A student takes a measured volume of 3. 00 M HCl to prepare a 50. 0 mL sample of 1. 80 M HCl. What volume of 3. 00 M HCl did the student use to make the sample? Use M subscript i V subscript i equals M subscript f V subscript f. 3. 70 mL 16. 7 mL 30. 0 mL 83. 3 mL.

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

Which statement best describes what happens when molecular compounds melt

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?