2 years ago

Please help I don't understand

1 answer:

3 0

NaCl: natriumchloride. 1 atom of each, so the 2 is too much and I (capital i here) is another element

So for the second excercise the number behind the symbol is the amount of atoms in the compound. So easily 2 atoms of Li, 1 atom of S and 4 of O

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