Answer:
when CO2 gas is passed through lime water it turns milky due to the formation of calcium carbonate which formula is CaCO3.
Ca(OH)2+ CO2------ CaCO3
when excess of carbon dioxide is passed through calcium carbonate calcium hydrogen carbonate is formed and solution become colourless.
CaCO3+CO2------ Ca(HCO3)
Answer:
I think the answer is D. Temperature affects only the rate of reaction.
The rows are the one line of elements that goes from left to right horizontally. A column is a line of elements that goes vertically.
