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Nikitich [7]
3 years ago
5

Which statement is true of a chemical change?

Chemistry
2 answers:
Andru [333]3 years ago
5 0
The appropriate answer is a. it involves a change in the molecular structure of the substance. A change in phase or state is referred to as a physical change. For example...liquid water freezing is a physical change because the state changes but solid water is still H20. Separating water into its constituent atoms, hydrogen and oxygen is a chemical change because the molecular structure of water is now non existent.
tatiyna3 years ago
4 0
The answer is c. There wouldnt be a process or a change to it
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For the conversions

I will start with pressure
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x =700kPa
x=700kPa/101.3kPa
x=6.91atm

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Volume
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x =50ml
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