Mg(oh)2
How many H atoms are there?
How many Mg?
What is the total number of atoms?

Which is an example of renewableenergy resource uranium ,wind, or natural gas

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?