Natural abundance of oxygen I think
Answer:
The independent variable is the height of the ball that bounces.
<span>remember that all elements want to have no valence electrons, they want to be like the noble gases.
Oxygen has six valence electrons, which means that it needs to gain two to become stable.
it takes much more energy for oxygen to lose its 6 valence electrons than it would be to gain 2.
>>When atoms form compounds, they become stable
hope this helps
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A 0.9621 g sample, whose mass percent of hydrogen peroxide is 1.17% requires 11.07 mL of 0.0200 M KMnO₄ to react completely.
Let's consider the balanced equation for the reaction between H₂O₂ and KMnO₄.
2 KMnO₄ + 3 H₂O₂ → 3 O₂ + 2 MnO₂ + 2 KOH + 2 H₂O
11.07 mL of 0.0200 M KMnO₄ react. We can calculate the reacting mass of H₂O₂ considering that:
- The molar ratio of KMnO₄ to H₂O₂ is 2:3.
- The molar mass of H₂O₂ is 34.01 g/mol.

0.0113 g of H₂O₂ are in 0.9621 g of the sample. The mass percent of H₂O₂ in the sample is:

A 0.9621 g sample, whose mass percent of hydrogen peroxide is 1.17% requires 11.07 mL of 0.0200 M KMnO₄ to react completely.
Learn more: brainly.com/question/9743981
Answer:
c
Explanation:
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