Chalk is mostly calcium carbonate.Could chalk dust catch fire and burn in air?
A) Yes, the carbon in the chalk would burn.
B) Yes, calcium is a reactive metal that will burn.
C) No, the carbon in the carbonate ion is already in its highest oxidation state.
D) No, the manufacturer puts a protective coating on chalk so that it will not burn.
E) No, the ignition temperature is extremely high.
Correct Answer:
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