Chem test retake

Reaction 2 occurs when an excess of 6 M HCl(aq) solution is added to 100 mL of NaOCl(aq) of unknown concentration. If the reaction goes to completion and 0.010 mol of Cl2(g) is produced, then what was the molarity of the NaOCl (aq) solution?

0.1 M

When a student adds 30mL of 1 M HCl to .56g of powdered Fe, a reaction occurs according to the equation above.

0.22 LH3

When the equation for the reaction represented above is balanced and all coefficients are reduced to the lowest whole number terms, the coefficient for O2(g) is C3H8+O2 = 4H2O(g) + 3CO2(g)

5

Which of the following is the balanced net ionic equation for the formation of the precipitate?

Ag+(aq) + Cl-(aq) Balanced equation AAAGH

If equal masses of the following compounds undergo complete combustion, which will yield the greatest mass of CO2?

Benzine

The exothermic process represented is best classified as 2H2O(l) = 2H2O(l) + O2(g)

Chemical, covalent bonds are broken NO ENTROPY

The diagram above represents H2(g) and N2(g) in a closed container. Which of the following diagrams would represent the results if the reaction shown below were to proceed as far as possible? N2(g) + 3H2(g) = 2NH3(g)

Diagram with 2 free floating N2

For the dissolution of HCl in water represented above, which of the following pairs includes the Brønsted-Lowry bases?

H20(l) and Cl-(aq)

Choose the diagram which represents (Diagram including free floating Na and Cl molecules)

Look for free-floating Na molecules with bundled up Ag and Cl on the bottom (precipitate)

Which one of the following is the conjugate acid of NH2-

NH3

Which one of the following best describes the change that takes place immediately after the CH3(l) s introduced into the previously evacuated vessel?

Physical change, no covalent bonds broke, just something being overcome

In which of the following species does sulfur have the same oxidation number as it does in H2SO4?

SO2CL2 Sulfur should be with oxygen