What is formed is a single covalent bond because each atom requires one more electron to complete its octet.
What is the type of bond?Let us recall that a bond is formed between two atoms when we have to atoms bonded together, the atoms are connected by means of a chemical bond. There are different kinds of bonds that are used to connect atoms together such as;
Ionic bondsCovalent bondsMetallic bonds and Dative bondsWhen we talk about a diatomic molecule, we are talking about a molecule that is composed of two atoms that are exactly the same. This implies that the electronegativities of the atoms must be the same and the bond that is formed would be a nonpolar covalent bond. There are so many of such kinds of molecule that we have in chemistry such as the oxygen molecule, the hydrogen molecule, the fluorine molecule and so on.
Thus, given that diatomic molecule shares a single pair of electrons, we can say that this is a single covalent bond because each atom requires one more electron to complete its octet.
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Hello,
I am stuck on this: What is the de Broglie wavelength of a neutron (mass = 1.009 amu) moving at a velocity of 7.11 × 10⁶ meters per second?
I know the formula is wavelength= h/mv, but I keep getting the answer incorrect as: 4.67E-27
The de Broglie wavelength of the neutron moving at a velocity of 7.11×10⁶ m/s is 5.56×10¯¹⁴ m
de Broglie wavelength formulaλ = h /mv
Where
λ the de Broglie wavelengthh is the Planck's constantm is the massv is the velocityHow to determine the de Broglie wavelengthThe following data were obtained from the question:
Mass (m) = 1.009 amu = 1.009 × 1.661×10⁻²⁷ = 1.676×10⁻²⁷ KgVelocity (v) = 7.11×10⁶ m/sPlanck's constant (h) = 6.626×10¯³⁴ Jsde Broglie wavelength (λ) =?The de Broglie wavelength can be obtained as follow:
λ = h /mv
λ = 6.626×10¯³⁴ / (1.676×10⁻²⁷ × 7.11×10⁶)
λ = 5.56×10¯¹⁴ m
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ionic equation for the reaction between aqueous solution of potassium carbonate and dilute sulphuric acid
Answer:
Ionic equation for the reaction of Potassium Carbonate (aqueous) with dilute Sulphuric Acid gives Potassium Sulphate, Carbon Dioxide and Water.
What is ionic equation?
Ionic equations are chemical equations that represent the electrolytes in aqueous solution as dissociated ions, similar to molecular equations which express compounds as molecules. Usually, this is a salt that has been dissolved in water; in the equation, the ionic species are denoted by (aq) to denote that they are in aqueous solution.
Complete balanced chemical equation is given below:
K₂CO₃ (aq) + H₂SO₄ → K₂SO₄ (aq) + CO₂ + H₂O
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What is the value of secant theta given the diagram below?
Answer:
The value of sec theta is
How to determine the value of sec theta
From the diagram, we start by calculating the length of the hypotenuse (h).
So, we have:
Evaluate
Simplify
The value of the secant in the second quadrant is calculated as:
So, we have:
Evaluate
Hence, the value of sec theta is
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THANKS
11
5.0
(6 votes)
Explanation:
hope it helps
What kind of force acts within a molecule?
OA. A nonpolar force
OB. A Van der Waals force
OC. An intermolecular force
OD. An intramolecular force
The forces that act within a molecule are intramolecular forces.
What is intramolecular force?The forces that will be generated within a molecule between its atoms will be called the intramolecular force, these are mainly ionic and covalent bonds. These forces are the ones that must be overcome in order to generate a chemical change within the molecule and are the ones that determine what its chemical properties are within a substance.
Ionic bond is in which the complete transfer of electrons occurs and there is a large difference in electronegativity between the atoms, while in the covalent bond the electrons are shared between the two atoms and their electronegativities are similar.
Therefore, we can confirm that the forces that act within a molecule are intramolecular forces.
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The electron configuration of phosphorus is [Ne] 3s23p3. The correct electron dot structure of phosphorus should contain_?__ dots.
Answer:
since neon has 10 electrons, phosphorous would contain 10 + 2 + 3 = 15 electrons, with 5 being valence electrons.
aka 15 dots in total, with 5 dots in the valence electron shell
As a nucleus becomes unstable, it will undergo radioactive decay to.?
As a nucleus becomes unstable, it will undergo radioactive decay to form the daughter nuclei because daughter nuclei is more stable and lighter than the nucleus that decayed.
What is Radioactive Decay ?Radioactive decay is the process in which the emission of energy is in the form of ionizing radiation.
It is represented as
A = - (dN/dt)
where,
A = total activity
t = time
N = number of particles
What is Daughter nucleus ?Daughter nucleus is the nucleus which remains after the decay. Daughter nucleus form when the 2 nucleus usually by mitosis results from the division of a single nucleus.
Thus from the above conclusion we can say that As a nucleus becomes unstable, it will undergo radioactive decay to form the daughter nucleus.
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Calculate the kilojoules needed to heat 221 g of gold from 18 ∘C to 195 ∘C . Express your answer to three significant figures and include the appropriate units.
231 g of gold need to be heated from 18 °C to 195 °C in 5.27 kJ of heat.
The amount of heat, or Q, is what we want to know. To do this, we would apply the formula Q = m•C•T. The beginning and final temperatures can be used to calculate the m, C, and T. We start with 231 g of gold that is 18 °C and add heat to raise the temperature to 195 °C. We can use the following expression to determine how much heat is needed.
Q = c*m*Δt
Q: where the heat
c: The gold's specific heat capacity (0.129 J/g.°C)
m: mass
T: Alteration in temperature
Q=0.213 J/g C x 231 g x (195-18)
=5.27 x 1000 J
=5.27 kJ
231 g of gold need to be heated from 18 °C to 195 °C in 5.27 kJ of heat.
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. 2.514g Ca, 1.004g O empirical formula
The empirical formula of the given compound is [tex]CaO[/tex].
A chemical compound's empirical formula in chemistry is the simplest whole number ratio of atoms within a molecule.
Given:
Mass of Ca = 2.514g
Mass of O = 1.004g
Molar mass of Ca = 40.078g/mol
Molar mass of O = 15.999g/mol
To find:
Empirical formula = ?
Formula:
Empirical formula = Moles of Ca : Moles of O
Calculations:
No. of moles of Ca = 2.514 / 40.078
n of Ca = 0.06273 moles
No. of moles of O = 1.004 / 15.999
n of O = 0.06275 moles
Divide both by the lowest no. of moles
n of Ca : n of O = 1 : 1
Empirical formula = [tex]CaO[/tex]
Result:
[tex]CaO[/tex] is the empirical formula of the compound.
The complete question is:
In an experiment, a 2.514 g sample of calcium was heated in a pure stream of oxygen, and was found to increase in mass by 1.004 g. Calculate the empirical formula for the given compound.
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Insulin is biological molecule that regulates glucose levels in the human body.
Its chemical formula is C256H387N65079S6
Determine the percent composition of one of the elements of insulin. (25 points)
Show your work. (25 points)
Reveal the element chosen in the subject line. (25 points)
Share your % composition with a classmate that determined the % composition of a different element (25 points)
Insulin is a protein composed of chains, an a series with 21 amino acids and a B chain with 30 amino acids which are related together by using sulfur atoms. Insulin is derived from a seventy four-amino-acid prohormone molecule referred to as proinsulin.
The primary reason of insulin is to regulate the body's power deliver via balancing micronutrient stages throughout food intake 30. Insulin is crucial for transporting intracellular glucose to insulin-based mobile tissues together with the liver, muscle, and adipose tissue.
Insulin facilitates preserve blood sugar levels inside regular limits. It does this by means of taking glucose from the bloodstream and transporting it to the body's cells. Cells use glucose for strength and shop excess inside the liver, muscle, and adipose tissue.
Insulin offers cells with glucose for strength via reducing the frame's blood sugar levels and helping cells take in glucose. whilst blood sugar is too low, the pancreas releases glucagon.
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Which is the dependent variable
Concentration or
Time ?
calculate the mass in grams for .65 moles of N2
The mass in grams for .65 moles of N₂ is 18.2g
What is Mole?
Mole is the mass of a substance that contains 6.023 x 10²³ particles of the substance1 mol of Carbon-12 has mass of 12 grams and contains 6.022 x 10²³ of carbon atomsAtomic mass of nitrogen is 14u . A nitrogen molecule has 2 atoms of nitrogen. Thus its molecular mass is 14 × 2 = 28u.Molar mass is the mass of 1 mole of molecules i.e. mass of 6.022 × 10²³ molecules. Its the same number as molecular mass but the unit is in gramsWe can use the simple formulan = w / M
where
n = no of moles = .65
w = Mass of the given sample = ?
M = Molar mass ( Molar mass is same as molecular mass) = 28g
substituting the values
n = w / M
w = n × M
= .65 × 28
= 18.2g
Thus we can conclude that the mass in grams for .65 moles of N₂ is 18.2g
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What is a concept or principle from the natural sciences that is relevant to John Snow's work on Aesthetics?
We will immediately say that right here idea or idea or precept from the from the herbal sciences college students, herbal sciences- that could be a relevant that is real occasion to snow's paintings on Anaesthetics. the scholars is thereto substances.
Propofol, etomidate, and ketamine are the intravenous sedative-hypnotic retailers typically used to result in standard anesthesia, at the same time as adjuvant dealers, eg, opioids, lidocaine, midazolam are frequently used to complement the effects of the primary sedative-hypnotic induction agent.
Examples consist of an epidural to ease the pain of childbirth or at some stage in a cesarean phase, a spinal for hip or knee surgical procedure, or an arm block for hand surgical treatment. preferred anesthesia: This remedy makes you subconscious and insensitive to ache or other stimuli.
Propofol is the maximum usually used IV fashionable anesthetic. In lower doses, it induces sleep whilst allowing a affected person to maintain respiration on their personal. It's far regularly utilized by anesthesiologist for sedation similarly to anxiolytics and analgesics.
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Match the type of mechanical waves to images of particle motion. In each case, the wave moves from left to right.
Image 1 - Surface wave
Image 2 - Longitudinal wave
Image 3 - Transverse wave
What is a wave?The term wave refers to a disturbance along a medium that transfers energy. We know that a transverse wave is one in which the direction of wave motion is perpendicular to that of the disturbance. This occurs in a water wave.
The Longitudinal wave is one in which the direction of the wave motion is parallel that of the disturbance. This is common in a spiral spring. A surface wave could be seen during an earthquake occurrence.
Let us now match the waves;
Image 1 - Surface wave
Image 2 - Longitudinal wave
Image 3 - Transverse wave
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A hamster in a ball begins its journey 5 feet to the left of a refrigerator, travels 20 feet to the right of the refrigerator, and
ends its journey directly in front of the refrigerator.
If negative values are assigned to positions to the left of its starting position and positive values are assigned to positions
to the right of its starting position, what is the displacement of the hamster?
(1 point)
O 5 feet
O-5 feet
O 0 feet
O 20 feet
The displacement of the hamster ball is equal to -5 feet. Therefore, option (B) is correct.
What is displacement?The displacement of an object can be demonstrated as the change in the position of an object. The displacement can be defined as the minimum length between the initial and the final point of an object.
The displacement can be defined as a vector quantity posses both direction of displacement and magnitude. Therefore, the measurement of the displacement of an object includes direction.
The S.I. unit of the displacement meters and the C.G.S. unit are centimeters the same as the distance.
A hamster in a ball starts its journey 5 feet to the left of a refrigerator, travels 20 feet to the right of the refrigerator, and ends its journey in front of the refrigerator.
Therefore, the displacement of the hamster ball is equal to -5 feet.
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It takes a turtle 10 seconds to increase his speed from 1 m/s to 5 m/s. What is the acceleration of the turtle
The acceleration of the turtle, given the data from the question is 0.4 m/s²
What is acceleration?This is defined as the rate of change of velocity which time. It is expressed as
a = (v – u) / t
Where
a is the acceleration v is the final velocity u is the initial velocity t is the time How to determine the accelerationThe acceleration of the turtle can be obtained as follow:
Time (t) = 10 sInitial velocity (u) = 1 m/sFinal velocity (v) = 5 m/sAcceleration (a) =?a = (v – u) / t
a = (5 – 1) / 10
a = 4 / 10
a = 0.4 m/s²
Thus, acceleration of the turtle is 0.4 m/s²
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Fill in the blanks substance X Y Z MASS(g) 10.0 50.0 volume cm 20.0 5.0 density 10.0 4.0
Density of X = 0.5 g/cm³
Volume of Y = 5 cm³
Mass of Z = 20 g
As we know Density is the substance's mass per unit of volume. So according to the given values of X,Y and Z we can calculate density, mass and Volume.
For X:
Volume of X = 10g
Mass of X = 50cm³
Density =Mass ÷ Volume
Density = 10 /50
Density = 0.5 g/cm³
For Y
Mass of Y = 50g
Density of Y = 10g/cm³
Volume = Mass / Density
Volume = 50 / 10
Volume = 5 cm³
For Z:
Volume of Z = 5 cm³
Density of Z =4 g/cm³
Mass of Z = Volume ×Density
Mass of Z = 4×5
Mass of Z = 20g
Complete question is
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The density is quantitative method to measure the mass and volume of a substance.
The formulae of density is mass of a substance per unit volume.
1) For X
The mass of X = 10.0gm
The volume of X = 20.0 cm³
Then density of X = mass/ volume
Density of X = 20/10
Density of X = 2 g/ cm³
2) For Y
The mass of Y = 50gm
density of Y = 10 gm/cm³
volume of Y = mass /density
Volume of Y = 50/10
Volume of Y = 5cm³
3) For Z
The volume of Z = 5 cm³
The density of Z = 4 gm/cm³
The mass of Z = density ×volume
The mass of Z = 5× 4
The mass of Z = 20 gm
The density of X = 2 g/ cm³
The Volume of Y = 5cm³
The Mass of Z = 20 gm
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A large balloon is initially filled to a volume of 11.2 L at 325 K and a pressure of 3450 mm Hg. What volume of gas will the balloon contain at 1.4 atm and 325 K?
Answer:
36 L
Explanation:
Since the temperature remains constant, you can use Boyle's Law to find the final volume:
P₁V₁ = P₂V₂
In this formula, "P₁" and "V₁" represent the initial pressure and volume. "P₂" and "V₂" represent the final pressure and volume. Before, you can plug the given values into the equation and solve for "V₂", you need to convert mmHg to atm to maintain consistent units.
760 mmHg = 1 atm
P₁ = 3,450 mmHg / 760 mmHg = 4.54 atm P₂ = 1.4 atm
V₁ = 11.2 L V₂ = ? L
P₁V₁ = P₂V₂ <----- Boyle's Law
(4.54 atm)(11.2 L) = (1.4 atm)V₂ <----- Insert values
50.848 = (1.4 atm)V₂ <----- Multiply 4.54 and 11.2
36 = V₂ <----- Divide both sides by 1.4
If you take a 13.0- mL portion of the stock solution and dilute it to a total volume of 0.650 L , what will be the concentration of the final solution?
To make a stock solution, weigh out the proper amount of a pure solid or measure out the proper amount of a pure liquid, put it in the right flask, and then dilute it to the desired volume. Depending on the intended concentration unit, many methods can be used to measure the reagent.
If you take a 13.0- mL portion of the stock solution and dilute it to a total volume of 0.650 L , what will be the concentration of the final solution?
"The final solution's concentration would be 0.26M."
By adding extra solvent, you are lowering the concentration of the stock solution in the issue (This process is known as dilution).
Since you increased the volume of the fluid from 13 to 650 milliliters, it was diluted:
50 times = 650 mL / 13 mL
We must now take the concentration of the stock solution in order to determine the concentration of a final solution.
If the standard solution is 13M, then
The final solution's concentration would be 13M / 50 = 0.26M.
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Suppose you have two samples that are equal in weight, 17.8
g Ti
and 17.8
g Fe2O3
.
Calculate the number of moles of each substance.
Considering the definition of molar mass, the number of moles of Ti and Fe₂O₃ are 0.087 moles and 0.11 moles respectively.
Definition of molar massThe molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.
The molar mass of a compound is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.
Molar mass of TiThe molar mass of Ti is 204.37 g/mole.
Molar mass of Fe₂O₃You know the molar mass of the elements is:
Fe= 55.85 g/moleO= 16 g/moleSo, the molar mass of the compound Fe₂O₃ is calculated as:
Fe₂O₃= 2× 55.85 g/mole + 3× 16 g/mole
Solving:
Fe₂O₃= 159.7 g/mole
Number of moles of each substanceYou can apply the following rules of three:
If by definition of molar mass 204.37 grams of Ti are contained in 1 mole, 17.8 grams of Ti are contained in how many moles of Ti?moles of Ti= (17.8 grams× 1 mole)÷ 204.37 grams
moles of Ti= 0.087 moles
If by definition of molar mass 159.7 grams of Fe₂O₃ are contained in 1 mole, 17.8 grams of Fe₂O₃ are contained in how many moles of Fe₂O₃?
moles of Fe₂O₃= (17.8 grams× 1 mole)÷ 159.7 grams
moles of Fe₂O₃= 0.11 moles
Finally, the number of moles of Ti and Fe₂O₃ are 0.087 moles and 0.11 moles respectively.
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How many atoms or molecules are in 10 grams of table salt?
Answer:
1.03 x 10²³ atoms NaCl
Explanation:
To find the amount of table salt (NaCl) in atoms, you need to (1) convert grams to moles (using the molar mass) and then (2) convert moles to atoms (using Avogadro's Number). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units.
(Step 1)
Molar Mass (NaCl): 22.99 g/mol + 35.45 g/mol
Molar Mass (NaCl): 58.44 g/mol
10 grams NaCl 1 mole
------------------------ x ----------------------- = 0.17 moles NaCl
58.44 grams
(Step 2)
Avogadro's Number:
6.022 x 10²³ atoms = 1 mole
0.17 moles NaCl 6.022 x 10²³ atoms
-------------------------- x -------------------------------- = 1.03 x 10²³ atoms NaCl
1 mole
A __________ is a flowing, moving stream of water that feeds into a body of water.
hill
plain
plateau
river
Answer:
River
Explanation:
What is the mass of the oxygen
used during the reaction?
Iron + Oxygen → Iron Oxide
Iron
19.43 g
Iron Oxide
20.91 g
Give your answer to the correct number of
significant figures.
Mass of Oxygen (g)
The mass of the oxygen used during the reaction is 8.16 g
The reaction is given as ,
4Fe + 3[tex]O_{2}[/tex] → 2[tex]Fe_{2} O_{3}[/tex]
The molar ratio of the above reaction = 4:3
It means four moles of Fe react with 3 moles of oxygen molecule to form Iron Oxide .
mole of iron = given mass / molar mass = 19.43 g / 55.845 g/mole = 0.34 mole
If four moles of Fe react with 3 moles of oxygen molecule to form Iron Oxide .
The number of moles of oxygen = 3 moles × 0.34 mole / 4 moles = 0.22 mole
The number of moles of oxygen = given mass / molar mass = 0.22 mole
The number of moles of oxygen = given mass / 32= 0.22 mole
given mass = 0.22 × 32 = 8.16 g
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Answer: The answer is 1.48
Explanation:
CH₂-CH3
CH3-CH₂-CH-CH-CH₂-CH3
-CH-CH-
CH₂-CH3
What is this compound?
The compound is-
CH₂-CH3 = C2H5 = it is ethyl radical
CH3-CH₂-CH-CH-CH₂-CH3= Hex-3-ene
-CH-CH- = acetylene or ethyne
CH₂-CH3 = ethyl radical
Acetylene, commonly referred to as ethyne, is an alkyne with a linear structure and a triple bond.Acetylene is an alkyne chemical. Between the two carbon atoms, there is a triple bond. Ethyne is another name for it. Its molecular weight is 26.04 g/mol, and it is just marginally soluble in water. Because it has a triple bond, the molecule is unsaturated. The acetylene molecule's carbon atoms go through so hybridization to create sp hybridized orbitals that interact with two hydrogen atoms. A sigma bond and two pi bonds make up the triple bonds in alkynes. The head-on overlap of the two molecular orbitals creates sigma bonds, whereas the head-on overlap ofTo know more about Acetylene visit : https://brainly.com/question/20529866
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Rank each of the following elements by the common number of single bonds the element makes when it bears no formal charge. Each element is from
the second row of the periodic table F,O,N,C,NE
In this ranking we would have; C > N > O > F > Ne.
What is the formal charge?The term formal charge has to do with the charge that an atom appears to have in compound. We can obtain the formal charge from the formula;
Formal charge = [# of valence electrons] – [electrons in lone pairs + 1/2 the number of bonding electrons]
Let us now consider the atoms; F, O, N, C, Ne. We have to rank the atoms by the common number of single bonds the element makes when it bears no formal charge.
In this ranking we would have; C > N > O > F > Ne.
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Why is it important to have only one independent variable and to control the
other variables when performing science experiments
Scientists cannot pinpoint the changes or variations in the results to a single source when more than one variable is altered during an experiment. The outcomes can be attributed to the independent variable directly by examining and modifying each variable separately.
You can evaluate the outcomes of your experiment to determine how much one adjustment impacted the outcome by testing just one variable at a time. You won't be able to identify the variable that caused the outcome if you're testing two variables simultaneously. A controlled variable is one that is kept constant with the goal of not affecting how an experiment turns out. Controlling any factors that can affect an experiment's outcomes allows us to be certain that the altered variable is what caused our results.
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Answer it please! I just need an example
Answer:
Sorry what is you question? If it is about the length of the lego piece, then then length is approximately 3.7 cm.
Explanation:
Calculate the number of grams of xenon in 3.541 g
of the compound xenon tetrafluoride.
The mass (in grams) of xenon in 3.541 g of the compound xenon tetrafluoride is 2.243 grams
How to determine the mass of Xe in 3.541 g of XeF₄We'll begin by listing the composition of xenon tetrafluoride, XeF₄
1 mole of XeF₄ contains the following:
1 mole of XeF₄ = 131.3 + (4 × 19) = 131.3 + 76 = 207.3 g1 mole of XeF₄ contains 131.3 g of Xe1 mole of XeF₄ contains 76 g of FThe mass of Xe in 3.541 g of XeF₄ can be obtained as illustrated below:
207.3 g of XeF₄ contains 131.3 g of Xe.
Therefore,
3.541 g of XeF₄ will contain = (3.541 g × 131.3 g) / 207.3 g = 2.243 g of Xe
Thus, 2.243 g of Xe is present in 3.541 g of xenon tetrafluoride, XeF₄
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Select the statement that accurately summarizes how heat energy spreads throughout a substance. A) As a particle is heated, it absorbs energy. As it bumps into a nearby particle, it transfers all of the heat energy to the second particle. This leaves the first particle with no energy, so its movement slows.B) Heated particles absorb the energy and begin to move more and faster. As they move around, they bump into nearby particles and transfer some of their energy to those particles. This continues until all of the particles in the substance have the same amount of energy. C)Particles are heated and move around. They transfer thermal energy to the other particles as they bump into each other. This continues until all the particles lose all of their energy and motion stops. D)When particles are heated, they become sluggish and slow down. They transfer energy to nearby particles causing them to slow down, too.
The statement " Heated particles absorb the energy and begin to move more and faster. As they move around, they bump into nearby particles and transfer some of their energy to those particles. This continues until all of the particles in the substance have the same amount of energy " summarises the heat transfer throughout the substance.
Heat is the thermal energy that is transferred from a system to its environment or from one thing to another. The object with the higher temperature is transferring energy to the thing with the lower temperature.In order to move thermal energy from one thing or thing to another, or from a system to its surroundings, there are three possible methods:ConductionConvectionRadiation The energy of the particles increases when energy is transmitted to an object. This indicates that the particles have higher kinetic energy, which causes them to move and vibrate more fastly. As the particles move more fastly, they "bump" into nearby particles and transfer some of their energy with them. In this manner, the substance at the other end receives the energy.This is how energy is transferred in a substance.
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ILL GIVE BRAINLIEST TO THE FIRST ANSWER!!!!
For this and the following two questions, determine the mass of an object (in Gg) if it has a density of
2.007 g/cm3 and the dimensions are 20. cm x 20.0 cm x 70.0 cm. What is the right-most significant figure after performing the calculation in scientific notation?
Answer:
Your mom
Explanation:
Julie I think that this is the most easiest question someone has every asked in my whole entire life. I think you should really go to a lower class and will benefit you more. I wish you some what of some success!!!!
Mass of the object is 5.6196 * 10^4 g.
What is density?The term density has to do with the ratio of the mass to the volume of a substance. The density is an intrinsic property of a substance which could be used to identify a substance.
Mass of the substances = ?
Volume of the substance = 20. cm x 20.0 cm x 70.0 cm =28000 cm^3
Density of the substance = 2.007 g/cm3
Density = mass/volume
mass = density * volume
mass = 2.007 g/cm3 * 28000 cm^3
mass = 5.6196 * 10^4 g
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Question 4.1Write the equilibrium constant expression,Kc , for the following reaction:
(If either the numerator or denominator is 1, please enter 1.)
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equilibrium constant expression, Kc ,for the following reaction: Kc for the Reaction is: 1 / [Fe⁺³]² [S⁻²]³
What is Equilibrium Constant of a Reaction ?The equilibrium constant is a type of chemical reaction (usually denoted as the symbol K) use to give the relationship between the products and reactants when a chemical reaction reaches to it's equilibrium. Such as the equilibrium constant of concentration (marked as Kc) of a chemical reaction at equilibrium is defined as the ratio of the concentration of products to that of the concentration of the reactants.It is important for us to note that there are various different types of equilibrium constants which provides relationship between products and the reactants of equilibrium reactions in variety of units.For a chemical reaction, the equilibrium constant is defined as the ratio between the part of reactant and that of product which is generally used in order to determine the chemical behavior.Given Reaction and it's equilibrium constant is:
2Fe⁺³(aq) + 3S⁻²(aq) ⇄ Fe₂S₃ (s)
Now Equilibrium Constant of the reaction is: [Fe₂S₃] / [Fe⁺³]² [S⁻²]³
We know that concentration of solid compound is 1.
Hence, Kc for the Reaction is: 1 / [Fe⁺³]² [S⁻²]³
Thus, from the above conclusion we can say that, Kc for the Reaction is: 1 / [Fe⁺³]² [S⁻²]³ .
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