Answer:
Reducing agent: nitrogen.
Oxidizing agent: chromium.
Explanation:
Hello,
In this case, the first step is to rewrite the undergoing chemical reaction indicating the oxidation state for each atom as shown below:
In such a way, we observe the following half-reactions:
* Reduction as chromium undergoes a decrease in its oxidation state:
* Oxidation as nitrogen undergoes an increase in its oxidation state:
In such a way, we state that the nitrogen is the reducing agent as it is oxidized and chromium the oxidizing agent as it is reduced, therefore, the balanced chemical reaction turns out:
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KOH and LiOH are examples of bases. All bases end in OH
Hope this helps
Answer:
Cloudy nights can be warmer than clear nights because clouds trap heat absorbed by Earth during daylight hours.
Answer:
221.37 u
Explanation:
The formula for the calculation of the average atomic mass is:
Given that:
For first isotope:
% = 65.51 %
Mass = 223.95 u
For second isotope:
Since the element has only 2 isotopes, so the percentage of second is 100 - first percentage.
% = 100 % - 65.51 % = 34.49 %
Let, Mass = x u
Given, Average Mass = 223.06 u
Thus,
Solving for x, we get that:
x = 221.37 u
<u>Thus mass of second isotope = 221.37 u</u>
Density=mass/volume
density=45/26.4
density=1.7g/ml