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  1. Why hardness is always calculated in terms of caco3?

    May 23, 2024 · Marble is known as Calcium Carbonate (CaCO3) in terms of chemical formula. Technetium is relatively rare, with an atomic number of 43.

  2. Thermal decomposition of calcium carbonate - Physics Forums

    Feb 9, 2014 · In general, we heat CaCO3 to temperature of approximately 825°C it decomposes into calcium oxide and liberates carbon dioxide gas: CaCO3 →825°C→ CaO + CO2 Is it possible to heat …

  3. Is CaCO3 a salt? - Answers

    May 30, 2024 · Why is CaCO3 a salt? CaCO3 is considered a salt because it is a compound formed from the reaction between a metal (calcium) and a non-metal (carbon and oxygen).

  4. Calculating alkalinity and expressing it in as CaCO3

    Sep 20, 2010 · This discussion focuses on calculating alkalinity expressed as CaCO3 from various ions, specifically Ca2+, Mg2+, CO2, HCO3-, and CO32-. The calculations provided by the user yield …

  5. What is the IUPAC name for the compound CaCO3? - Answers

    Feb 8, 2025 · The IUPAC name for the compound CaCO3 is calcium carbonate. In this compound, "Ca" represents the element calcium, while "C" represents the element carbon, and "O" represents the …

  6. What is the balanced equation for calcium carbonate and vinegar?

    Jun 5, 2024 · The balanced chemical equation for the reaction between calcium carbonate (CaCO3) and vinegar (acetic acid, CH3COOH) is: CaCO3 + 2CH3COOH → Ca (CH3COO)2 + CO2 + H2O This …

  7. Theoretical Yield of CaCO3: Calculate & Round - Physics Forums

    Feb 27, 2011 · Homework Statement What is the theoretical yield of calcium carbonate if 2.07 grams of calcium chloride dihydrate reacts with excess sodium carbonate according to the balanced chemical …

  8. What is the word formula for calcium carbonate and ... - Answers

    Jul 10, 2025 · Calcium carbonate is represented by the chemical formula CaCO3. In a symbol equation, the reaction of calcium carbonate with hydrochloric acid can be written as: CaCO3 + 2HCl → CaCl2 …

  9. Solve Entropy & Enthalpy for Calcium Carbonate Decomposition

    Nov 14, 2010 · The discussion focuses on calculating the thermodynamic properties of the decomposition of calcium carbonate (CaCO3) into calcium oxide (CaO) and carbon dioxide (CO2). …

  10. What is the equation for the reaction between calcium ... - Answers

    May 22, 2024 · The chemical equation for the reaction between calcium carbonate (CaCO3) and hydrochloric acid (HCl) is: CaCO3 + 2HCl → CaCl2 + CO2 + H2O In this reaction, calcium carbonate …