When of a certain molecular compound X are dissolved in of formamide , the freezing point of the solution is measured to be . Calculate the molar mass of X.

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

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

The number at the end of an isotope’s name is the number.