!30 Points!
Using your periodic table, how many protons does an atom of Zinc (Zn) have in its nucleus? Explain your reasoning. How many electrons would it have? Explain your reasoning. If zinc has 35 neutrons in its nucleus, what is its mass number? (Mass # = # protons + # neutrons). Please show your work.

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume