Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
The additional of the two is expected to be one
The product of the two is expected to be one
The two equilibrium constants are identical
The product of the two is always greater than one
Correct answer is A
No explanation has been provided for this answer.
2, 2, 4
-1, -2, 4
-2, 1, 0
2, 4, 0
Correct answer is C
No explanation has been provided for this answer.
S2O2-3 + I2 → S2O62- + 2I-. In reaction above, the oxidizing agent is?
S2O32-
I2
S4O62-
I-
Correct answer is B
No explanation has been provided for this answer.
2.7
5.4
10.8
21.7
Correct answer is B
Mg + 2e → 24 gms
2f → 24 gms
2 x 96,500 → 24 gms
Q = (500 x 1440 x 60)
Q = 4320000 C
1 mole of mg = (1) / (2 x 96,500) x (43200000) / (1)
= (24)/(1) = (1036800000) / (193000) = 5372.020725 gms
in leg = (5372.020725) / (1000) = 5.4 leg
Copper and oxygen
Oxygen and copper
Hydrogen and copper
Copper and hydrogen
Correct answer is B
No explanation has been provided for this answer.