How many moles of water (H2O) are present in a beaker containing 45.9 g H2O? Give your answer to the correct number of significant figures.

(Molar mass of water = 18.02 g/mol) 45.9 g H2O = mol H2O

Mixtures are made up of what substances.

Convert 1.5 mol Na to mass

Why don't the oceans simply reabsorb the water that evaporates?

What are two differences of a theory and a hypothesis?

What is the concentration of sodium chloride in the final solution if 25.34 mL of 0.113 M BaCl2 completely reacts and the total volume of the reaction is 110.4 mL, given the reaction: BaCl2 (aq) + Na2SO4 (aq) → BaSO4 (s) + 2NaCl (aq)

A gas tank holds 20000 liters at 850 torr. If the temperature remains constant, what will the volume, in L, of the gas be at standard pressure, 760 torr?

Which Group (column on the Periodic Table) is the least soluble?

When ironing clothes, the primary method of heat transfer is A) conduction. B) convection. C) insulation. D) radiation.

What type of process occurs when solidified wax is converted to liquid wax on heating? endothermic exothermic decomposition reversible disintegration

Density is not a physical property of mass. True False