Answer:
Conservation of energy means that the total change of energy in any system is always equal to the total energy transferred into or out of the system.
In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change.
Answer:
condensation
Explanation:
when gases change to liqud it condenses.This occurs when the temperature is lowered
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