which of the following substances is synthetic

what property is shared by all matter

in a chemical change:

what is the density of a material that has a mass of 20 grams and a volume of 12 ml?

in the compound H4O6 the ratio of hydrogen to oxygen is

which of the following statements is true

when sodium combines with chlorine, which compound is formed

aluminum's ability to be rolled into thin sheets is evidence that it is

In a physical change:

which of the following is true about all natural elements?

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