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Unit 2 Review Bio

Across
If the amount of acid is more than the amount of base
Two atoms bonded together that are different elements
H3O+
The number in the top corner that tells you how many protons there are
The substance that was broken down in a solution
The amount of energy needed to start a reaction
Negatively charged particles
Compound that forms extra hydronium ions
Neutrally charged particles
Substances made up of atoms that have the same number of protons
The smallest thing anything can be broken down into
If the amount of acid is less than the amount of base,
Down
The number at the bottom that tells you the mass of the atom
Atoms or groups of atoms that gain or lose electrons
The two subatomic particles that make up the nucleus of an atom
Elements that have different numbers of neutrons
OH-
The substance that prevents pH change
Bonds that share electrons
If the amount of acid and the amount of base is equal
A group of atoms that are held together by covalent or ionic bonds, the atoms can be the same element or different elements
The substance that did the breaking down in a solution
Bonds that form due to oppositely charged ions
Positively charged particles
Anything that takes up space and has mass is