A graduated cylinder contains 17.5 mL of water. A metal cube is placed in the cylinder and the water level rose to 20.3 mL. The metal cube has a mass of 30 g. What is the density of the metal cube

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided