At what temperature (In K) will 3.5 moles of gas occupy 2.7 L at 1.5 atm? Also asks to identify the P, V, N, R, and T. If unknown then put "?"

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

Elements that do not have full outer electron shells will donate, share, or take electrons from other atoms. choose the items that have the correct binary ionic formula.

Can someone me with questions 12 and 13 plz.