What mass of calcium hydroxide is formed when 10.0 g of calcium oxide reacts with 10.0 g of water?
CaO + H2O → Ca(OH)2

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.