maddied2443
07.11.2020 •
Chemistry
A block with a volume of 24 cm3 has a mass of 1200 g. What is the density of this block
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Ответ:
Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer as
0.02 g/cm³Hope this helps you
Ответ:
The complete and balance the equation for this reaction in acidic solution is given by:
Explanation:
Oxidation reaction of chromium to chromate in acidic medium:
Add 4 molecules of water on the left hand side to balance the oxygen:
Now balance hydrogen atoms by adding hydrogen ions on opposite to the side where water molecule are present .
In last, to balance the charge on the both sides add electrons to sides where positive charge is more.
Reduction reaction of silver ions to silver in acidic medium:
By [1] + 6 × [2] , we will get the balance equation for this reaction in acidic solution: