Chemistry Study

CHEMISTRY STUDY NOTES:

Module 1: The Chemical Earth

1.1 Construct word and balanced formulae equations of chemical reactions as they are encountered.

STEPS:

1. General equation

2. Word equation

3. Formula equation

4. Balanced equation

5. Ionic equation

Neutralisation:

1. base + acid  salt + water

2. calcium hydroxide (aq) + hydrochloric acid (aq)  calcium chloride + water

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

1. base + acid  salt + water

2. ammonium hydroxide + hydrochloric acid  ammonium chloride + water

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

Displacement of Metal for Hydrogen:

1. acid + metal  salt + hydrogen

2. Sodium + hydrochloric acid  sodium chloride + hydrogen

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

1. acid + metal carbonate  salt + carbon dioxide + water

2. hydrochloric acid + copper carbonate  copper chloride + carbon dioxide + water

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

(If one salt is insoluble precipitation)

1. saltAB + saltCD  saltCB + saltAD

2. Lead nitrate (aq) + potassium iodide (aq)  Lead iodide (s) + potassium nitrate (aq)

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

1. saltAB + saltCD  saltCB + saltAD

2. barium nitrate(aq) + hydrogen sulphate(aq)barium sulphate(s) + hydrogen nitrate(aq)

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

Displacement of one metal for another:

1. metal X + salt AB  metal A + Salt XB (base)

2. _____________________________________________________

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

Corrosion:

1. metal + oxygen  metal oxide (base)

2. magnesium + oxygen  magnesium oxide

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

1. non-metal + oxygen  non-metal oxide (acid)

2. phosphorus (s) + oxygen (g)  phosphorus oxide

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

1. non-metal + oxygen  non-metal oxide

2. calcium (s) + oxygen (g)  calcium oxide

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

1. Non-metal oxide + water  ACID

2. _____________________________________________________

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

1. Non-metal oxide + water  ACID

2. _____________________________________________________

3. _____________________________________________________

4. _____________________________________________________

5. _____________________________________________________

Decomposition:

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