Basrd on the mass ratio of the elements given, 10 g of B is needed to form compound AB2.
How many grams of B are needed to form compound AB2?
The equation of the reaction of a fixed mass of A with B to form AB id given below:
From the data provided, 5 g of A reacts with 5 g of B to form AB.
Then, to form the compound AB2:
mass ratio of A and B is 1:2
5 g of A is needed
2 ×:5g of B is needed = 10 g of B.
Therefore, 10 g of B is needed to form compound AB2.
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