Question

which reaction represents a synthesis reaction?
○ ab+cd -> ad+cb
○ a+b -> ab
○ ab -> a+b
○ a+bc -> ac+b
question 2
1 pts
in the reaction zn+2hcl → zncl₂+h₂, what type of reaction is occurring
○ single replacement
○ combustion
○ double replacement
○ synthesis

Explanation:

• For the first question: A synthesis reaction is when two or more reactants combine to form a single product. The general form is \(A + B

ightarrow AB\).

• For the second question: In a single - replacement reaction, one element replaces another in a compound. The general form is \(A+BC

ightarrow AC + B\). In the reaction \(Zn + 2HCl
ightarrow ZnCl_{2}+H_{2}\), zinc (\(Zn\)) replaces hydrogen (\(H\)) in hydrochloric acid (\(HCl\)).

Answer:

• First question: \(A + B

ightarrow AB\)

• Second question: Single Replacement