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A carbon dioxide (CO2, O=C=O) molecule has a ____ structure.
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crystalline
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Salt, sand, and snowflakes are ____ solids (unlike wax).
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graduated
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The Na and Cl atoms in NaCl are joined by an ____ bond.
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hydrophobic
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Fats and oils are ____ because they are water insoluble.
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ionic
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All ____ molecules contain at least one carbon atom.
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linear
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A ____ cylinder is better than a beaker for measuring volumes.
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organic
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Sugar dissolving and ice melting are ____ changes.
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physical
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Acetone is a ____ liquid, because it readily evaporates.
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volatile
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