Bath salts such as epsom contain hydrate salts such as mgso 4 ·7h 2 o (magnesium sulfate heptahydrate). when heated, water is released as vapor and anhydrous mgso 4 remains. determine how many moles of vapor are released when 15.5 g of mgso 4 ·7h 2 o are heated. hint: include h 2 o when calculating the molar mass.

Which of the following are sources of revenue for media companies? a. direct sales to producers b. advertising and subscriptions c. online purchase d. capital investments

Write the overall equation for the reaction occurring in lithium battery?

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.