Unit 1 Chemical Reactions Vocab

Atoms

smallest unit of matter

chemical reaction

the process by which one or more substances change to produce one or more different substances

model

A representation of an object or event

product

A substance produced in a chemical reaction

property

Characteristic used to describe something

Reactant

A chemical substance that is present at the start of a chemical reaction

rearrange

to change the order or position of something

substance

A single kind of matter that is pure and has a specific set of properties.

scale

the relative size of things

boiling point

the temperature at which a substance changes from a liquid to a gas

chemical formula

letters and numbers showing the types and number of atoms that repeat to make up a substance

corrosive

able to cause damage

extended structure

A structure formed by repeating groups of atoms that link together in a large network.

fertilizer

a substance that provides nutrients to help crops grow better

melting point

the temperature at which a substance changes from a solid to a liquid

Molecule

a group of atoms joined together in a particular way