7.3 Flashcards
1
Q
Compounds
A
substance made up of two or more different types of atoms that have been joined (bonded) together
2
Q
Bonded
A
force that holds particles of matter, such as atoms, together
3
Q
Mixture
A
a combination of substances in which each keeps its own properties
4
Q
Hydrogen
A
the element with the smallest atom. By itself, it is a colourless gas and combines with other elements to form a large number of substances, including water. It is the most common element in living things.
5
Q
Oxygen
A
a gas in the air (and water) that animals need to breathe in; made up of particles with two oxygen atoms. Plants produce oxygen as part of photosynthesis.
