You are calling the telephone company to discuss your bill. Your expected wait time on hold is 20,000,000,000,000,000,000 fs.

(a) Convert this time to seconds and decide if you would be willing to wait this long.
(b) What is this length of time in minutes?
(c) What is this length of time in years?

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Describe the forces both attractive and repulsive that occur as two atoms move closer together.