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3 years ago

A discharging lead-acid battery is best described as

Chemistry

2 answers:

dalvyx [7]3 years ago

6 0

Answer:

chemical cells that produce an electrical current

Explanation:

lead acid battery is a type of chemical cell, that discharges to produce electrical current.

lead acid battery uses lead peroxide for the conversion of the chemical energy into electrical power when it is discharging. It is also rechargeable, that is, it can convert electrical energy back to chemical energy during charging.

Thus, a discharging lead acid battery is best described as a chemical cells that produce an electrical current

yKpoI14uk [10]3 years ago

6 0

Answer:

The correct option is;

2.) Chemical cells that produce an electric current

Explanation:

A discharging lead-acid battery is an electrochemical cell that produces electrical energy through the chemical reaction taking place at the battery electrodes which have lead as the anode and lead oxide as the cathode which result in the flow of an electric current, thereby converting chemical energy of the lead, lead oxide and aqueous sulfuric acid system into electrical energy, therefore, it is a chemical cell that produces an electric current.

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For the chemical reaction:

e-lub [12.9K]

Answer:

35.1 g

Explanation:

Given data:

Mass of Al(OH)₃ = 100 g

Mass of water formed = ?

Solution:

Chemical equation:

2Al(OH)₃ → Al₂O₃ + 3H₂O

Number of moles of Al(OH)₃:

Number of moles = mass/molar mass

Number of moles = 100 g/ 78 g/mol

Number of moles = 1.3 mol

now we will compare the moles of Al(OH)₃ with water.

Al(OH)₃ : H₂O

2 : 3

1.3 : 3/2×1.3 = 1.95

Mass of water produced:

Mass = number of moles ×molar mass

Mass = 1.95 mol × 18 g/mol

Mass = 35.1 g

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3 years ago

A family is one another name for a group on the _____ table of elements.

zubka84 [21]

Periodic table of elements

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4 years ago

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Write the dissociation equation for, and give the proper concentrations for a 0.25M K2SO4 solution

weeeeeb [17]

Answer: $K_2SO_4\rightarrow 2K^++SO_4^{2-}$

concentration of $K^+$ = 0.50 M

concentration of $SO_4^{2-}$ = 0.25 M

Explanation:

The dissociation equation of $K_2SO_4$ is:

$K_2SO_4\rightarrow 2K^++SO_4^{2-}$

According to stoichiometry:

1 mole of $K_2SO_4$ gives 2 moles of $K^+$

Thus 0.25 moles of $K_2SO_4$ gives = $\frac{2}{1}\times 0.25=0.50$ moles of $K^+$

Similarly,

1 mole of $K_2SO_4$ gives = 1 mole of $SO_4^{2-}$

Thus 0.25 moles of $K_2SO_4$ gives = $\frac{1}{1}\times 0.25=0.25$ moles of $SO_4^{2-}$

Thus the concentration of $K^+$ and $SO_4^{2-}$ are 0.50 M and 0.25 M respectively.

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4 years ago

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slavikrds [6]

These are not questions but the directions or guide to completing your assignment.

I will provide you will with a choice of concept maps you can use:

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4 years ago

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What happens to crayons when heated?

Olin [163]

they become liquified

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3 years ago