Do you need more ice to cool Diet Coke or regular Coke? Why? ANSWER QUICK PLS

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

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers