A chemical substance that reduces the amount of activation energy that is needed for a reaction to happen

(a)  

A protein or RNA molecule that speeds up metabolic reactions without being permanently changed or destroyed

(a)  

A chemical reaction in which a reactant loses one or more electrons becoming more positive in charge

(a)  

A chemical reaction in which the reactant gains one or more electrons becoming more negative in charge

(a)  

An attractive force that holds molecules of a single substance together

(a)  

The attractive force between two particles of different substances

(a)  

substances are uniformly distributed in another substance

(a)  

A substance dissolved in a solvent

(a)  

A substance in which the solute is dissolved

(a)  

A solution in which the number of hydronium ions (H3O+) is greater than the number of hydroxide ions. Increased amounts of H+

(a)  

A solution that contains more hydroxide ions(OH-) than hydronium ions. Less H+ more OH-

(a)  

A solution that contains more hydroxide ions(OH-) than hydronium ions. Less H+ more OH-

(a)  

Chemical substance that neutralizes small amounts of either an acid or a base added to a solution

(a)  

Anything that takes up space and has mass

(a)  

the amount of matter an object has

(a)  

substance that cannot be broken down chemically into simpler kinds of matter

(a)  

simplest particle of an element that retains all of the properties of an element

(a)  

makes up the bulk of the mass of the atom. Contains protons and neutrons

(a)  

positively charged subatomic particle located in the nucleus

(a)  

subatomic particle with no charge found in the nucleus

(a)  

negatively charged subatomic particle surrounding the nucleus

(a)  

Atoms of the same element with a different number of neutrons

(a)  

made up of atoms of two or more elements in fixed proportion

(a)  

forms when two atoms share one or more pairs of electrons

(a)  

simplest part of a substance that retains all of the properties of that substance and can exist in a free state

(a)  

an atom or molecule with an electrical charge

(a)  

attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another

(a)  

one or more substances change to produce one or more different substances

(a)  

found on the left side of a chemical reaction. Substances changed in a reaction.

(a)  

found on the right side of a chemical reaction. Substances produced in a reaction.

(a)  

the amount of energy needed to start a reaction

(a)  

power of hydrogen. Measures how much or how little H+ in a solution

(a)  

energy releasing reaction

(a)  

energy absorbing reaction

(a)  

specific reactant an enzyme acts on

(a)