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Chemistry Module 4 > Transition Metals > Flashcards

Flashcards in Transition Metals Deck (16):
1

What are transition elements?

Metals and have typical metallic properties

2

What are copper and iron?

Transition metals

3

Describe thermal decomposition?

A,reaction which a substance is broken down into at least two substances by heat

4

Test for carbon dioxide

Turns limewater milky

5

Describe precipitation?

As a reaction between solutions that makes an insoluble solid

6

Recall that compounds of transitions elements are often coloured:

- copper compounds are often blue
- iron (III) compounds are often light green
- iron (III) compounds are often orange/brown

7

Recall that transition elements and their compounds are often used as catalysts

- iron in the haber process
- nickel in the manufacture of margarine

8

Describe the use of sodium hydroxide solution in identify the presence of transition metal ions in solution

- Cu²⁺ gives a blue solid
- Fe²⁺ gives a grey/green solid
- Fe³⁺ gives an orange/brown solids
- the solids are called precipitates

9

Construct the balanced symbol equation for the thermal decomposition of FeCO₃

FeCO₃ → FeO + CO₂

10

Construct the balanced symbol equation for the thermal decomposition of CuCO₃

CuCO₃ →CuO +CO ₂

11

Construct the balanced symbol equation for the thermal decomposition of MnCO₃

MnCO₃ → MnO+ CO₂

12

Construct the balanced symbol equation for the thermal decomposition of ZnCO₃

ZnCO₃ → ZnO+CO₂

13

Construct balanced symbol equation for the reaction between Cu²⁺

Cu²⁺ +2OH⁻ →Cu(OH)₂

14

Construct balanced symbol equation for the reaction between Fe²⁺

Fe²⁺ 2OH⁻ →Fe(OH)₂

15

Construct balanced symbol equation for the reaction between Fe³⁺

Fe³⁺+3OH⁻ →Fe(OH)₃

16

Identify whether an element is a transition metal from its position in the periodic table

The transition metals are in the centre of the periodic table