Chemistry Past Questions and Answers

2NaNO₃ → 2NaNO₂ + O₂. From the equation above, what is the volume of oxygen produced at s.t.p. when 8.5g of 2NaNO₃ is heated until no further gas is evolved? (2NaNO₃ = 85, molar volume of gases at s.t.p. = 22.4dm³)

Esterification of propane 1,2,3-triol and unsaturated higher carboxylic acids will produce

The ratio of reactants to products is 1: 3: 2 in the reaction represented by the equation below: N_{2,/SUB> [sub](g)} → 2NH_3(g) which of the following law is demonstrated by this?
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In the redox reaction represented by the following equation: Cu^{2+_aq + Zn_(s) → Cu_(s) + Zn[sup]2+}[/sup]

When starch undergoes complete enzyme-catalyzed hydrolysis, the resulting product is