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Chemical compounds

Chemical compounds. Compounds are made from two or more different elements chemically joined together. Chemical compounds and elements are given shortened codes to identify them – their periodic code. Periodic codes – can you guess?. O. Oxygen. H. Hydrogen. C. Carbon. S. Sulphur. K.

JasminFlorian
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Chemical compounds

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  1. Chemical compounds Compounds are made from two or more different elements chemically joined together.

  2. Chemical compounds and elementsare given shortened codes to identify them – their periodic code.

  3. Periodic codes – can you guess? O

  4. Oxygen

  5. H

  6. Hydrogen

  7. C

  8. Carbon

  9. S

  10. Sulphur

  11. K

  12. Potassium

  13. F

  14. Iron

  15. Each compound has a chemical formula

  16. The chemical formula shows how many atoms of each element is contained within the compound.

  17. A molecule of water (H2O) contains two hydrogen atoms and one oxygen atom.

  18. A molecule of carbon dioxide (CO²) contains two oxygen atoms and one carbon atom.

  19. A molecule of carbon monoxide (CO) contains one oxygen atom and one carbon atom.

  20. A molecule of oxygen (O²) contains two oxygen atoms

  21. A molecule of methane gas (CH4) contains one carbon atom and four hydrogen atoms.

  22. Everyday products and materials contain lots of different chemical compounds or depend on chemical compounds for their manufacture.

  23. Think, pair, share • What chemical compounds do you know of that are in or used in the manufacture of everyday objects or products? • think about materials!

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