Which atoms will be found in the products of the following reactions?

a. Mercury (II) oxide, #HgO#, is heated and decomposes.
b. Limestone, #CaCO_3#, reacts with hydrochloric acid, #HCl#.
c. Table sugar, #C_12H_22O_11# burns in air to form caramel?

1 Answer
Jan 22, 2017

Answer:

You will only find atoms that were originally present.

Explanation:

(a) #HgandO#
The reaction is #2HgO->2Hg+O_2#

(b) #Ca,C,O, H and Cl#
The reaction is #CaCO_3+2HCl->CaCl_2+CO_2+H_2O#

(c) #C,HandO#
A simple reaction equation cannot be written, as much depends on the heating and the completeness of the burning.