Which statement best relates an empirical formula with a molecular formula?
they are always different for the same compound.
subscripts of empirical formulas can be reduced.
molecular formulas can be determined from empirical formulas.
they both show the actual ratio of elements for a compound.

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

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

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?