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AnnZ [28]
3 years ago
11

What statement correctly describes gravity

Chemistry
2 answers:
Sedbober [7]3 years ago
3 0

Answer:

B

Explanation:

patriot [66]3 years ago
3 0

Answer:

B: An attractive force that acts between all objects without contact.

Explanation:

I took the test

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Balance the following half-reaction: (acidic) VO2+(aq) → V3+(aq) Express your answer as a half-reaction. Identify all of the pha
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Answer:

The balanced half reaction in an acidic medium is :

VO^{2+}(aq)+2H^+(aq)+e^-\rightarrow V^{3+}(aq)+H_2O(l)

Explanation:

VO^{2+}(aq)\rightarrow V^{3+}(aq)

While balancing the half-reaction in  an acidic medium, we will first balance oxygen atoms by adding water:

1) Adding 1 water molecule on product side to balance oxygen atoms.

VO^{2+}(aq)\rightarrow V^{3+}(aq)+H_2O(l)

Now balance hydrogen atom by adding H^+ ions.

2) Adding 2 hydrogen ions on reactant side to balance hydrogen atoms.

VO^{2+}(aq)+2H^+(aq)\rightarrow V^{3+}(aq)+H_2O(l)

Now balance the charge adding electrons on the side where positive charge is mor.

3) Adding 1 electrons on reactant side to balance charge of the overall reaction:

VO^{2+}(aq)+2H^+(aq)+e^-\rightarrow V^{3+}(aq)+H_2O(l)

The balanced half reaction in an acidic medium is :

VO^{2+}(aq)+2H^+(aq)+e^-\rightarrow V^{3+}(aq)+H_2O(l)

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