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algol13
3 years ago
14

The energy exchange with the environment during a chemical reaction is called the heat of reaction.

Chemistry
1 answer:
JulijaS [17]3 years ago
6 0
This is a hard question
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The difference between the density of gas and the density of liquid
eduard

The molecules of a liquid substance are closely packed together to each other. So as a result, liquids are denser than gases.

<h3>What is the difference between the density of liquid and gas?</h3>

A mass of gas will have a much larger volume compared to the same mass of liquid. This is because it has a much lower density. The density of gaseous oxygen is 0.0014 g/cm3. Density is ρ=Mass Volume. We know that gas will uniformly occupy more space than liquid whatever volume is available to it. On the other hand, solids and liquids, are closely packed as compared to gas and are high-density materials where ρ is relatively constant.

So we can conclude that the molecules of a liquid substance are closely packed together with each other. So as a result, liquids are denser than gases.

Learn more about Density: brainly.com/question/1354972

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1 year ago
A space probe identifies a new element in a sample collected from an asteroid. Successive ionization energies (in attojoules per
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Ionization energy (IE) is the amount of energy required to remove an electron.

If you observe the IEs sequentially, there is a large gap between the 2nd and 3rd. This suggests it is difficult to remove more than 2 two electrons. Elements that lose two electrons to become more stable are found in the Group 2A (2 representing the number of electrons in the outermost valence shell).

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3 years ago
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A pharmaceutical company states in advertisements that their new ScarX Cream is guaranteed to erase scars in one month.
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Answer:d

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Which statements are true about Figure I and Figure II below? (Check all that apply)
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Both figures are mixtures,

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mezya [45]
1. Rapid combustion - <span>used in engines and rockets souring. Large amount of energy produced.
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3 years ago
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