The molar mass of strontium (Sr) is 87.62 g/mol. Calculate the number of atoms in a 67.5 mg sample of Sr.

What semimetal can form four single covalent bonds.

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

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?