2. Cr207 -2 + 20H- → 2Cr204 -2 + H2O Redox or Nonredox? If REDOX: Balanced equation: Oxidizing agent: Reducing agent:

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Help me answer #2 with a step by step process. If the chemical reaction is a redox, balance it by oxidation number method and determine the oxidizing and reducing agents. Thank you

1. K2Cr204 + H2O2 + HCI → KCI + CrC13 + 02 + H2O
Redox or Nonredox?
If REDOX: Balanced equation:
Oxidizing agent:
Reducing agent:
2. Cr207 -2 + 20H- → 2Cr204 -2 + H2O
Redox or Nonredox?
If REDOX: Balanced equation:
Oxidizing agent:
Reducing agent:
3. K2Cr207 + FeS04 + H2SO4 → K2SO4 + Cr2(SO4)3 + Fe2(SO4)3 + H20
Redox or Nonredox?
If REDOX: Balanced equation:
Oxidizing agent:
Reducing agent:
4. CaCO3 + 2HCI → CaC12 + CO2 + H2O
Redox or Nonredox?
If REDOX: Balanced equation:
Oxidizing agent:
Reducing agent:
Transcribed Image Text:1. K2Cr204 + H2O2 + HCI → KCI + CrC13 + 02 + H2O Redox or Nonredox? If REDOX: Balanced equation: Oxidizing agent: Reducing agent: 2. Cr207 -2 + 20H- → 2Cr204 -2 + H2O Redox or Nonredox? If REDOX: Balanced equation: Oxidizing agent: Reducing agent: 3. K2Cr207 + FeS04 + H2SO4 → K2SO4 + Cr2(SO4)3 + Fe2(SO4)3 + H20 Redox or Nonredox? If REDOX: Balanced equation: Oxidizing agent: Reducing agent: 4. CaCO3 + 2HCI → CaC12 + CO2 + H2O Redox or Nonredox? If REDOX: Balanced equation: Oxidizing agent: Reducing agent:
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