Which is a physical property of the element magnesium?

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis