For the balanced chemical equation: 2 K + 1 MgBr2 → 2 KBr + 1 Mg

Answer the following questions:

If you produce 7 mols of KBr, how many mols of MgBr2 did you need?

If I have 2 moles of MgBr2, how much KBr can I make in moles?

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy