The maximum amount of copper sulphate that can be dissolved in 45.0g of water at 70C is 20.0g. What is the solubility of copper sulphate at that temperature? ( In grams per 100g water) ​

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

Describe the interaction that occurs between two objects with the same electrical charge.

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms