Download CH ch1 vocab

South Lake HS – Honors Chemistry
Matter and Change
Name ______________________
Quiz on ___________________
Chapter 1 Vocabulary
1. Atom – the smallest unit of an element that maintains the chemical identity of that
element.
2. Element – a pure substance that cannot be broken down into simpler, stable substances
and is made of one type of atom.
3. Compound – a substance that can be broken down into simple stable substances; made
from the atoms of two or more elements that are chemically bonded.
4. Physical Property – a characteristic that can be observed or measured without changing
the identity of the substance.
5. Chemical Property – a substance’s ability to undergo changes that transform it into
different substances.
6. Reactants – the substances that react in a chemical change.
7. Products – the substances that are formed by a chemical change.
8. Mixture – a blend of two or more kinds of matter, each of which retains its own
identity and properties.
9. Solution – homogenous mixtures; have the same proportion of components throughout.
10. Pure Substance – has a fixed composition and every sample has the same
characteristic properties.