Question

Box 1

Answer 1

10g

Explanation:

Box 1, Mass of A = 10g

Box 2, Mass of B = 5g

Box 3, = 1A + 1B

Unknown:

Mass of B that would combine with mass of 20g of A

Solution:

   Mass ratio of A to B:

   $\frac{mass of A}{mass of B}$ = mass ratio

           $\frac{10}{5}$ = mass ratio

        The mass ratio of A to B = 2: 1

Now, number of B that will combine with 20g of A;

       

           $\frac{mass of A}{mass of B}$ = mass ratio

               $\frac{20}{mass of B}$ = $\frac{2}{1}$

                     Mass of B = 10g

10g of B would combine with 20g of A

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Answer 2

Answer:

its 10 thats al i got

Explanation: