Chemical Formulas Scientists developed a shorthand method of representing elements and compounds. Chemical Symbol: Either a single capital letter of capital.

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Presentation transcript:

Chemical Formulas Scientists developed a shorthand method of representing elements and compounds. Chemical Symbol: Either a single capital letter of capital letter followed by a lower case letter represents each element. Ca – calcium Ne – neon Co - cobalt C – carbon N – nitrogen CO – carbon, oxygen Chemical Formula: A combination of symbols representing a particular compound. It indicates the elements in the compound and the proportion in which they are present. NaCl – 1 sodium atom, 1 chlorine atom Cu2O4 – 2 copper atoms, 4 oxygen atoms

Activity!! Name the elements in each Chemical compound AND State the number of atoms present a) NaHCO3 (sodium bicarbonate – baking soda) b) CaCO3 (calcium carbonate – chalk) c) CuSO4 (copper II sulphate) d) C9H8O4 (acetylsalicylic acid – aspirin)