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3 years ago

11

You see all of the following on a shelf in a battery store. Which is actually a battery, not a dry cell?

2 answers:

White raven [17]3 years ago

4 0

The answer is 1,2,3 and 4 ok this answer is correct

Black_prince [1.1K]3 years ago

4 0

Answer: Car battery

Explanation: Remote -control battery, flashlight battery and AA battery are all examples of dry cell. In a dry cell, the electrolyte is absorbed in a solid form and because o this no leakage takes place.

Car battery is actually a battery which is mainly lead-acid battery. these are rechargeable batteries and perform heavy duties. Lead-acid battery have lead and lead oxide plates immersed in sulfuric acid(electrolyte). Oxidation and reduction of lead takes place which creates a potential difference and the electric energy is generated. These batteries could be recharged when they gets discharged and could be used for longer.

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What will happen to the pH of sodium bicarbonate if vinegar is added to it?

m_a_m_a [10]

Answer:

The overall chemical reaction between baking soda (sodium bicarbonate) and vinegar (weak acetic acid) is one mole of solid sodium bicarbonate reacts with one mole of liquid acetic acid to produce one mole each of carbon dioxide gas, liquid water, sodium ions, and acetate ions. The reaction proceeds in two steps

6 0

3 years ago

For the decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °C 2 N2O54 NO2 + O2 the average rate of dis

geniusboy [140]

The average rate of formation of O2 is 4.225 × 10-4 M min-1

<h3>What is the equation of the reaction?</h3>

The equation of the reaction is given below:

2 N2O54 ----> NO2 + O2

From the equation of the reaction, 2 moles of Ibuprofen pentoxide decomposes to produce 1 mole of oxygen.

<h3>What is the average rate of formation of 02?</h3>

Rate of reaction is given as:

Moles of product formed/moles of reactants used up/ time
The ratio of mole of dinitrogen pentoxide decomposed to moles of oxygen produced is 2:1

Rate of disappearance of N2O5 = 8.45×10-4 M min-1.

Therefore, average rate of formation of O2 = 1/2 × 8.45×10-4 M min-1

Average rate of formation of O2 = 4.225 × 10-4 M min-1

Therefore, the average rate of formation of O2 is 4.225 × 10-4 M min-1

Learn more about rate of reaction at: brainly.com/question/24795637

7 0

3 years ago

Water boils at rate of ........and freeze at ........

Schach [20]

100 degree celcius and 0 degree Celsius

7 0

3 years ago

Current passes through a solution of sodium chloride. In 1.00 second, 2.68×1016Na+ ions arrive at the negative electrode and 3.9

EleoNora [17]

Answer : The current passing between the electrodes is, $1.056\times 10^{-2}A$

Explanation :

First we have to calculate the charge of sodium ion.

$q=ne$

where,

q = charge of sodium ion

n = number of sodium ion = $2.68\times 10^{16}$

e = charge on electron = $1.6\times 10^{-19}C$

Now put all the given values in the above formula, we get:

$q=(2.68\times 10^{16})\times (1.6\times 10^{-19}C)=4.288\times 10^{-3}C$

Now we have to calculate the charge of chlorine ion.

$q'=ne$

where,

q' = charge of chlorine ion

n = number of chlorine ion = $3.92\times 10^{16}$

e = charge on electron = $1.6\times 10^{-19}C$

Now put all the given values in the above formula, we get:

$q'=(3.92\times 10^{16})\times (1.6\times 10^{-19}C)=6.272\times 10^{-3}C$

Now we have to calculate the current passing between the electrodes.

$I=\frac{q}{t}+\frac{q'}{t}$

$I=\frac{4.288\times 10^{-3}}{1.00}+\frac{6.272\times 10^{-3}}{1.00}$

$I=1.056\times 10^{-2}A$

Thus, the current passing between the electrodes is, $1.056\times 10^{-2}A$

4 0

3 years ago

Please help! you are amazing! also brainliest :)

Ede4ka [16]

im pretty sure its A if i did all my reasearch right.

hope this helps luv. <3

8 0

3 years ago

Read 2 more answers