If energy is released, the reaction is exothermic. If energy is absorbed, the reaction is endothermic. Since heat is being absorbed in this reaction (to break down H2O into H2 and O), the reaction is endothermic.

3 0

3 years ago

A gas has an initial pressure of 120 kPa, a volume of 23 liters, and a temperature of 20°C. If the pressure is raised to 150 kPa

ladessa [460]

Answer:

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Explanation:

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7 0

3 years ago

I think it’s D but I’m not sure.. Please help!

alisha [4.7K]

Answer: I think it’s D?

Explanation:

7 0

3 years ago

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A sample of a substance containing only magnesium and chlorine was tested in the lab and was found to be composed of 74.5% chlor

chubhunter [2.5K]

Use a ratio to find out that x/190.2 = 74.5/100

hope this helps

8 0

3 years ago