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    Science: Chemistry Quiz
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Ice ____ because its density is less than liquid water. attract
Salt, sand, diamonds, and snowflakes are ____ solids. crystalline
Salts and sugars dissolve in water and thus are water ____. Fahrenheit
Blood, muddy water, soil, and granite are ____ mixtures. floats
All atoms of an element have the ____ number of protons. heterogeneous
Water freezes at 32° and boils at 212° ____. reversed
Positive and negative charges ____ each other. same
Unlike chemical changes, physical changes can be ____. soluble

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