Basics of Chemistry (Mini Unit) Flashcards
1
Q
matter
A
anything that occupies space and has mass
2
Q
element
A
substance that cannot be broken down into other substances by chemical reactions
3
Q
proton
A
particle with a single unit of positive electrical charge
4
Q
electron
A
particle with a single unit of negative electrical charge
5
Q
neutron
A
electrically neutral particle
6
Q
atomic number
A
of protons in an atom
7
Q
mass
A
measure of the amount of material in an object
8
Q
solvent
A
dissolving agent (such as water)
9
Q
solute
A
any substance that is dissolved (such as salt/sugar)
10
Q
what does the pH scale range from?
A
0 (most acidic) to 14 (most basic)
11
Q
what number on the pH scale is considered to be neutral?
A
7