Question

Составить цепочку 1) c-co2-h2co3-na2co3-na2so4 2) ca-cao-caoh-cacl2-caso4

Answer 1

1) 1. C+O2 = CO2
2. CO2+H2O = H2CO3
3. H2CO3+2NaOH = Na2CO3+2H2O
4. Na2CO3+CaSO4 = CaCO3↓+Na2SO4
2) 1. 2Ca+O2 = 2CaO
2. CaO+H2O = Ca(OH)2
3. Ca(OH)2+2HCl = CaCl2+2H2O
4. CaCl2+Ag2SO4 = CaSO4+2AgCl↓

Answer 2

Chain 1: c-co2-h2co3-na2co3-na2so4

The given chain starts with "c" and ends with "na2so4". Let's break down the chain step by step:

1. "c" stands for carbon. 2. "co2" stands for carbon dioxide. 3. "h2co3" stands for carbonic acid. 4. "na2co3" stands for sodium carbonate. 5. "na2so4" stands for sodium sulfate.

So, the complete chain is: c-co2-h2co3-na2co3-na2so4.

Chain 2: ca-cao-caoh-cacl2-caso4

The given chain starts with "ca" and ends with "caso4". Let's break down the chain step by step:

1. "ca" stands for calcium. 2. "cao" stands for calcium oxide. 3. "caoh" stands for calcium hydroxide. 4. "cacl2" stands for calcium chloride. 5. "caso4" stands for calcium sulfate.

So, the complete chain is: ca-cao-caoh-cacl2-caso4.

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