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

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

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

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

How many electrons in an atom can have the quantum numbers n = 3, l = 2?

name an isomer of 2-methylpropane

For the reaction 2A + 4B→2C + 2D, at a particular instant in time, the rate of the reaction is 0.0352 M/s. What is the rate of change of B?

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

Which type of alcohols are oxidized to produce carboxylic acids?

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)

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

Which of the following would have the highest boiling point?

When ignited, a uranium compound burns with a green flame. The wavelength of the light given off by this flame is greater than that of