Chemistry WAEC - Page 83 of 229 - Erudites Academy

A sodium atom and a sodium ion have the same?

A sodium atom and a sodium ion have the same?

by Sunday | Aug 21 | Chemistry WAEC

A. number of neutrons B. number of electrons C. electric charge D. electronic structure E. chemical properties Correct Answer: Option A – number of neutrons

A sodium atom and a sodium ion have the same?

Which of the following is a general method of preparing acids?

by Sunday | Aug 21 | Chemistry WAEC

A. Direct combination of constituent elements B. Double decomposition involving a salt solution C. Reaction between an anhydride and water D. Reaction between a base and an amphoteric oxide E. Dissolution of hydroxides followed by neutralization Correct Answer: Option...

A sodium atom and a sodium ion have the same?

An acid is a substance which in the presence of water produces?

by Sunday | Aug 21 | Chemistry WAEC

A. salts B. oxygen C. effervescence D. hydroxonium ions E. hydrogen gas Correct Answer: Option D – hydroxonium ions

A sodium atom and a sodium ion have the same?

An increase in the pressure of a gas results in a decrease in its?

by Sunday | Aug 21 | Chemistry WAEC

A. mass B. vapour density C. volume D. temperature E. concentration Correct Answer: Option C – volume

A sodium atom and a sodium ion have the same?

If the atomic number of an element X is 11 and that of nitrogen is 7, the most likely formula of the nitride of X is?

by Sunday | Aug 21 | Chemistry WAEC

A. X3N B. XN3 C. X3N2 D. N2X E. NX2 Correct Answer: Option A – X3N

A sodium atom and a sodium ion have the same?

In linear molecules, the bond angle is?

by Sunday | Aug 21 | Chemistry WAEC

A. 90° B. 140° C. 109° D. 120° E. 180° Correct Answer: Option E – E. 180°

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