Question

The chemical reaction between marble and dilute HCl is giver
CaCO, + 2HCl → CaCI, + H,0 + CO,
a. Which gas is formed here? How can you identify this ga
b. Suggest any two ways you would choose to increase
rate of this chemical reaction. Explain the reason.
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Answer 1

Answer:

a. Carbon dioxide gas is formed.

b. the rate of chemical reaction woulb be increased by increasing the temp. and pressure.

Explanation:

a. CaCO3+2HCl-->CaCl2+H2O+CO2

b. according to lechattilers principle, the reaction is exothermic so if we increase the temp. more product will form. and increasing pressure.

HOPE IT HELPS YOU BRO