What does the law of conservation of mass mean during a chemical reaction?
A chemical reaction in which heat energy is given off.
A mixture that is evenly mixed; also called a solution.
A pure substance that is created by 2 or more elements chemically reacting and joining together.
The number attached to an element’s symbol in a chemical formula that cannot be changed or added is called a
If the reactants contain 12 carbon atoms and 4 oxygens atoms, what must be true of the products?
A material that increases the rate of a reaction by lowering the activation energy.
A mixture that is unevenly mixed.
A chemical reaction in which heat energy is absorbed.
When two elements in different compounds trade places.
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