Calculate the number of moles in 21.5g of calcium carbonate

If the equilibrium concentrations of products are much greater than those of reactants in this system, what would be the magnitude of the equilibrium constant, K,? K 1

What is the charge on an electron? O-1 O 0 O + 1 O + 2

A cube of some rock weighs 6 grams, and a same-sized cube of water weighs 2 grams. What is the specific gravity of this rock?

How do acids and bases affect the quality of freshwater sources?

Using oxidation and reduction half-reactions, balance the skeletal equation cl2o7 (g) + h2o2 (aq) → clo - 2 (aq) + o2 (g) of the production of chlorite ions from dichlorine heptoxide. the reaction takes place in a basic solution.

If 125 mL of a 1.1 M glucose solution is diluted to 500.0 mL, what is the molarity of the diluted solution? Express your answer using two significant figures.

What do you chemically call water?

Can beryllium be broken down by chemical change?

What is the total number of atoms in this formula? NaHCO3

An object was measured by a worker as 14.6 cm long, however, the manufacturer specifications list the length of the object at 14.4 cm. What is the percent error in the workers measurement