please help! i dont get it, i will give a big thumbs up!

oh also i forgot to mention that its a double replacement reaction

precision measurements Observe the reaction 1. I have given you the reactants, you must predict the products that you made and balance the equation. NaOH + HCI- 2. For each of the following decomposition reactions, predict the product and then balance the equation HI + Pb(OH)2 HgOH H3PO4 - HCI + AgOH- HNO3 + Fe(OH)2 3. Explain how you predicted the product for the reactions above. 4. Write an acid base reaction of your own and then balance it. (Do not use the ones above) 5. If you started with 40 grams of NaOH how much NaCl did you make