A. reaction vessel feels cool during the reaction B. enthalpy change is negative C. bond-forming energy exceeds bond breaking energy…
A. double anions in its aqueous solution B. a single cation in its aqueous solution C. hydrogen ions in its…
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…
A. decomposition B. oxidation C. reduction D. sublimation Correct Answer: Option C C. reduction Explanation The Iron is to to…
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)
A. Pentane B. Benzene C. Propane D. Hexane Correct Answer: Option B B. Benzene
A. Ethene B. Methane C. Sulphur D. Hydrogen Correct Answer: Option A A. Ethene