Write the reaction equation: Na2CO3-NaCl – Na – NaCl – NaNO3 – Na2CrO4
| April 30, 2021 | education
1) Na2CO3 + 2HCl → H2O + CO2 ↑ + 2NaCl (exchange reaction);
2) 2NaCl → 2Na + Cl2 ↑ (decomposition reaction);
3) 2Na + 2HCl → H2 ↑ + 2NaCl (substitution reaction);
4) NaCl + AgNO3 → AgCl ↓ + NaNO3 (exchange reaction);
5) Cr2O3 + 3NaNO3 + 4NaOH → 2Na2CrO4 + 3NaNO2 + 2H2O (redox reaction).
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