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In atomic theory, new substances are formed when the atoms of other substances are rearranged. In this kind of change, the total number of atoms is conserved.
An example of this is shown in the diagram below. There are six atoms both before and after the arrow.
Which statement below is also true of the rearrangement of atoms?
A.
The number of substances increases.
B.
The amount of matter decreases.
C.
The number of substances is conserved.
D.
The amount of matter is conserved.
