write balanced chemical equation with state symbol for the following reaction sodium hydroxide solution react with hydrochloric acid solution to produce sodium chloride solution and water

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?