Question

(Nh4)2cr207—>cr203 + h20+n2 balanced the following equation

Answer 1

Answer:

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Step-by-step explanation:

his is an oxidation-reduction (redox) reaction:

2 N-III - 6 e- → 2 N0 (oxidation)

2 CrVI + 6 e- → 2 CrIII (reduction)

(NH4)2Cr2O7 is a reducing agent, (NH4)2Cr2O7 is an oxidizing agent.

This is a precipitation reaction: Cr2O3 is the formed precipitate.

This is a gas evolution reaction, N2 is the formed gas.

Reactants:

(NH4)2Cr2O7 – Ammonium dichromate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04

Other names: Ammonium bichromate source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04, Ammonium pyrochromate source: wikipedia, accessed: 2019-09-27, Diammonium dichromate (VI) source: ICSC, accessed: 2019-09-04, Dichromic acid, diammonium salt source: ICSC, accessed: 2019-09-04

Appearance: Orange-red crystals source: wikipedia, accessed: 2019-09-27; Orange-to-red crystals source: ICSC, accessed: 2019-09-04

Products:

N2

Names: Dinitrogen source: wikidata, accessed: 2019-09-07, Nitrogen (compressed gas) source: ICSC, accessed: 2019-09-04, Nitrogen (liquified) source: ICSC, accessed: 2019-09-04

Appearance: Odourless colourless compressed gas source: ICSC, accessed: 2019-09-04; Odourless colourless extremely cold liquid source: ICSC, accessed: 2019-09-04

H2O – Water, oxidane source: wikipedia, accessed: 2019-09-27

Other names: Water (H2O) source: wikipedia, accessed: 2019-09-27, Hydrogen hydroxide (HH or HOH) source: wikipedia, accessed: 2019-09-27, Hydrogen oxide sourceAppearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas Cr2O3

Names: Chromium(III) oxide source: wikipedia, accessed: Chromium sesquioxide source: wikipedia, accessed: source: wikidata, accessed: 2019-09-02, Chromia source:

Appearance: Light to dark green, fine crystals