Sarah heated 20 grams of liquid hydrogen peroxide until it was completely broken down into liquid water and oxygen gas. Which of these BEST
describes the total mass of water and oxygen that was produced?*

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?

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Which statement best explains the relationship between an area is geography and the temperature of its surface water