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If 5 g of CaCO3 decomposes completely, how many grams of CaO are produced?

Practice Questions

1 question
Q1
If 5 g of CaCO3 decomposes completely, how many grams of CaO are produced?
  1. 2 g
  2. 3 g
  3. 4 g
  4. 5 g

Questions & Step-by-step Solutions

1 item
Q
Q: If 5 g of CaCO3 decomposes completely, how many grams of CaO are produced?
Solution: CaCO3 → CaO + CO2. Molar mass of CaCO3 = 100 g, CaO = 56 g. 5 g of CaCO3 produces (5 g * 56 g) / 100 g = 2.8 g of CaO.
Steps: 6

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