Click the QR code for MC Questions. Written questions, use your jotter, date & heading: ExN5 S3_5A Chemical Formulae. |
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| 1. | ||
| Write the chemical formula for compounds: | ||
| i) | magnesium chloride | |
| ii) | sulfur dioxide | |
| iii) | potassium oxide |
| 2. |
The Valency MethodWrite the chemical formula for the following compounds: |
| (a) | hydrogen chloride | (b) | phosphorus oxide |
| (c) | nitrogen hydride | (d) | magnesium hydride |
| (e) | carbon iodide | (f) | silicon oxide |
| (g) | sodium chloride | (h) | potassium chloride |
| 3. |
Using PrefixesWrite the chemical formula for the following compounds: |
| (a) | sulfur trioxide | (b) | carbon dioxide |
| (c) | dinitrogen tetroxide | (d) | dihydrogen oxide |
| (e) | carbon monoxide | (f) | nitrogen trihydride |
| (g) | dihydrogen dioxide |
| 4. |
Using Roman Numerals – Valency MethodWrite the chemical formula for the following compounds: |
| (a) | copper (II) oxide | (b) | silver (I) hydride |
| (c) | cobalt (II) chloride | (d) | zinc (III) iodide |
| (e) | iron (III) oxide | (f) | copper (I) hydride |
| (g) | nickel (I) sulfide | (h) | lead (I) sulphide |
