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Which example best describes a double displacement reaction?

The ions of two ionic compounds switch places and a gas is formed.

A compound reacts with oxygen to release a lot of heat.

One compound breaks down into two different compounds.

Two compounds combine to form one new compound.

Respuesta :

Answer:

The first one would describe it best

Explanation:

The second option sounds like a single displacement reaction

The third is a decomposition reaction

ANd the first is a combination reaction

Answer:

The first one ie: option A is the answer

Explanation :

none of the other answers make sense

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