Chapter 6, review 1

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A chemical reaction is the process where atoms or groups of atoms in substances are reorganized to diff. substances

When a mixture changes color or heats up it proves that a physical reaction has happened

An ionic bond is formed when two atoms share electrons

All the elements in a period (across one period) on the periodic table have the same number of protons.

Substrates bind to an enzyme's active site.

Catalysts increase the rate of a reaction by increasing the net energy change of the reaction

Polar molecules are those with an equal distribution of charges

When atoms share electrons the form covalent bonds