A copper sulfate solution contained 0.100 moles of copper sulfate dissolved in 0.500 dm3 of water.
Calculate the mass of copper sulfate in 30.0 cm3 of this solution.
Relative formula mass (Mr): CuSO4 = 159.5

Different isotopes indicate that an element will have different numbers of

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.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.