Hey there, I have a Acid base titration lab due tmr and I don't understand these 4 questions can someone please help me out. ASAP I will really appreciate it

What is the formula that this ionic compounds could form sr2+p3-o2-

Summarize possible ways in which phases of matter could combine to form a solution.

Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal