PLEASE HELP ASAP write balanced dissociation equation for each salt when it's dissolved in water

1. Al(NO3)3

2. (NH4)2SO4

3. Potassium chromate

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )

Which of the following is a physical property flammability heat of combustion solubility and toxicity