What is (CO2)+[Ca(OH)2] -Science

What is (CO2)+[Ca(OH)2] -Science
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Balance Ca(OH)2+CO2--->CaCO3+H2O The mechanism of reaction of carbon dioxide in aqueous calcium hydroxide is a double displacement reaction. Calcium hydroxide + carbon dioxide → Calcium carbonate + water. The equation for the reaction: Both the right (products) and left (reactants) side of the “equation are balanced”
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Is Ca or Sc more reactive in science?

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