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I just need a clarification please for me I see they’re synthesis I want to be clear P4 + 6 H2 = 4 PH32 H2 + O2 = 2 H2O

Sagot :

In a synthesis reaction, two or more reagents react to form a new product. In decomposition reactions, a single reagent is separated into two or more new products.

According to the given equations:

Phosphorus and hydrogen react to form a new product which is phosphane.

It means that the first is a synthesis reaction.

Hydrogen and oxygen react to form a new product which is water.

It means that the second is also a synthesis reaction.