Answer:
B
Explanation:
hope the picture helps you to understand:)
Mg S2 O3
.691 g of Mg is .284 mole
1.84 g of S is .5739 mole
1.365 g of O is .8531 mole you can see the ratio is ~ 1 :2 :3
What kind of control like scientific?
40 seconds chief just double it
