All the given species have the same charge except peroxide.
<h3>Charges on ions</h3>
- The charge on monohydrogen phosphate is negative because of its formula,
.
- The charge on permanganate is negative. The formula is

- The charge of oxide (
) is negative.
- The charge on peroxide is ( R−O−O−R) is neutral.
- The charge on oxalate,
, is negative.
Thus, only peroxide is unique.
More on charges on ions can be found here: brainly.com/question/11938054
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To find the velocity, you would have to divide the meters given by the seconds given.
500 meters / 50 seconds = 10 meters per second.
Your answer would be 10 m/s
Hope this helps!
The number of protons is the Atomic number
Answer:

Explanation:
Percent ratio is the ratio of the actual yield to the theoretical yield. The formula is below.

The reaction of sodium and chlorine should theoretically yield 12.5 grams, but the actual yield was 13.0 grams.
- actual yield= 13.0 g
- theoretical yield = 12.5 g
Substitute these values into the formula.

Divide.

Multiply.

For this reaction, the percent yield is 104%