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An electron has an ____ charge and smaller mass than a proton.
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chemical
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Fats and oils are ____ because they are water insoluble.
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covalent
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Glass, rocks, oils, and plastics are water ____.
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graduated
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A ____ cylinder is better than a beaker for measuring volumes.
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hydrophobic
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Iron rusting, milk souring, and wood burning are ____ changes.
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insoluble
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A carbon dioxide (CO2, O=C=O) molecule has a ____ structure.
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linear
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Solid nonmetals are brittle, whereas metals are ____.
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malleable
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In water, the H atoms are joined to the O atom by ____ bonds.
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opposite
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