Chemical Reacti...

Which of the statement is correct about the following reaction?
$$2KClO_3(s)\underset {catalyst}{\xrightarrow {Heat}}2KCl(s)+3O_2(g)$$

If you pour a few drops of petrol on your palm, it will feel cool as the petrol evaporates. This change is a/an:

The reaction $$\mathrm{2Na}+\mathrm{Cl}_2\rightarrow \mathrm{2NaCl}$$ is an example of:

In the equation, $$Na_2CO_3+xHCl\rightarrow 2NaCl +CO_2+H_2O$$, the value of $$x$$ is: 

Corrosion occurs due to:
(a) the action of water on the metal.
(b) the action of air on the metal.
(c) the action of temperature on the metal.

A __________ involves the conversion of reactants into products.

Which one of the following does not happen during a chemical reaction? 

Which of the following is not a decomposition reaction?

Why is rusting more common in damp areas?

$$Fe_{2}O_{3} + \underline {a} \rightarrow \underline {b} + Al_{2}O_{3}$$