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natima [27]
3 years ago
9

Describe the composition of a lead storage battery

Chemistry
1 answer:
Ulleksa [173]3 years ago
3 0
A lead battery that can be recharged, each cell contains negative plates of lead and positive plates of lead oxide.
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g Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 2.71 g of ethane i
Kamila [148]

Answer:

6.05g

Explanation:

The reaction is given as;

Ethane + oxygen --> Carbon dioxide + water

2C2H6 + 7O2 --> 4CO2 + 6H2O

From the reaction above;

2 mol of ethane reacts with 7 mol of oxygen.

To proceed, we have to obtain the limiting reagent,

2,71g of ethane;

Number of moles = Mass / molar mass = 2.71 / 30 = 0.0903 mol

3.8g of oxygen;

Number of moles = Mass / molar mass = 3.8 / 16 = 0.2375 mol

If 0.0903 moles of ethane was used, it would require;

2 = 7

0.0903 = x

x = 0.31605 mol of oxygen needed

This means that oxygen is our limiting reagent.

From the reaction,

7 mol of oxygen yields 4 mol of carbon dioxide

0.2375 yields x?

7 = 4

0.2375 = x

x = 0.1357

Mass = Number of moles * Molar mass = 0.1357 * 44 = 6.05g

8 0
3 years ago
On the fahrenheit scale, at what temperature does water boil? a. 451°f b. 264°f c. 212°f d. 100°f
taurus [48]

The temperature that water boils on the fahrenheit scale is c. 212°f.

<h3>What is Temperature conversation?</h3>

Temperature conversation is a way of converting a temperature from a unit to another using conversation scale.

Therefore, on fahrenheit scale water boils at  212°f which is equivalent to 100°C on the Celcius scale.

Learn more about Temperature conversation at;brainly.com/question/23419049

#SPJ4

5 0
2 years ago
4. How many moles of Ca(HCO3)2 are present in 4.6 liters of a 3.5 molarity<br> solution?
weeeeeb [17]
Multiply the volume by molarity to get moles.

3.5 M • 4.6 L = 16.1 mol Ca(HCO3)2
8 0
2 years ago
Imagine the earth's hydrosphere began to dry up and disappear. all of the following would be affected except
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Answer most suited would be A
6 0
3 years ago
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In your own words, summarize the steps you took to complete the lab. Explain what the test (independent) variable was, and what
alexira [117]
We can’t answer this question without any information. There is no explanation of the lab, nor is there any data.
5 0
3 years ago
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