Stoichiometry problems 1-5 with work in table form. Please. I tried and I can't understand this for my life. Thank you!!

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Mercury turns to a vapor at 629.88 k. how much heat is lost when 75.0 g of mercury vapor at 650 k condenses to a liquid at 297 k?