Indicate what type, or types of reaction ech of the following represents:
(a)ca + br2 -> cabr2
(b)ca(oh)2 + 2hbr -> cabr2 + 2h2o
(c)c6h12 + 9o2 -> 6co2 +6h2o

For a: The reaction is a type of synthesis reaction.

For b: The reaction is a type of double displacement reaction

For c: The reaction is a type of combustion reaction.

Explanation:

The given chemical reaction is:

The above reaction is a type of synthesis reaction because calcium and bromine are combining in their elemental state to form a calcium bromide compound.

The given chemical reaction is:

The above reaction is a type of double displacement reaction because here exchange of ions takes place.

The given chemical reaction is:

The above reaction is a type of combustion reaction because a hydrocarbon is reacting with oxygen gas to produce carbon dioxide and water molecule.

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