The coefficient of x^4 is C(8,4) = 70.

The coefficient of x^4 is given by 6C4 * (2)^2 = 15 * 4 = 60.

The coefficient of x^5 is C(6,5) * (2)^5 * (-1)^1 = 6 * 32 * (-1) = -192.

The coefficient of x^5 is C(7,5) * (4)^2 = 21 * 16 = 336.

The coefficient of x^5 is C(7,5) * (-3)^2 = 21 * 9 = -189.

The coefficient of x^6 is C(8,6) * (2)^6 * (-1)^2 = 28 * 64 = 1792.

The coefficient of x^6 is C(8,6) * (3)^2 = 28 * 9 = 252.

The coefficient of x^6 is C(9,6)(3)^3 = 84 * 27 = 2268.

The coefficient of x^7 is C(8,7)(2)^7(-3)^1 = 8 * 128 * -3 = -3072.

Potassium permanganate (KMnO4) is known for its deep purple color.

[Cu(NH3)4]2+ is known to exhibit a blue color due to d-d transitions.

[Cu(H2O)6]2+ is typically blue due to the d-d transitions of the copper ion in an octahedral field.

Strontium salts produce a red flame when burned.

Lithium salts produce a red flame when burned.

Potassium dichromate (K2Cr2O7) gives a yellow solution.

Alkaline earth metals commonly exhibit a +2 oxidation state.

Alkaline earth metals typically exhibit a common oxidation state of +2.

Aluminum commonly exhibits an oxidation state of +3 in its compounds.

In CrO3, chromium (Cr) has an oxidation state of +6.

Group 1 elements commonly exhibit an oxidation state of +1.

Group 13 elements commonly exhibit a +3 oxidation state due to the loss of three valence electrons.

In Fe2O3, iron has a common oxidation state of +3.

In FeCl3, iron (Fe) has an oxidation state of +3.

In ammonia (NH3), nitrogen has an oxidation state of -3.

In sulfuric acid, sulfur has an oxidation state of +6.

The common oxidation state of transition metals in the d-block is +2, as they often lose two electrons from their outermost shell.

Moles of NaCl = 58.5 g / 58.5 g/mol = 1 mole. Molarity = 1 mole / 1 L = 1 M.

Moles of NaOH = 5 g / 40 g/mol = 0.125 mol. Molarity = 0.125 mol / 0.25 L = 0.5 M.

Concentration of H+ = 10^(-pH) = 10^(-3) = 0.001 M.

[H+] = 10^(-pH) = 10^(-4) = 0.0001 M.