Question

two molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product.

Answer 1

For two molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product. A = 2A + 3B → 5C is the correct representation of the reaction.

The five molecules of C will result from a reaction between the two molecules of A and the three molecules of B.

2A + 3B   →   5C

the other options are incorrect, Because,

B = A₂ + B₃  →   C₅

One molecule of C₅ is produced when one molecule of A₂ and one molecule of B₃ combine in this reaction.

C = 2A + 5B   →  3C

In this reaction, two molecules of A and five molecules of B combine to produce three molecules of C.

D = A₂ + B₃  →  C₃

In this reaction, one molecule of C₃ is produced by the combination of one molecule of A₂ and one molecule of B₃.

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(complete question)

Two molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product.

Which equation is the correct representation of the reaction?

2A+3B→5C

A₂+B₃→C₅

2A+5B→3C

A₂+B₃→C₃