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Question

Balance the following equations and write sown the stoichiometric proportions.
a) $$CaCO_3 + HCl \to CaCl_2+H_2O + CO_2$$
b) $$MnO_2+HCl \to MnCl_2 + H_2O + Cl_2$$
c) $$Mg(OH)_2+HCl \to MgCl_2 + H_2O$$
d) $$KI + H_2SO_4 \to KHSO_4 + I_2+SO_2$$


Solution

a)$$CaC{O}_{3} + 2HCl \rightarrow Ca{Cl}_{2} + {H}_{2}O + C{O}_{2}$$
b)$$Mn{O}_{2} + 4HCl \rightarrow Mn{Cl}_{2} +{Cl}_{2} + 2{H}_{2}O$$
c)$$Mg({OH})_{2} + 2HCl \rightarrow Mg{Cl}_{2} + 2{H}_{2}O$$
d)$$2KI + 3{H}_{2}S{O}_{4} \rightarrow 2KHS{O}_{4} + S{O}_{2} + {I}_{2} + 2{H}_{2}O$$

Chemistry

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