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Lerok [7]
3 years ago
6

**CHEMISTRY!! PLEASE HELP ASAP!!**

Chemistry
1 answer:
Minchanka [31]3 years ago
6 0
Calcium = 1
Sulfur = 1
Oxygen = 4
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a student determined that it requires 106220 j of energy to vaporize 47g of water. is the student is right​
shusha [124]
<h2>Answer:</h2>

He is right that the energy of vaporization of 47 g of water s 106222 j.

<h3>Explanation:</h3>

Enthalpy of vaporization or heat of vaporization is the amount of energy which is used to transform one mole of liquid into gas.

In case of water it is 40.65 KJ/mol. And 18 g of water is equal to one mole.

It means for vaporizing 18 g, 40.65 kJ energy is needed.

So for energy 47 g of water = 47/18 * 40.65 = 106.1 KJ

Hence the student is right about the energy of vaporization of 47 g of water.

7 0
3 years ago
PLEASE ANSWER!!! Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate a
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D is the best choice. Those percentages, are giving you the information about how concentrated are the solutions.  As 0.015 is so concentrated, this solution will damage the structures more quickly

Explanation:

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3 years ago
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Arada [10]

Answer:

4 line graph

5 pictograph

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9 horizontal axis

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Can I please have brainliest ;)

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3 years ago
Water a combination of the elements hydrogen and oxygen, is an example of an
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Common Examples of the Law of Definite Proportions

Water, written as the chemical compound H20, is made up of atoms of hydrogen and oxygen. If one oxygen atom is combined with two hydrogen atoms, water is created.

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B . Changing the material that the fluids container is made of

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