Chemistry, 22.07.2019 16:00 bayleeharris8p78txa
One milliliter of an unknown liquid contains about 20 drops. one gram of this liquid contains 3.34 x 10^22 molecules. how many molecules are in one drop of the unknown liquid? (density = 1.212g/ml)
Answers: 1
Chemistry, 22.06.2019 03:30
Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?
Answers: 3
Chemistry, 22.06.2019 09:30
Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump
Answers: 2
Chemistry, 23.06.2019 06:30
Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.
Answers: 1
One milliliter of an unknown liquid contains about 20 drops. one gram of this liquid contains 3.34 x...
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