by Sunday | Dec 8 | Chemistry WAEC
A. reaction vessel feels cool during the reaction B. enthalpy change is negative C. bond-forming energy exceeds bond breaking energy D. heat of formation of reactants exceeds heat of formation of products Correct Answer: Option A A. reaction vessel feels cool during...
by Sunday | Dec 8 | Chemistry WAEC
A. double anions in its aqueous solution B. a single cation in its aqueous solution C. hydrogen ions in its aqueous solution D. hydrogen atoms in its aqueous solution Correct Answer: Option C C. hydrogen ions in its aqueous solution Explanation Acid salts are salts...
by Sunday | Dec 8 | Chemistry WAEC
A. 0.08gdm ‾³ B. 2.00gdm ‾³ C. 8.00gdm ‾³ D. 80.00gdm ‾³ Correct Answer: Option B B. 2.00gdm ‾³ Explanation 1000cm³ = 1dm³ 200cm³ = 0.2dm³ ⇒ 0.2dm³ contains 0.4g hence, the solubility of the salt which is the amount of the salt dissolvable in 1dm³ is...
by Sunday | Dec 8 | Chemistry WAEC
A. decomposition B. oxidation C. reduction D. sublimation Correct Answer: Option C C. reduction Explanation The Iron is to to be gotten by the removal of oxygen from its ore, and this is called a reduction reaction.
by Sunday | Dec 8 | Chemistry WAEC
A. HNO3(aq) +NaOH(aq) →NaNO3(aq)+H2O(l) B. AgNO3(aq) +KCl(aq) →AgCl(s)+KNO3(aq) C. CaCO3(s) →CaO(s)+CO2(g) D. 2H2S(s)+SO2(g) →2H2O+3S(g) Correct Answer: Option D D. 2H2S(s)+SO2(g) →2H2O+3S(g)
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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