What is the ratio by atoms of elements present in technetium (VII) peroxide? (peroxide is a polyatomic ion) 1:7 2:8

Question

What is the ratio by atoms of elements present in technetium (VII) peroxide? (peroxide
is a polyatomic ion)
1:7
2:8
4:9
3:1

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Orla Orla 3 years 2021-09-04T09:38:27+00:00 1 Answers 4 views 0

Answers ( )

  1. ngocdiep
    0
    2021-09-04T09:39:36+00:00
    Reply

    Answer: 1:7

    Explanation: 2 Tc^+7 + 7 O2^-2 -> Tc2 (O2)7

    Also 2 Tc to 14 O

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )