Question

Write a balanced oxidation-reduction equation (in acidic solution) for the following:
\[\large{C_2O_4^{2-}+Cr_2O_7^{2-}\rightarrow CO_2+Cr^{3+}}\]

Answer 1

do you have any idea ? on the right side there is one carbon when on the left side there are 2 carbons - what you need to do ? or on the left side there are 2 croms and on the right side just 1 Cr. how you balance it ?

Answer 2

kitty how you ve learned this ? when there are in the left side 2 carbons like in the above your preblem and in the right side there is just one carbone so you need multiply it in the right side by 2 and in this way the carbons from every two parts will be balanced and will get this form

C_2O_4 +Cr_2O_7 -> 2CO_2+Cr

Answer 3

so now try getting the equilibru of oxigens - any idea for this way ?

Answer 4

I don't understand what you refer to. Sorry! I responded very late.

I'll close the question. I got it anyway. :)

Answer 5

In what contemporary genre is an essay such as Joseph Bruchac's u201cKeepers of the Earthu201d memoir best classified?
A.

Answer 6

There was a story that the present box had been made with some pieces of the box that had preceded it, the one that had been constructed when the first peop

Answer 7

Find the derivative of

Answer 8

PLEASE HELP!!
Complete the analogy below.
amplitude : loudness :: frequency : _________
A.

Answer 9

PLEASE HELP!!
Sound waves can best be described as _________.
A. opaque
B. polarized
C.

Answer 10

Which of the following major contributions were made by Maury?

creating navigati

Answer 11

Cousteau and Gagnan _____.

invented SCUBA
lived in Sealab II
developed u201csign

Answer 12

A scientist is studying the effect on human health of bacteria that live in the human intestine.

Answer 13

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Answer 14

Find the derivative dy/dx if

Answer 15

Alice wanted to compare birthday cake prices in two supermarkets. She wrote down the daily prices for a few days and found that the difference of the two sa

Answer 16

which of the following was directly caused by germanys invasion of Belgium

Answer 17

How do Hallyu2019s memories help advance the plot?

They suggest that Hally is afraid of his father.

Answer 18

math help pls

Answer 19

"If we fight the stranger, we shall hit our brothers and perhaps shed the blood of a clansman.

Answer 20

... help please? am i right?
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Answer 21

Solve.
33=8^5z+4

Answer 22

A car is moving southwest at a velocity of 10 meters per second. Five seconds later, it's going 40 meters per second.

Answer 23

If you run 10 km east and then turn around and run 7 km west, how much total distance have you travelled?
A.

Answer 24

Which of the following is a vector measurement?
A. 0.08 g/L
B. 6.5 m/s down
C. 45 m/s slowly
D. 15 km/hr