Inorganic Chemistry Answers

Balance and classify the following reaction
P4O10(s) + C(s) → P4(s) + CO(g)

Balance and classify the following reaction
Mg(s) + HCl(aq) → MgCl2(aq) + H2(g)

Indicate the characteristic colour of each of the following aqueous ions:
Colour when aqueous

Copper (II)
Nickel (II)
Iron (II)
Chromate (VI)
Iron (III)
Barium
Permanganate
Cobalt (II)
Chromium (III)
Dichromate (VI)
Silver
Sodium
Ammonium
Potassium

How would you test for the presence of the following ions in aqueous
solution of an unknown salt?
Give a Brief description of test and the Observations if test is
positive

I-
Reaction equation to account for observation:

CO32-
Reaction equation to account for observation:

Ag+
Reaction equation to account for observation:

Ba2+
Reaction equation to account for observation:

Indicate the solubility in water of each of the following groups of compounds:

Salts of the alkali metals
Hydroxides
Chlorides
Carbonate
Sulphates
Nitrate

All s- block element exhibit ——- stable oxidation state

A coin dropped in an acid begins to turn color and produce gas. What kind of process takes place into this? Physical or chemical?

Salt is dissolved in water. What kind of process takes place into this? Physical or chemical?

A fireckracker explodes. What kind of process takes place into this? Physical or chemical?

Removing a stain with bleach. What kind of process takes place into this? Physical or chemical?