Flashcards in Unit 1 Deck (14)
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Element
A pure substance made up of the same type of atom
1
Atom
Smallest unit of matter
2
Molecule
Two or more atoms bonded together (they may be the same or different)
Ex: H2
3
Compound
A substance containing two or more different elements in a fixed ratio
4
Valence electrons
Electrons in the outermost shell involved in bond formation
5
Polar bond
Results when two different non metals unequally share electrons between them
6
Hydrogen bond
When one water molecule bonds to another molecule (weak bond)
7
Solution
Liquid consisting of uniform mixture of two or more substances
8
Solvent
Liquid (dissolving agent)
9
Solute
Substances dissolved
10
Cohesion
Water molecules stick to each other due to hydrogen bonding
11
Adhesion
Water sticking to other substances
12
Specific heat
Amount of heat a substance needs for a given increase in temperature
13
