What does a coefficient tell you?

Answers

Answer 1

 The coefficient tells you how many molecules of that substance there is. 


Related Questions

Why isn't this structure possible for an isomer of butanoic acid? Like why does the acid group always be on the end of a molecule?

Answers

It’s just a nomenclature law that the carbonyl group has to be on the end of the chain, so just remember that when drawing it out.

It is not possible for the structure to be an isomer of butanoic acid because it consists of 5 carbon atoms.

What is an isomer of butanoic acid?

An isomer of butanoic acid is a chemical compound with the same molecular formula but a different structural arrangement of its atoms.

Butanoic acid, also known as butyric acid, has the molecular formula C₄H₈O₂. It is a carboxylic acid with a straight-chain arrangement of four carbon atoms.

One isomer of butanoic acid is called isobutyric acid (2-methylpropanoic acid). Isobutyric acid has the same molecular formula C₄H₈O₂, but its carbon atoms are arranged in a branched structure.

So from the given structural formula, it is not possible for the structure to be an isomer of butanoic acid because it consists of 5 carbon atoms.

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Which argument is correct

Answers

Answer:

The first agrument.

Explanation:

Because only heat can be transfered. Thats why if you put something hot in a refridgerator the heat energy will go off in the fridge and powers the cold energy. Im pretty sure this is right this is what my teachers tought me so i hope they right

Which particle model diagram represents xenon at stp?

Answers

The model that should show the corresct representation of xenon gas is one in which the gas molecules  are isolated and monoatomic.

What is a noble gas?

A noble gas is a member of group 18 of the periodic table. Noble gases are known not to interact with each other and occur as monoatomic particles.

The images are not shown here hence the question is incomplete. However, we do know that any of the models that show individual monoatomic particles is a representation of xenon gas.

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2) Usually, when the particle size is decreased, what will happen to the rate of dissoving?
A) It will stop.
B) It will increase.
C) It will decrease.
D) It will remain constant.

Answers

B) It will increase.

The rate of dissolving is usually affected due to the change of size, temperature of the stirring of the solution.

As the size is decreased it also means that the particles are smaller therefore it will be easier to dissolve. So as a result the rate of dissolving increases

Which sphere is the troposphere a part of?
Select one:

the geosphere

the biosphere

the hydrosphere

the atmosphere

Answers

Answer:

The atmosphere is your answer

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A bicycle tire has a volume of 1. 0 L at 22°C. If the temperature of the tire is increased to 52°C, what is the resulting volume of the tire? Type in your answer using the correct number of significant figures. Use the formula for Charles' Law: V1 T1 = V2 T2 L.

Answers

The resulting volume of the tire would be 1.1 L

What is Charles's law?

According to this law, the volume of a given gas is directly proportional to its temperature, provided that the pressure remains constant.

The law can be presented mathematically as;  

[tex]\dfrac{V_1}{T_1} =\dfrac{V_2}{T_2}[/tex]

In this case, V1 = 1.0 L, T1 = 22 °C (295 K), T2 = 52 °C (325 K).

[tex]V_2=\dfrac{V_1T_2}{T_1}[/tex]V

[tex]V_2=\dfrac{1\times 325}{295}=1.1\ L[/tex]

                             

Hence the final volume of the tire will be 1.1 L

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Which statement about London dispersion forces is true?

Answers

The London dispersion force is "the weakest intermolecular force"

help
Writing a Scientific Argument

Write a scientific argument that answers the question Why is the liquid oxygen machine producing less liquid oxygen than normal?

State your claim and use evidence to support it. For each piece of evidence you use, explain how the evidence supports your claim or refutes another claim. Remember to explain what happened at both the macro and molecular scales.

Answers

Answer: The liquid oxygen machine is producing less liquid oxygen than normal because there's a low attraction between the molecules.

It should be noted that oxygen in its liquid state will take up less space. It can also be stored at a lower pressure than when it's in its gaseous state.

Explanation:

From the complete question, the liquid oxygen evaporates at a slightly higher The reason for this is due to the fact that they have similarly low attraction between molecules.

If we have 100ml of water at 0 degrees Celsius and it all freezes, how much energy did the water lose? Using the formula Hfus = Q/n

Answers

The amount of heat energy lost by the 100 mL of water when it all freezes is 33400 J

Data obtained from the question Volume of water = 100 mL Heat (Q) =?

How to determine mass of water Volume of water = 100 mL Density of water = 1 g/mL Mass of water =?

Mass = Density ×Volume

Mass of water = 1 × 100

Mass of water = 100 g

How to determine the heat Mass of water = 100 gHeat of fusion (ΔHf) = 334 J/g Heat (Q) =?

Q = m × ΔHf

Q = 100 × 334

Q = 33400 J

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Please help!!!!!!!!!!!!!!!!!!!!!!!!
Need help ASAP.

Answers

Based on the equation of the reaction and the limiting reactant of the reaction, molarities of the ions are determined from the amount in moles of excess reactants and soluble products formed.

What is the limiting reactant in the reaction?

The limiting reactant is he reavtant that is used up in the reaction after which the reaction stops.

The limiting reactant is obtained from the mole ratio of the reactants in the equation of the reaction.

Equation of reaction is given as follows:

3 AgNO3 (aq) + Na3P (aq) ----> Ag3P (s) + 3 NaNO3 (aq)

Molar mass of AgNO3 = 170 g/mol

Molar mass of Na3P = 100 g/mol

Molar mass of Ag3P = 355 g/mol

Molar mass of NaNO3 = 85 g/mol

Mass of AgNO3 reacting = 83.4 g

Moles of AgNO3 reacting = 83.4/170 = 0.49 moles

Mass of Na3P reacting = 62.9

Moles of Na3P reacting = 62.9/100 = 0.629 moles

Moles ratio of AgNO3 to Na3P = 3 : 1

Mole rational of AgNO3 and NaNO3 1 : 1

Based on the mole ratio;

AgNO3 is the limiting reactant while Na3P is in excessMoles of Na3P left over is 0.629 - (1/3 × 0.49) = 0.465 moles0.49 moles of NaNO3 are formed

At the end of the reaction, molarity of the ions are as follows:

Molarity of Na+ = {0.49 + (3 × 0.46)}/1.71

Molarity of Na+ = 1.094 M

Molarity of P^{3+} = 0.465/1.71

Molarity of P^{3+} = 0.272 M

Molarity of NO3^{-1} = 0.49/1.71

Molarity of NO3^{-1} = 0.286 M

Therefore, molarities of the ions are determined from the amount in moles of excess reactants and soluble products formed.

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zz. Compound A is crystalline, has a high melting point, and is more conductive when dissolved. Compound B is highly conductive and can be hammered into different shapes. Compound
Cis not highly conductive and is a gas. Which of these compounds is covalent?
compound A
compounds
compound
Nane at these compounds is covalent

Answers

Answer:

Compound C is covalent.

Explanation:

Among the properties of a covalent compound is that it has poor conductivity and could possibly be a gas at room temperature.

12. You want to create a 0. 55M Potassium Chloride solution. You mass 3. 00 grams of Potassium chloride

How much water is needed?

Answers

I suppose that you want to produce a 0.25 M solution of KCl

You do not want tp produce 0.25 mol of KCl.

Molar mass KCl = 39.1 + 35.45 = 74.55 g/mol

Mass of 0.25 mol KCl = 0.25 mol * 74.55 g/mol =18.64 g

To produce a 0.25 M solution of KCl = 18.64 g would require a solution volume of 1.0 L or 1000 mL

You have only 5.00 g ( NOT 5.00 gm) of KCl

Volume of solution required = 5 g / 18.64 g * 1000 mL = 268 mL solution

You dissolve the 5 g KCl in some water and then make up the final solution volume to 268 mL

This does NOT mean that you dissolve the 5 g KCl in 268 mL water .

2. Which statement is TRUE about ionic compounds?
A. In an ionic compound, the positive ion is the cation, the negative ion is the anion, and the cation
is always named first.
B. In an ionic compound, the positive ion is the cation, the negative ion is the anion, and the anion
is always named first.
C. In an ionic compound, the positive ion is the anion, the negative ion is the cation, and the anion
is always named first.
D. In an ionic compound, the positive ion is the anion, the negative ion is the cation, and the cation
is always named first.

Answers

Answer:

I think it's c I hope this helps

How long does sucrose take to decompose?

Please need help with that!

Answers

after >50 h of holding at 120 °C in a sealed pan, is not surprising, as this condition is above the melting temperature of fructose (a possible first decomposition product), and there were water and impurities

Answer:

> 50h of holding at 120 °C in a sealed pan

Explanation:

The loss of crystaline structure of sucrose was reported at various temperatures, but decompose.

List five factors that can affect levels of dissolved oxygen in water:

Answers

Answer:

Aquatic life

Elevation

Salinity

Temperature

Explanation:

Aquatic life- animals living in water use up dissolved oxygen.

Elevation- the amount of oxygen in elevation increases.

Salinity- Salty water holds less oxygen than fresh water.

Temperature- cold water holds more dissolved oxygen than warm water.

True or false: water is weird. Normally the solid form of a substance is more
dense/compact than the liquid form. When water freezes it forms
crystalline structures that make the molecules spread out causing ice to be
less dense than water and float. This is true of all substances.

Answers

Answer:

this would be true friend :)

Explanation:

for density, it generally goes solids, liquids, then gas in order from most dense, to least dense.

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Round the mmHg readings to the nearest whole number. Round the kPa readings to the nearest tenth. Round the atm readings to the nearest hundredth. Convert a pressure of 2.29 atm to ____ mm Hg.

Answers

The pressure of 2.29 atm  can be converted to [tex]1740.4 mm Hg.[/tex]

What is conversation?

Conversation is a way of writing a value in another unit, it helps to reduce large values by using a unit.

It should be noted that 1 atm. =760.0 mm Hg

We were given 2.29 atm, the we can convert it to  mm Hg. as;

[tex][ 2.29 atm* 760.0 mmHg / atm.][/tex]

= 1740.4 mm Hg.

Therefore, The pressure of 2.29 atm  can be converted to [tex]1740.4 mm Hg.[/tex]

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How many moles are in 79.85 g of Iron (III) oxide?

Answers

Answer:

For Fe, it's 55.845 g/mol. So 7.85 / 55.845 = 0.141 mol.

ohesion between water molecules contributes to __________ which allows the molecules to stick together and resist outside forces.

Answers

Answer: I believe the answer is surface tension :)

PLS ANSWER ME QUICK!!

CaO mass is 25 grams
CO2 volume is 144 liters
CaO + CO2 = CaCO3
what is the mass of CaCO3?​

Answers

Answer:

100.09 amu is the answer.

Answer:

45g

Explanation:

first we will find out which is the limiting reactant (hope you know how to find it)

Cao is the limiting reactant

so

we will find the number of moles of cao which is 0.45 mol

as according to the equation cao and caco3 have ratios 1:1 so both will have the same no. of moles

then by multiplying 0.45mol by 100 (mr of caco3) we will get the mass of caco3 which is 45g

Ancient
grew to 40 m, but are smaller today.

Answers

Answer:

Club mosses

Explanation:

hope this helps

In the kinetic molecular theory of gas behavior, the assumption is made that gas molecules:.

Answers

Answer:

In the kinetic molecular theory of gas behavior; the assumption is made that gas molecules move with a kinetic energy equal to their centigrade temperature_ move rapidly in random directions: are close together in their container which exerts pressure_ are attracted to each other by strong forces.

Explanation:

All of the following are true about scientific theories, except:
O A theory is an explanation of why
something happens.
O Theories must have been extensively
tested.
O A theory can be the result of one
scientific investigation.
O Theories are based on many
observations.

Answers

I think it’s the 3 one

formation of a solid, formation of a gas, and a color change can also occur during some physical changes. give examples of physical changes that could produce these clues. what evidence suggests that the changes you observed in test tubes 1-3 were, in fact, chemical changes

Answers

Answer:

Examples of these physical changes are melting ice-cream, or boiling water as well as freezing it. Adding dye to water is also a physical change since the chemical compounds remain the same, it is only the physical appearance that changes.

Possible reasons for chemical changes are the formation of a precipitate (solid), or formation of gas (bubbling) as well as release of heat or light or release of odor.

Which diatomic molecule or ion has the shortest bond length?

Answers

Explanation:

The shortest bond distance is at N2 due to its high bond order of 3. From N2 to F2 the bond distance increases despite the fact that atomic radius decreases.

H₂ is the diatomic molecule or ion that has the shortest bond length.

What are diatomic molecules?

Diatomic atoms are those atoms which are composed of two atoms that are joined by a chemical bond.

H₂ is the simplest diatomic molecule is this.

It is diamagnetic and has only two molecular orbitals (g and u), two electrons, and a bond order of one.

It has a 74 pm bond length.

Thus, H₂ is the diatomic molecule or ion that has the shortest bond length.

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correct answer is A
a detailed explaination would be appreciated

Answers

Answer:

yh correct answer is A

Explanation:

the reason is because

How and Why did the Nazis dehumanized the Jews?

Topic sentence:


Text evidence:

Conclusion:
(Can someone help me out pls)

Answers

Answer:

Its because Hitler thought that there beliefs were trasha dn thought that these humans were worthless so he went out of his way to "DEHUMANIZE" them.

Explanation:

HELP1!!!!!!!!!!!!!!!!!!!!!!!!!!!111

Answers

Answer:

I believe c

Explanation:

On the moon, there is no air resistance. What forces (F) are acting on the hammer and
feather as they fall? How do you know?

Answers

Answer:

Gravitional Force

Explanation:

Every planet has a gravitational pull which attracts all objects; the moon is no exception. It says forces in the question but I know for sure gravitational force is apart of it.

Hello people ~
Water cannot be used as a fire extinguisher to put out –

A. Burning charcoal

B. Burning cloth

C. Burning oil

D. Burning wood​

Answers

Answer:

C. Burning oil

Explanation:

Water cannot be used as a fire extinguisher to extinguish the flames of burning oils such as gasoline, petrol, or diesel. Because oil is lighter than water, it floats on top of it and cremates. Furthermore, as the water spreads and carries the oil with it, the fire spreads over a larger area.

I am joyous to assist you at any time.

Answer:

Burning oil

Explanation:

oil has lower density than waterAs water has higher density it will sink down and oil will be over it .So it can't control the oil related fire
Other Questions
Hannah travels 6 times as many minutes to work as Raoul does. Together,they travel for 63 minutes. How many minutes does Hannah travel? Drawa model and write an equation to solve. Before Congress sends a law to be signed by the President, both the House and the Senate must vote to approve the law. What is this an example of?A. federalist governmentB. Bill of Rights provisionsC. a check on each bodyD. Congressional oversight La chica ______ ejercicio por las maanas. (Hacer). El chico ______ para llegar a ser un profesional. (estudiar). Yo ______ algo antes de irme a la escuela. (comer). Nosotros _______ tarde por estar distrados. (llegar). El es muy _________ para mi. (?) Read the excerpt from The Odyssey.Now Zeus the lord of cloud roused in the northa storm against the ships, and driving veilsof squall moved down like night on land and sea.The bows went plunging at the gust; sailscracked and lashed out strips in the big wind.We saw death in that fury, dropped the yards,unshipped the oars, and pulled for the nearest lee:then two long days and nights we lay offshoreworn out and sick at heart, tasting our grief,until a third Dawn came with ringlets shining.Then we put up our masts, hauled sail, and rested,letting the steersmen and the breeze take over.Which elements of epic poetry are shown in this excerpt? Select three options.supernatural elementsan invocation of a musea difficult journey with trialsrhyme and repetition of wordsimportant historical eventsa hero showing perseverance Deondre drops a nickel from a balcony thatis 125 meters in the air. The functiony = -512 + 125 can be used to represent y, theheight of the coin in meters after t seconds.Write and solve an equation to find the time itwill take for the coin to hit the ground. how is crohn's disease or ulcerative colitis treated Which person believed that only a powerful government could ensure an orderly society?Group of answer choicesA. VoltaireB. John LockeC. Adam SmithD. Thomas Hobbes REM sleep is referred to as a __________ - it's deep sleep so it seems like there should be low brain activity, but in fact, the brain is very active, almost like you're awake. perspectivecontinuumparadoxconjunction Christianity factsneed for my work50 point + Brainliest Express the following ratio: 18 inches to 2 feet in its simplest form. Hint: 1 feet = 12 inches Which disorder is underdiagnosed and acts as both an independent risk factor for cardiovascular disease (CVD) and an aftereffect of CVD diagnosis Hello, I don't mean much, but what are the signs and symptoms of cholera????? Find the mean of the data.Pls help ASAPPPP Write an expression for the area of square 4 by combining the areas of the four triangles and the two squares. Read the original and improved research questions.Original: What is the relationship between natural resources and the Industrial Revolution.Improved: How did coal contribute to the Industrial Revolution in Pittsburgh in the 1880s?Which of the basic question words helped improve this research question? Select four options.howwhatwhenwherewhy Which created a challenge to soviet control over poland in 1980? question 14 options: the mujahidin helsinki groups nato solidarity Did I do this right?If not can you tell me what I did wrong?And please hurry, I need to get this done a dentist's office and parking lot are on a rectangular piece of land. The area (in square meters) of the land is represented by x^2 + x = 30 a. write a binomial that represents the width of the land b. find the area of the land when the length of the dentists' office is 20 meters what are the chromosomes of an animal Which sentence BEST summarizes Clarissa Dalloway's feelings about London, as revealed in the selection from Mrs. Dalloway? A. She loves London's people, vehicles, noise, and movement.B. She believes that London is too noisy and crowded for her taste.C. She pities the poor and miserable-looking people she sees in the city.D. She ignores people in the city who are not of her social class because she is a snob