grade 12 Chemistry review

What is the major product when 2-methylprop-1-ene is treated with HBr at room temperature?

How many carbons are there in methyl butanoate

For the reaction: 2HI (g) <--> H2 (g) + I2 (g). If the Ksp is 0.020 and the Qsp is 0.34, the reaction will proceed which direction?:

The oxidation number of N in (NH4)3PO4 (ammonium phosphate) is:

When an electron falls to a lower energy level it:

Identify the reducing agent in the following chemical reaction. Cd + NiO2 + 2H2O → Cd(OH)2 + Ni(OH)2

Which of the following would you expect to have the highest boiling point? ethanol, ethyl ethanoate, ethanoic acid, ethane, ethene, ethyne, ethanal or chloroethane?

In the following chemical reaction the oxidizing agent is 1. 5H2O2 + 2MnO4 – + 6H+ → 2Mn2+ + 8H2O + 5O2

Identify the following atom or ion from the electron configurations. Y - : 1s22s22p63s23p64s23d104p65s24d105p6

Which of the following is NOT a strong base? 1. Be(OH)2 c. NaOH 2. Li2O d. CaO

What is the correct electronic configuration of Copper?

Which one of the following is a redox reaction?

If you have a negative entropy and a positive enthalpy, what can the Gibb's free energy be?

If n=2, what is l and ml respectively?

Using the following thermochemical data: 2Y(s) + 6HF(g) → 2YF3(s) + 3H2(g) ΔH° = –1811.0 kJ/mol 2Y(s) + 6HCl(g) → 2YCl3(s) + 3H2(g) ΔH° = –1446.2 kJ/mol calculate ΔH° for the following reaction: YF3(s) + 3HCl(g) → YCl3(s) + 3HF(g)

What is the VSEPR shape of AsH3

What VSEPR molecular shape do you expect for IF4 +?

Is cyclopentanol a primary secondary or tertiary alcohol?

Calculate the [H+] in a solution that has a pH of 9.48.

For nitrous acid, HNO2, Ka = 4.0 × 10–4. Calculate the pH of 0.54 M HNO2.

Given the equilibrium: AgBr(s) <--> Ag+ (aq) + Br-(aq) Ksp = 3.3 x 10-13 If [Br-(aq)] = 0.50 mol/L, what is [Ag+ (aq)]?

For the reaction: Ag+ (aq) + Cl-(aq) <--> AgCl(s) ΔH = -127kJ/mol In which direction does the equilibrium shift as a result of adding NaCl?

What is the specific heat capacity of zinc if it requires 146 J to raise the temperature of 15 grams of zinc by 25°C?

name an isomer of 2-methylpropane

. Calculate E°cell for the following reaction: 2Fe2+ (aq) + Cd2+ (aq) à 2Fe3+ (aq) + Cd(s)

Cyclopropane undergoes rearrangement to form propene, C3H6. If cyclopropane disappears at a rate of 0.50 mol/ Ls, at what rate is propene being pduced?ro

The air pollutant NO is produced in automobile engines from the high temperature reaction: N2 (g) + O2 (g) D 2NO(g) Keq = 1.7 x 10-3 at 2300K. If the initial concentration of N2 (g) and O2 (g) at 2300K are both 1.40M, what is the concent

What is the name of this compound?

Calculate the [H+] in a solution that is 0.18 M in NaF and 0.25 M in HF. (Ka = 7.2 × 10–4)

What is the pH of a solution made of 0.50 M acetic acid and 0.200 sodium acetate given the Ka of acetic acid is 1.8 x 10-5?

How many carbons are there in 3-ethylpentane?

The oxidation number of Fe in K3Fe(CN)6 is:

Identify the following atom from the electron configurations. Y : 1s22s22p63s23p64s23d104p65s24d105p1

What is the hybridization of a carbon in ethene?

How can you convert but-2-yne to (2Z)-but-2-ene

The pH at the equivalence point of a titration of a weak acid with a strong base will approximately be

State the condensed electron configuration of b. S^2- (sulfur anion)