A single 250 gram serving of one sports drink contains
0.055 grams of sodium ions. What is the
concentration of sodium ions expressed
as % by mass?
2.2 x 10-4
2.2 x 102
2.2 x 10-2
2.2 x 10-4

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Adilute aqueous potassium nitrate solution is