The Answer is "None of the Above"
1. C
2. B
3. B
4. sorry, but we cant see the pictures. thats all I can do.
-Chad
<u>Answer:</u>
a. Oxidising agent: Cl₂
b. Reducing agent: NaBr
c. Oxidised: NaBr
d. Reduced: Cl₂
e. Oxidation numbers before reaction: Cl= 0, Na= +1, Br= -1
f. Oxidation numbers after reaction: Cl= -1, Na= +1, Br= 0
<u>Explanation:</u>
Oxidising agents reduces themselves, oxidising other elements/compounds.
Reducing agents oxidise themselves, reducing other elements/compounds.
Oxidation is the <u>loss</u> of electrons or an <u>increase</u> in oxidation number.
Reduction is the <u>gain</u> of electrons or <u>decrease</u> in oxidation number.
<span>(2) a diatomic molecule is the correct answer.
When two atoms of Br bond together, they will form bromine gas with a chemical formula of Br2. Therefore, it is called a diatomic molecule. (the word "di" means two).
Hope this helps~
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