Hey! Could someone help? *spam answers not tolerated* Don't answer if you don't know, and thanks a ton if you do! Have a good day!

What does the salinity of sea water represent?

the volume of salt in the ocean
the mass of salt in the ocean
the concentration of salt dissolved in the ocean
the concentration of all dissolved chemicals in the ocean

In a spacecraft, the following reaction occurs: co2(g) + 2lioh(s) -> lico3(s) + h2o(i) (i attached picture of equation) how many liters of carbon dioxide will 4 moles of lithium hydroxide (lioh) absorb? (one mole of any gads occupies 22.4 l under certain conditions of temperature and pressure. assume those conditions for this equation.) 45l 6.0l 3.0l 34l

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

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