Task 4. Look at the picture and comment on it from the point of view of chemistry.
Date: 2015-10-07; view: 477.
Practice in reading these names. Read out them to your groupmates.
Task 3. Define the type of inorganic chemical reaction.
Task 1. Practice in reading chemical formulas and equations in the text (see the rules in Appendix 4).
Tasks
Task 2. Each column contains a category and some terms listed under it. Cross out the term that does not fit in each category.
| Type of inorganic reaction | Inorganic compounds | Soluble substances |
| decomposition | sulfur dioxide | copper sulfate |
| combination | sodium chloride | zinc sulfate |
| esterification | silver chloride | sodium hydroxide |
| single displacement | sodium citrate | sodium chloride |
| double displacement | hydrochloric acid | silver chloride |
| Equation | Type of reaction |
| 2KMnO4 = K2MnO4 + MnO2 + O2 | |
| CaO + CO2 = CaCO3 | |
| Zn + 2HCl = ZnCl2 + H2 | |
| BaCl2 + H2SO4 = BaSO4 + 2HCl |
Pay attention to the names of the reactants:
| Zn – zinc | O2 – oxygen |
| HCl – hydrochloric acid | BaCl2 – barium chloride |
| KMnO4 - potassium permanganate | CaO – calcium oxide |
| K2MnO4 - potassium manganate | H2SO4 – sulphuric acid |
| ZnCl2 – zinc chloride | CO2 – carbon dioxide |
| MnO2 – manganese oxide (IV) | BaSO4 – barium sulphate |
| H2 – hydrogen | CaCO3 – calcium carbonate |
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| TYPES OF INORGANIC CHEMICAL REACTIONS | | | Task 6. Explain the following words and word-combinations in English. |