1. Understand grams and mass. Grams are a unit of mass, or amount of matter. If you crush an object to make it smaller and denser, this will not change its ... 2. Understand milliliters and volume. Milliliters are a unit of volume, or amount of space. One milliliter of water, one milliliter of gold, or one milliliter ... 3. Learn why you need to know which substance you are converting. Since these units measure different things, there is no quick formula to convert between them ...
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