Given the table below, what is the chemical formula for a compound between Rb and the nitrate ion NO3-1? nitrate ion NO3-1 phosphate PO4-3 sulfate SO4-2 acetate C2H3O2-1 ammonium NH4+1 chromate CrO4-2 carbonate CO3-2 dichromate Cr2O7-2 permanganate MnO4-1 sulfite SO3-2 RbNO 3 Rb(NO 3) 2 Rb 2NO 3 Rb 2(NO 3) 3

2h2s + 3o2 2so2 + 2h2o which option gives the correct mole ratios? h2s: so2 = 2: 2 and o2: h2o = 3: 2 h2s: so2 = 2: 3 and o2: h2o = 3: 2 h2s: so2 = 4: 4 and o2: h2o = 5: 4 h2s: so2 = 4: 6 and o2: h2o = 4: 4

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?

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -