Complete and balance the chemical equations for the precipitation reactions, if any, between the following pairs of reactants, and write the net ionic equations: a. pb(no3)2(aq) + na2so4(aq) → b. nicl2(aq) + nh4no3(aq) → c. fecl2(aq) + na2s(aq) → d. mgso4(aq) + bacl2(aq) →

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Type the correct answer in the box. spell all words correctly.what is the correct term for living the most sustainable life you can within your current circumstances? when your are being as sustainable as you can within your current lifestyle, you are said to be sustainability.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.