He statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of

a. conservation of matter.
b. atomic disintegration.
(c.) conservation of energy.
d. definite proportions.

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.

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules

How many grams of sodium chloride are in 250ml of a 2.5m naci solution