Question

what do these two changes have in common?
an engine using gasoline to power a car
a slice of banana turning brown
select all that apply.
both conserve mass.
both are caused by heating.
both are caused by cooling.
both are chemical changes.
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Explanation:

Answer:

Both conserve mass, Both are chemical changes.

(Note: The options "Both are caused by heating" and "Both are caused by cooling" are incorrect. The engine using gasoline involves combustion (a chemical change, mass conserved), and a banana turning brown is oxidation (a chemical change, mass conserved).)