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10 March, 07:18

Select all that apply. Which of the following are elements? O2 Ca KF B

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  1. 10 March, 10:21
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    O2 oxygen diatomic molecule, ca calcium atom, b boron atom

    kf is potassium fluoride a compound of elements potassium, k, and fluorine f, both of which are very highly reactive and toxic elements.
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