Answer:
Chemists use beakers, flasks, burets and pipets to measure the volume of liquids.
Explanation:
2.20x1025atoms is the correct answer
Answer:
The half reaction occurring at this electrode will be given as:

Explanation:
In electrochemical cell reduction occurs at anode.
But the gold wire is connected to the positive terminal of the battery which means that gold wire will act as a cathode nad reduction will take place
The half reaction occurring at this electrode will be given as:

(Na2Cr2O7) all the numbers are bellow not over