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3 years ago

12) Which particle has the most energy? A) ice B) water C) steam D) there is no difference in particle energy

Chemistry

2 answers:

sladkih [1.3K]3 years ago

6 0

C) Steam has the most energy.

Steam has more energy than Ice and Water because the particles in ice are close together, the particles in water flow more loosely than in a solid like ice and in steam they are very active.

I hope that helps u understand :)

quester [9]3 years ago

6 0

Answer: Option (C) is the correct answer.

Explanation:

Ice is a solid and it is known that particles in a solid are held by strong intermolecular forces of attraction. As a result, they have least kinetic energy.

Due to this solids have a definite shape and volume.

Water is a liquid and it is known that particles in a liquid are held by less strong intermolecular forces of attraction as compared to solids. As a result, particles of a liquid are able to slide past each other due to some kinetic energy.

Hence, liquids have no definite shape but they have fixed volume.

Steam is a gaseous state of a water and it is known that particles of a gas are held by weak intermolecular forces of attraction. Hence, particles of a gas have high kinetic energy and they tend to colloid more rapidly.

As a result, gases do not have definite shape but they occupy whole volume of a container.

Thus, we can conclude that out of the given options steam has the most energy.

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Assuming a car (with a 70-L) gas tank can hold approximately 50,000 (5.00 * 10^4) g of octane(C8H18) or 50,000 (5.00 * 10^4) g o

konstantin123 [22]

Answer:

- From octane: $m_{CO_2}=1.54x10^5gCO_2$

- From ethanol: $m_{CO_2}=9.57x10^4gCO_2$

Explanation:

Hello,

At first, for the combustion of octane, the following chemical reaction is carried out:

$C_8H_{18}+\frac{25}{2} O_2\rightarrow 8CO_2+9H_2O$

Thus, the produced mass of carbon dioxide is:

$m_{CO_2}=5.00x10^4gC_8H_{18}*\frac{1molC_8H_{18}}{114gC_8H_{18}}*\frac{8molCO_2}{1molC_8H_{18}}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=1.54x10^5gCO_2$

Now, for ethanol:

$C_2H_6O+3O_2\rightarrow 2CO_2+3H_2O$

$m_{CO_2}=5.00x10^4gC_2H_6O*\frac{1molC_2H_6O}{46gC_2H_6O}*\frac{2molCO_2}{1molC_2H_6O}*\frac{44gCO_2}{1molCO_2} \\\\m_{CO_2}=9.57x10^4gCO_2$

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3 years ago

since an element always has a different number of protons, the mass can indicate how many neutrons are in an isotope

elena-s [515]

Answer:

The number of protons is equal to the mass number of the element. Since an element always has a different number of protons, the mass can indicate how many neutrons are in an isotope. Atoms of the same element can have a different number of neutrons. There are three naturally-occurring isotopes of carbon.

Explanation:

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2 years ago

What type of wave it do the contractions of the snakes muscles make as a snake moves forward

Cloud [144]

Hello.

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Have a nice day

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3 years ago

Read 2 more answers

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Lapatulllka [165]

I think the correct answers are X2Y and X3Y, X2Y5 and X3Y5, and X4Y2 and X3Y, for the following reason:

If you look at the combining masses of X and Y in each of the two compounds,

The first compound contains 0.25g of X combined with 0.75g of Y
so the ratio (by mass) of X to Y = 1 : 3

The second compound contains 0.33 g of X combined with 0.67 g of Y
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Now, you suppose to prepare each of these two compounds, starting with the same fixed mass of element Y ( I will choose 12g of Y for an easy calculation!)

The first compound will then contain 4g of X and 12g of Y
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= 4 : 6
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3 years ago

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Lunna [17]

I
0.5
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3 years ago