26. classify each chemical equation as a combination/synthesis , decomposition, single replacement, double replacement, or combustion. a. pb(s) + hg2so4(s)  pbso4(s) +2 hg(l) b. nacl(aq) + agno3(aq)  agcl(s) + nano3(aq) c. 2 h20(l)2 h2(g) + 02(g) 27. find the molar mass of nitric acid (hno3). 28. avogadro’s number refers to a. the maximum number of electrons that all of an atom’s energy levels can accommodate b. the number of protons and neutrons that can fit in the shells of an atom’s nucleus c. the number of particles in one mole of a substance d. the number of particles in exactly 1.0 g of a substance 29. how many moles of oxygen atoms are in 1.5 moles of co2? (sc2c) a. 1 mol b. 1.5 mol c. 2 mol d. 3 mol 30. what is the mass of 0.28 mol of iron ?

What is limiting reactant? with examples

Predict the products of the following acid-base reactions, and predict whether the equilibrium lies to the left or to the right of the reaction arrow.part ao2-(aq)+h2o(l)< => express your answer as part of a chemical equation. identify all of the phases in your answer.o2-(aq)+h2o(l) < => oh-(aq)+oh-(aq)part bpredict whether the equilibrium lies to the left or to the right of the equation in previous part.h2o is a stronger acid than oh–, so the equilibrium lies to the right.h2o is a weaker acid than oh–, so the equilibrium lies to the left.h2o is a stronger acid than oh–, so the equilibrium lies to the left.h2o is a weaker acid than oh–, so the equilibrium lies to the right.part cch3cooh(aq)+hs? (aq) < => express your answer as part of a chemical equation. identify all of the phases in your answer.ch3cooh(aq)+hs-(aq) < => h2s(aq)+c2h3o2-(aq)h2s(aq)+c2h3o2-(aq)part dpredict whether the equilibrium lies to the left or to the right of the equation in previous part.ch3cooh is a weaker acid than h2s, so the equilibrium lies to the right.ch3cooh is a weaker acid than h2s, so the equilibrium lies to the left.ch3cooh is a stronger acid than h2s, so the equilibrium lies to the right.ch3cooh is a stronger acid than h2s, so the equilibrium lies to the left.part eno2-(aq)+h2o(l) < => express your answer as part of a chemical equation. identify all of the phases in your answer.no2-(aq)+h2o(l) < => part fpredict whether the equilibrium lies to the left or to the right of the equation in previous part.hno2 is a stronger acid than h2o, so the equilibrium lies to the right.hno2 is a weaker acid than h2o, so the equilibrium lies to the left.hno2 is a stronger acid than h2o, so the equilibrium lies to the left.hno2 is a weaker acid than h2o, so the equilibrium lies to the right.

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate