It should remain constant because of the law of conservation of mass and because the flask is sealed no mass will escape
Answer:
Coal
Explanation:
Coal produces more pollution than any other energy source. While coal produces just 44% of U.S. electricity, it accounts for 80% of power plant carbon emissions. Burning coal leads to soot, smog, acid rain, global warming, and carbon emissions.
Answer:
C3H6
Explanation:
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