1. 2H2 + O2  2H2O a.) How many moles of H2 would be required to produce 8.21 moles of water?

b.) What mass of H2O is formed when H2 reacts with 57 g of O2?

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

No copying 15 pts how does a free-body diagram tell you about the net force on an object?