Answer
16g
Percent by mass= mass of solute/mass of solution * 100
Explanation: work out the equation
Answer:
2FeBr3 + 3Na2S ➡️ Fe2S3 + 6NaBr
Not sure about the last one, but I think the percent composition of zinc would be ~ 42.8232
When two plates push against each other shear stress will happem because they move in opposite directions. In this case the force of the stress pushes some of the crust in different directions. When this happens, a large part of the crust can break off, which makes the plate size smaller.