What type of chemical reaction breaks things down?

What kind of chemical reaction puts things together?

What kind of chemical reaction has one element replacing another element?

The small number that is lower and to the right of the element symbol is called the

If an elemental symbol does not have a subscript, you assume that the number is

The materials you start with in a chemical reaction are called the

The materials you end up with in a chemical reaction are the

Conservation of mass in chemistry tells us

The number in front of a chemical formula that tells how many molecules are in a chemical reaction is a

Symbols showing a chemical reaction is a

In the chemical formula: 2CO , the 2 is called the

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