Answer:
Have some attraction towards each other
Explanation:
Gases deviate from the ideal gas behavior because their molecules have forces of attraction between them. At high pressure, the molecules of gases are very close to each other so the molecular interactions start operating and these molecules do not strike the walls of the container with full impact.
Hope this helps :-)
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<3 simplysun
ps. I do not own any of these answers so please don't give full credit to me
A soil sample of 2.65g was analyzed and found to contain 0.0625mg of Ca2+ and 2.45*10^-3g of Mg2+.Classify each analyte based on its level in the soil sample
Based on the milligram per Kg of soil sample of each analyte, calcium ion, Ca2+ and magnesium ion, Mg2+ are both classified as macronutrients.
What are soil nutrients?Soil nutrients are minerals which are found present in the soil and which are required by plants for their growth and development.
Soil nutrients can be classified based on amount needed by plants as well as the amount present in the soil into:
micronutrients- present in small amounts (<100 mg/kgmacronutrients- present in relatively larger amounts (>100 mg/kg)The mg/Kg of each analyte in the soil sample is as follows:
mass of soil sample = 2.65 g = 0.00265 kg
Calcium ion:
amount per mg/Kg of soil sample = 0.625mg/0.00265 kg
amount per mg/Kg of soil sample = 236 mg/kg
Magnesium ion:
0.00245 g = 2.45 g
amount per mg/Kg of soil sample = 2.45 mg/0.00265
amount per mg/Kg of soil sample = 924 mg/Kg
Therefore, calcium ion, Ca2+ and magnesium ion, Mg2+ are both classified as macronutrients.
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What is the maximum concentration of Ag⁺ that can be added to a 0.00620 M solution of Na₂CO₃ before a precipitate will form? (Ksp for Ag₂CO₃ is 8.10 × 10⁻¹²)
For the maximum concentration of Ag+ is mathematically given as
x = 3.6×10−5
What is the maximum concentration of Ag⁺ that can be added to a 0.00620 M solution of Na₂CO₃ before a precipitate will form?Generally, the Ksp equation for this reaction is mathematically given as
[tex]K_{sp}=[Ag^+]^2[CO_3^{2-}][/tex]
[CO3^2-]=0.00620M
Ksp =[Ag+}^2 x 0.00620
8.1x10^-12 = x^2 x 0.00620
x = [tex]\sqrt{8.1*10^{-12}/0.00620}[/tex]
x = 3.6×10−5
In conclusion, the maximum concentration of Ag⁺ is
x = 3.6×10−5
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Draw the reactants using the drawing tool. Keep in mind that one molecule of nitrogen has two bonded atoms, and one molecule of hydrogen has two bonded atoms.
The formation of ammonia gas involves reacting hydrogen gas and nitrogen gas in a mole ratio of 3 to 1. as shown below:
[tex]N_2 + 3H_2 \rightarrow 2NH_3[/tex]What is the equation of the formation of ammonia?Ammonia gas is formed from the reaction between nitrogen gas and hydrogen gas.
Three moles of hydrogen gas will react with 1 mole of nitrogen gas to form 2 moles of ammonia gas.
The equation of the reaction is given below as:
[tex]N_2 + 3H_2 \rightarrow 2NH_3[/tex]
Therefore, the formation of ammonia gas involves reacting hydrogen gas and nitrogen gas in a mole ratio of 3 to 1.
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i’ll give brainliest to whoever can give me these answers or at least the intra and intermolecular bonds answers
#1
Intermolecular bonds:-
One Single bond#Carbon monoxide
Formula:-
COMolecular geometry
LinearDrawing
C=OBonds=3
#Silicon tetrafluoride
Formula
SiF_4geometry
TetrahedralBonds=4
#Titanium (4) Sulfide
TiS_2Geometry
LinearBonds=2
What is the definition of specific heat?
A. The heat needed to raise the temperature of 1 g of a substance
1°C
B. The temperature change between the melting and boiling points of
a substance
C. The heat required to break the molecular bonds within a
substance
OD. The total amount of energy contained within 1 mole of a
substance
SUBMIT
Answer:
A: The heat needed to raise the temperature of 1 g of a substance1°C
Explanation:
Specific heat is the temperature required to raise the temperature of the unit mass of a given substance. With that being said, of all options A: protrays the definition perfectly.
Side Note: I hope this helps feel free to let me know if you have any other questions.
Is glycosphingolipid and Sphingomyelin same?
Answer:
Yes, they are same
Explanation:
Glycosphingolipids are a subtype of glycolipids containing the amino alcohol sphingosine. They may be considered as sphingolipids with an attached carbohydrate. Glycosphingolipids are a group of lipids (more specifically, sphingolipids) and are a part of the cell membrane.
Answer:
glycosphingolipid is an example of sphingomyelin
Determine the pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C. Carry out two calculations: in the first calculation, assume that methane behaves as an ideal gas; in the second calculation, assume that methane behaves as a real gas and obeys the van der Waals equation
The pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C is 101.94atm.
How to calculate pressure?The pressure of an ideal gas can be calculated using the following formula:
PV = nRT
Where;
P = pressure V = volumen = number of molesR = gas law constantT = temperatureAccording to information in this question;
T = 25°C = 25 + 273 = 298KV = 244.6mL = 0.24LR = 0.0821 Latm/KmolP × 0.24 = 1 × 0.0821 × 298
0.24P = 24.47
P = 24.47/0.24
P = 101.94atm
Therefore, the pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C is 101.94atm.
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If the mercury in a barometer raises 21.7 centimeters due to a change in ambient pressure, what is the corresponding change in pressure in atm?
The corresponding change in pressure in atm is 0.285 atm.
To solve the question, we need to know what pressure is.
What is pressure?This is the force per unit area acting on a surface.
Change in pressure in the mercury barometer.The change in pressure in the mercury barometer is given by ΔP = ρgh where
ρ = density of mercury = 13600 kg/m³, g = acceleration due to gravity = 9.8 m/s² and h = height of mercury = 21.7 cm = 0.217 mSo, ΔP = ρgh
= 13600 kg/m³ × 9.8 m/s² × 0.217 m
= 28921.76 kg/m-s²
= 28921.76 N/m²
= 28921.76 Pa
The change in pressure in atm
Since 1 atm = 101325 Pa
28921.76 Pa = 28921.76 Pa × 1 atm/101325 Pa
= 0.285 atm
So, the corresponding change in pressure in atm is 0.285 atm.
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For the reaction, determine the equilibrium constant and identify if the reaction is reactant or product favored at equilibrium
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
Let's calculate Equilibrium constant for the following reaction. [tex] \sf{K_c} [/tex]
if we balance the equation, we will get :
[tex] \qquad\sf{C_{(s)}+ CO_2\:{(g)} \leftrightarrow2\: CO_{(g)}} [/tex]
According to question ~
[tex] \qquad \sf{K_c = \dfrac{[CO]²}{[CO_2]}} [/tex][tex] \qquad \sf{K_c = \dfrac{({5.4×10}^{-5})²}{({8.3×{10}^{-6}}} }[/tex][tex] \qquad \sf{K_c = \dfrac{(29.16×{10}^{-10})}{({8.3×{10}^{-6}}}} [/tex][tex] \qquad \sf{K_c = \dfrac{{29.16 }}{{8.3}} ×{10}^{-4}}[/tex][tex] \qquad \sf K_c = 3.51×{10}^{-4} [/tex]If you did not neutralize the saturated citric acid before you poured it down the drain, describe the potential consequences to the plumbing and the environment.
The plumbing will be corroded and could lower the pH of natural water bodies
What is acidic waste water?The term acidic waste water means water that has a low pH due to the presence of an acidic substance inside the waste water. As we know, citric acid has a low pH.
If this acid is disposed without proper neutralization, the plumbing will be corroded due to the fact that the acid will react with the plumbing material.
Also, this acidc waste could lower the pH of natural water bodies when it gets into natural water bodies.
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m A 10.00g sample of a substance is found to contain 5.12g of water. What is the percent by of water in the compound? A
. 5.12% B. 4.88% C. 48.8% D. 51.2%
Answer:
The answer is D) 51.2%
Explanation:
5.12g of 10.00g of the substance is water:
percentage of water= 5.12 x 10.00 =51.2%
Answer:
b
Explanation:
Which fossil fuel is a solid?
O oil
coal
O natural gas
Answer:
Coal
Explanation:
Most of the food that organisms eat can be traced back to? .
A. plants
B. soil
C. animals
D. bacteria
Answer:
A. Plants
Explanation:
Plants are producers, which make their own food. Other organisms, such as rodents, birds, and wild cats, are consumers, which receive their energy from plants or other consumers.
true or false:Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases
Answer:
True
Explanation:
This is true.
Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases is a true statement.
What are the main components of the atmosphere?The main components of the Earth's atmosphere are nitrogen (78%) and oxygen (21%).
Atmosphere, the gaseous layer that surrounds the Earth, is composed of gases such as oxygen, hydrogen and carbon dioxide. It is divided into layers and ensures survival on the planet.
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When 96 grams of oxygen are produced, how many grams of hydrogen must react
according to the equation 2H2+O2--> 2H20?
A. 12
B. 6
C. 48
D. 24
Which of the following is a valid mole ratio from the balanced equation 2Fe2O3 + 3C --> 4Fe + 3CO2?
2 mol Fe2O3
4 mol Fe
4 mol C
3 mol Fe
2 mol Fe2O3
4 mol C
3 mol C
4 mol CO2
Answer:
From the given balanced equation, the valid mole ratio is four moles of Fe over 3 moles of moles of c02..
Explanation:
Mole ratio can be defined as the ratio of mole compound with the another.
2. Calculate and express the following in the correct units with the correct number of
significant figures
(a) 7.310 km + 5.70 km
(b)(3.26 x 10^-3mg)-(7.88 x 10^-5 mg)
(c) (4.02 x 10^6dm) + (7.74 x 10^7dm)
(d) (7.8 m - 0.34 m) + (1.15 s +0.82 s)
Answer:
Socratic app
Explanation:
it will help you
what type of critial thinking is important in agriscience
Answer:
Explanation:
Observation. Observational skills are the starting point for critical thinking. People who are observant can quickly sense and identify a new problem.
Analysis. Once a problem has been identified, analysis skills become essential. ...
A 25.0 g sample of N2 gas, has a volume of 50.0 L and a pressure of 630. mm of Hg. What is the temperature of the gas? Universal Gas Constant, R = 62.4 L.mm Hg/mole.K
Answer:
565.4 K
Explanation:
Remember PV = nRT
630 * 50 = 25/28 * 62.4 T
T = 565.4 kelvin
A sample of neon gas has a volume of 5.0 mL at a pressure of 1.50 atm. What is the pressure exerted by the gas if the volume is increased to 10.0 mL, at constant temperature?
A. 1.5 atm
B. 9.0 atm
C. 0.25 atm
D. 7.5 atm
E. 0.75 atm
Answer:
p2 = .75 atm
Explanation:
p1 v1 = p2 v2
5 * 1.5 = p2 10
When 8.45 g of propane burns at STP, what volume of carbon dioxide is produced?
C3H8+ 5O2 > 4H2O+ 3CO2
The answer is 12.9L (I NEED THE STEPS)
The volume of carbon dioxide produced if 8.45 g of propane is burned would be 12.9 L
Stoichiometric calculationFrom the equation of the burning:
[tex]C_3H_8+ 5O_2 -- > 4H_2O+ 3CO_2[/tex]
The mole ratio of propane burned to carbon dioxide produced is 1:3.
Mole of 8.45 g propane = 8.45/44.1 = 0.19 moles
Equivalent mole of carbon dioxide produced = 0.19 x 3 = 0.57 moles
1 mole of any gas at STP = 22.4 L
0.57 moles of carbon dioxide at STP = 22.4 x 0.57 = 12.9 L
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True or False: Based on the evidence in the graph, when 10 g of Ce2(SO4)3 is dissolved in 100 mL of water at 20°C, the solution is said to be unsaturated.
Based on the evidence in the solubility graph, when 10 g of Ce2(SO4)3 is dissolved in 100 mL of water at 20°C, the solution is said to be saturated.
What are unsaturated solutions?An unsaturated solution is a solution which contains less solute than it can actually dissolved in a given volume of solvent at a given temperature.
A solubility curve or graph provides information about the solubility of a solute at a given temperature.
From the solubility graph given, at 20°C, less than 10 g of Ce2(SO4)3 will be dissolved in 100 mL of water.
Therefore, when 10 g of Ce2(SO4)3 is dissolved in 100 mL of water at 20°C, the solution is said to be saturated.
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Calculate the energy required to excite a hydrogen electron from level n=1 to level n=3.
Answer:
The energy required is 1.634×J, the wavelength is 1.215×m, and the kind of electromagnetic radiation is the ultraviolet radiation.
Explanation:
In the question above, the initial level = 1, and = 2. Then, we use Rydberg's equation to calculate the wavelength of the light absorbed by the atom during the transition.
Man is circled here in blue in the Quaternary Period. Locate it. Compare the location of man to the entire history of the world (the beginning of the spiral at the bottom left). What do you notice about the amount of water vs the amount of land as you spiral upward? Why do you think that is? What do you notice about the complexity of life as you spiral upward? Why do you think that is?
Answer:The upward spiral theory of lifestyle change explains how positive affect can facilitate long-term adherence to positive health behaviors. The inner loop of this spiral model identifies nonconscious motives as a central mechanism of behavioral maintenance.
Explanation://
1. If the water is not completely removed from the salt during the heating process will the reported water-to-salt mole ratio (X) be high or low? Explain
Answer:
The water in the hydrate (referred to as "water of hydration") can be removed by heating the hydrate. When all hydrating water is removed, the material is said to be anhydrous and is referred to as an anhydrate.
Explanation:
If the water is not completely removed from salt during heating process it will result in higher mole ratio of water to salt as mass of water will also be accounted while calculating mole ratio.
What is salt?Salt is defined as a chemical compound which is ionic in nature and consists of cation and an anion.It has no net electrical charge as the charges are completely neutralized in case of salts.
They are classified as acidic, basic or neutral salts depending on the ions they produce on dissolution.They have wide variety of colors depending on the elements from which they are formed and have five basic tastes.Salts are usually odorless except a few exceptions . They are highly soluble in water and are insulators in the solid state, to make them conductive they need to be melted or dissolved.
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If a 50.00 mL of 0.0155 M HI(aq) is mixed with 75.00 mL of 0.0106 M KOH(aq), what is the pH of the final solution
If a 50.00 mL of 0.0155 M HI(aq) is mixed with 75.00 mL of 0.0106 M KOH(aq), the pH of the final solution is mathematically given as
pH=13.16
What is the pH of the final solution?Generally, the equation for the Chemical reaction is mathematically given as
2HI+Ba(OH_2)--->BaI2+2H2O
Therefore
pOH=-log{OH}
pOH=-log(6.52)
pOH=0.8142
In conclusion, for the pH
pH+pOH=14
pH=14-0.8142
pH=13.16
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A certain orbital has four nodes in total. Which of the following could it be?
-5s
-5p
-5d
-5f
-all
Answer:
5p
Explanation:
We know
Number of Nodes =n-l
i)5s
n=5
l=0
Number of nodes=5-0=5
ii)5p
n=5
l=1
Number of nodes=5-1=4
Hence correct option is option b 5P
Atomic orbitals are the property that explains the position of the electron. 5p orbital has four nodes in total. Thus, option B is correct.
What are nodes?Nodes are the point in the orbit where the electron density is zero and is given by n-1.
In 5s the n = 5, l = 0 so, number of nodes = 5. In 5p, n = 5, l = 1, so nodes = 4. In 5d, n = 5, l = 2, so nodes = 3, and in 5f, n = 5, l = 3 so, nodes = 2.
Therefore, option b. 5p has four orbital nodes.
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6.
Which of the following is NOT an example of a chemical change?
A. burning wood
B. the production of simple sugars through photosynthesis
C. fermentation of sugars into alcohol
D. grinding wood into sawdust
Answer:
D
Explanation:
3.1.4 Quiz: Covalent Bonds
Question 7 of 10
Choose the statements that are true about hydrogen.
A. Hydrogen has only one electron shell.
B. Hydrogen can bond with oxygen to make water,
C. When hydrogen has eight electrons in its valence shell, it has a
full valence shell.
D. If two hydrogen atoms bond to one oxygen atom, both atoms
have full valence shells.
Answer:
C. When hydrogen has two electrons in its valence shell, it has a full valence shell.
D. Hydrogen can bond with oxygen to make water.
As both C & D are correct, there would be two answers.
Hope this helps!
Explanation:
Answer:
The answer is A: Hydrogen has only one electron shell.
Which statement about geologic times are true? ~Pick multiple answers~
Answer:
the correct answers are A,D,E, and G
Explanation: