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04-09-2019
Biology

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Which of the substances observed are elements?
A. S, Fe, O , Sr, and Al
B.S,Q,, and LİF
C.N204, , and LIF
D.NQ, Fe, Sr, and AL
PLEASE HELP IM IN CLASSS

Which of the substances observed are elementsA S Fe O Sr and AlBSQ and LİFCN204 and LIFDNQ Fe Sr and AL PLEASE HELP IM IN CLASSS class=

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04-09-2019

Answer:

A. are all elements the rest are combinations of elements

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