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Science Unit B Ch. 2 Changes in Matter Crossword
Down
:
1) the change of state from a gas to a liquid
2) arrangement of symbols that shows both the kinds and number of atoms in a compound
3) a chemical reaction in which more energy is given off than is taken in
5) substance that undergoes a chemical reaction often by combining with another substance
9) a process in which an acid and a base react to produce a salt and water
10) a compound that releases hydrogen ions in water (H+)
11) a substance that changes color at a certain range of pH values
14) a compound that releases hydroxide ions when dissolved in water (H+)
16) a substance that is dissolved
Across
:
4) a substance that is formed in a chemical reaction
6) a set of numbers between 0 and 14 used to measure the strength of acids and bases
7) the change of state from liquid to gas at the surface of a liquid
8) chemical reaction in which more energy is taken in than is given off
12) a solution with a SMALL amount of solute compared to amount of solvent
13) solution with a LARGE amount of solute compared to the amount of solvent
15) an arrangement of symbols and formulas used to show what happens during a chemical reaction
17) a substance that dissolves other materials
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