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2.5 - Transition Metals 3

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Total cards: 11•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (11)

#1
Front (Question)

Catalyst for Contact Process?

Back (Answer)

V₂O₅(s)

#2
Front (Question)

Equations for: Contact Process

Back (Answer)

V₂O₅(s) + SO₂(g) |> SO₃(g) + V₂O₄(s) V₂O₄(s) + ½O₂(g) |> V₂O₅(s) Overall: SO₂(g) + ½O₂(g) |> SO₃(g)

#3
Front (Question)

Equations for reaction between S₂O₈²⁻ & I⁻?

Back (Answer)

2Fe²⁺(aq) + S₂O₈²⁻(aq) |> 2Fe³⁺(aq) + 2SO₄²⁻(aq) 2Fe³⁺(aq) + 2I⁻(aq) |> 2Fe²⁺(aq) + I₂(aq)

#4
Front (Question)

Intermediate for reaction between S₂O₈²⁻ & I⁻?

Back (Answer)

Fe³⁺(aq) or Fe²⁺(aq) if Fe³⁺(aq) is catalyst

#5
Front (Question)

Catalyst for reaction between S₂O₈²⁻ & I⁻?

Back (Answer)

Fe²⁺(aq) or Fe³⁺(aq)

#6
Front (Question)

How does a Heterogeneous Catalyst work?

Back (Answer)

Reactants are adsorbed to active sites on catalyst surface

#7
Front (Question)

How does Mn²⁺ Autocatalyse the reaction between MnO₄⁻ & C₂O₄²⁻?

Back (Answer)

Step 1: rate v. slow whilst some Mn²⁺ is formed 2MnO₄⁻ + 5C₂O₄²⁻ + 16H⁺ |> 2Mn²⁺ + 8H₂O + 10CO₂ Step 2: Mn²⁺ & MnO₄⁻ react 4Mn²⁺ + MnO₄⁻ + 8H⁺ |> 5Mn³⁺ + 4H₂O Step 3: Mn³⁺ & C₂O₄²⁻ react 2Mn³⁺ + C₂O₄²⁻ |> 2Mn²⁺ + 2CO₂

#8
Front (Question)

Define: Catalyst Poisoning

Back (Answer)

When reactant impurities bind to the active sites on catalyst, blocking the reactants

#9
Front (Question)

Examples of a Heterogeneous Catalyst?

Back (Answer)

The contact process - V₂O₅(s) Haber Process - Fe(s)

#10
Front (Question)

Catalyst for Haber Process?

Back (Answer)

Fe(s)

#11
Front (Question)

Equation for reaction between MnO₄⁻ & C₂O₄²⁻?

Back (Answer)

2MnO₄⁻ + 5C₂O₄²⁻ + 16H⁺ |> 2Mn²⁺ + 8H₂O + 10CO₂