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harina [27]
3 years ago
10

Which substance is a reactant(s) O2 only MgO only Mg and O2 Mg only

Chemistry
1 answer:
Alchen [17]3 years ago
8 0
Reactants in all these elements are Mg and O2
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Which distinguishes chemical changes from physical changes?
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In a chemical reaction, there is a change in the composition of the substances; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.

Explanation:

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Zn, Cd, and Ag are transition metals that usually form only one monoatomic cation.

A monatomic cation is a cation made of only one atom.

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These cations form only one type of ion, while iron and copper form more than one type of cations.

Iron and copper form cations with different charges (Fe²⁺, Fe³⁺, Cu⁺, Cu²⁺).

It depends on electron configuration which type would be formed.

Electron configuration of zinc atom: ₃₀Zn 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s²

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More about transition metals: brainly.com/question/12843347

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This self evaluation helps them to better his sport.

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