The answer is wedge to your answer
Answer:
D. Two reactants combine to form one product
Explanation:
The definition of synthesis in chemistry is "the production of chemical compounds by reaction from simpler materials."
A is decomposition, B is DOUBLE replacement, and C is SINGLE replacement.
Because in difrent materials atoms are more compact or less compact.if they are less compact then it will be easear for them to move
c well actually I remember being tought this but I cant remember it 100