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Genrish500 [490]
3 years ago
11

In the lead storage battery, what are the charges on the lead species that are reactants or products in reactions that take plac

e at the anode and cathode?
A) 2+ and 4+
B) 0 and 2+
C) 0 and 4+
D) 0, 2+ and 4+
E) 0, 2+ 3+ and 4+
Chemistry
1 answer:
Aleksandr-060686 [28]3 years ago
5 0

Answer:

D) 0, 2+ and 4+

Explanation:

Lead storage battery consists of metallic lead and lead(IV)oxide in a bath of sulphuric acid.

The negative plate (Cathode) consists of metallic lead in the battery while the positive plate (Anode) consists of Lead(IV)Oxide (PbO2). The liquid in which these plates are suspended in is an aqueous medium of Sulphuric acid (H2SO4).

Negative plate reaction: Pb(s) + HSO4–(aq) → PbSO4(s) + H+(aq) + 2e–

Positive plate reaction: PbO2(s) + HSO4–(aq) + 3H+(aq) + 2e– → PbSO4(s) + 2H2O(l)

Combining these two reactions, one can determine the overall reaction:

Pb(s) + PbO2(s) + 2H+(aq) + 2HSO4–(aq) → 2PbSO4(s) + 2H2O(l)

Pb is in 0 valent state. PbO2 has Pb with 4+ valency. PbSO4 has Pb with 2+ valency.

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An allylic carbocation is a reactive intermediate in the reaction of 1,3-diene with her, resulting in 1,4-addition.

<h3>What is carbocation?</h3>
  • A molecule called a carbocation has three bonds and a positively charged carbon atom.
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A motorcycle travels 817 meters in 19 seconds. what is its average speed?
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hope it helps!
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Why are mole ratios important to stoichiometry calculations?
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3 years ago
Annie has a soccer ball and a kickball she kicks each ball with the same force the soccer ball accelerates at 3 m/s to the secon
Alexxandr [17]

Answer:

Because of less weight kick ball has more acceleration.

Explanation:

Acceleration of kick ball:

5 m/s

Acceleration of soccer ball:

3 m/s

Newton's second law:

According to newton's second law the acceleration of object depends upon two variables.

1) Mass of object

2) Force acting on it

Mathematical expression:

a = f/m

a = acceleration

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The force on balls are same thus the acceleration is depend upon the masses of balls.

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