A substance that undergoes a change in a chemical reaction is

In a balanced chemical reaction, the total mass of the products is always equal to the

When a chemical reaction and its reverse are occurring at the same time and at the same rate, the reaction has achieved

what happens in a chemical reaction

an enzyme is a special kind of catalyst that works

photosynthesis is an example of an(n) ____ chemical reaction in which plants use sunlight to make glucose and oxygen

Radicals react quickly to form covalent bonds with nearby substances because then have _________ available for bonding

A compounds ____ formula tells you how many of each type of atoms are in one molecule

In a chemical reaction the combined molar masses of the _____ equals the combined molar masses f the __________

The law of definite proportions states that a compound always contains the same _____ in the samed

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