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Bad White [126]
3 years ago
6

During which stroke of a four-stroke internal combustion engine is work done to the system of gases?

Chemistry
1 answer:
lapo4ka [179]3 years ago
8 0
A, Compression
Compression of a gas always requires work
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Acetic acid (HC2H3O2) is the active ingredient in vinegar. Calculate the mass percent composition of O in acetic acid.
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Explanation:

Step 1: Given data

Acetic acid it's molecular formula is HC2H3O2. This means it consists of 3 elements Carbon, Hydrogen and oxygen.

Step 2: the molar masses

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