If a sample of pure silver contains 3.35 x 10^22 atoms of silver, how any moles of silver are in the sample?

17.9 mol

2.82 mol

0.180 mol

0.0556 mol

The pharmacy receives a prescription for 50 grams of 5% salicylic acid ointment. the pharmacy has a 30% salicylic acid ointment and petrolatum available.

How does atomic size change within groups and across periods?

If you put some sodium chloride (table salt) into a glass of water, what will happen?

To squeeze a gas into a smaller space

Os etapas que devem sem compridas para obter separadamente os componentes (a as substâncias) de uma mistura de água, sal e areia, são respectivamente : A) filtração e sifonação B) decantação e sifonação C) filtração e destilação simples D) catação e

What energy is a quarterback's arm before throwing a pass

Which atom can accommodate an octet of electrons but doesn't necessarily have to?

Heat is an exchange of internal energy from one system to another due to A. a temperature difference between the systems. B. one system being gas and the other being solid. C. the systems having the same temperature. D.

Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it? (Work: W = Fd) 0.5 m 2 m 250 m 750 m'

Lead (ii) sulfide (pbs) has a ksp of 3.0 * 10-28. what is the concentration of lead (ii) ions in a saturated solution of pbs? 1.7 * 10-14m 1.5 * 10-14m 3.0 * 10-14m