In the following reaction, 2H2(g) + O2(g) --> 2H2O(g), how many moles of oxygen would be required to produce 5.76 moles of water?

2.88

Explanation:assume oxygen as O2, then 1 mole O2 = 2 moles H2O

so 2.88 moles O2

Place the palm of your hands together and slowly rub them. You will not notice much of a temperature change. As you move your hands back-and-forth against each other at a more rapid pace you will notice the more friction you place on your hands the more the temperature increases. It’s also like Starting a fire with sticks using friction.