Convert 550 cm into m. Please show your work. help plssssss...

2 answers:

8 0

100 cm is equal to a meter, so we can simply divide 550 by 100
550/100= 5 1/2
5 1/2 m is your answer! =)
(10 cm was the typo, i meant to put 100 cm)

balu736 [363]3 years ago

5 0

550 Centimeters (cm)=5.5 Meters (m)

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Which of these half-reactions represents reduction?

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Answer: The half-reactions represents reduction are as follows.

$Cr_{2}O^{2-}_{7} \rightarrow Cr^{3+}$
$MnO^{-}_{4} \rightarrow Mn^{2+}$

Explanation:

A half-reaction where addition of electrons take place or a reaction where decrease in oxidation state of an element takes place is called reduction-half reaction.

For example, the oxidation state of Cr in $Cr_{2}O^{2-}_{7}$ is +6 which is getting converted into +3, that is, decrease in oxidation state is taking place as follows.

$Cr_{2}O^{2-}_{7} + 3 e^{-} \rightarrow Cr^{3+}$

Similarly, oxidation state of Mn in $MnO^{-}_{4}$ is +7 which is getting converted into +2, that is, decrease in oxidation state is taking place as follows.