Your original sample of Manganese-56 is 20.0 mg. How much is left after 3 half lives? Remember to round to the correct number of significant figures and use units

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

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.

What is the molar mass of a gas that has density of 2.054 g/l