When electricity flows through water, the water molecules split into molecules of hydrogen and oxygen gas. how many oxygen (o2) molecules are produced from the splitting of two molecules of water (h2o) if the balanced equation for the reaction is as follows? 2h2o 2h2 + o2 a. 4 b. 3 c. 2 d. 1

What are several ways to reduce the effect of friction

Which of the following compounds would be expected to have the strongest ionic bonds? a)the compound that has b)the largest ions with the greatest charge c)the compound that has d)the largest ions with the least charge the compound that has the smallest ions with the greatest charge the compound that has the smallest ions with the least charge

The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?