Answer:
24g
Step-by-step explanation:
mass of the product is 40g.
The mass of the first reactant is 16g
The mass of the second reactant = ?
Let the first reactant = A
Let the second reactant = B
Let the product = C
Equation of reaction;
A + B → C
16g 40g
The mass of B must be = 40 -16 = 24g