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LekaFEV [45]
2 years ago
8

Which water usage uses the least amount of water in a year in the United States

Chemistry
1 answer:
statuscvo [17]2 years ago
4 0

Answer: a

Explanation:

Industry uses only about 18% while the others use around 70-90% of water.

YW!!! please mark branlest!!!! =^.^=

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3. If the sun heats my car from a temperature of 20.0 C to a temperature of 55° C, what will the
Katyanochek1 [597]

Answer:

I would try but i just need points good luck tho

5 0
3 years ago
Calculate the number of pounds of CO2CO2 released into the atmosphere when a 22.0 gallon22.0 gallon tank of gasoline is burned i
Gnesinka [82]

Answer:

391.28771 pounds of carbon-dioxide was released into the atmosphere when 22.0 gallon tank of gasoline is burned in an automobile engine.

Explanation:

Density of the gasoline ,d= 0.692 g/mL

Volume of gasoline in an tanks,V = 22.0 gallons = 83,279.02 mL

Let mass of the gasoline be M

Density= \frac{Mass}{Volume}

M = V × d = 83,279.02 mL × 0.692 g/mL=57,629.081 g

Given that gasoline is primarily octane.

2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O

Mass of octane burnt in the tank = M = 57,629.081 g

Moles of octane =\frac{57,629.081 g}{114.08g/mol}=505.1637 mol

According to reaction, 2 moles of octane gives 16 moles of carbon-dioxide.

Then 505.1637 mol of octane will give:

\frac{16}{2}\times 505.1637 mol=4,041.3100 mol of carbon-dioxide

Mass of 4,041.3100 mol of carbon-dioxide:

4,041.3100 mol × 44.01 g/mol = 177,858.05 g

Mass of carbon-dioxide produced in pounds = 391.28771 pounds

391.28771 pounds of carbon-dioxide was released into the atmosphere when 22.0 gallon tank of gasoline is burned in an automobile engine.

3 0
4 years ago
In this salt water floating egg experiment, how will you use these calculations to find the density of the egg? I’m really confu
Agata [3.3K]

Glass 1 Freshwater  

The egg went directly to the base of the glass. Consequently it has sunk and did not drift  

237.0  

237 (1 glass)  

1.000

Glass 2  

Water with 2 teaspoons of salt  

A similar outcome for glass 2 as container 1 when egg was set into the container it sank to the base.  

248.4  

237  

1.048

Glass 3  

Water with 3 teaspoons of salt  

In reference to glass 1 and 2 the egg sank to the base for a third time.  

254.1  

237  

1.072  

Glass 4  

Water with 4 teaspoons of salt  

The egg remained gliding to where a little bit of the egg was standing out on the top, and when pushed down the egg returned up.  

259.8  

237  

1.096

Hope this helps!

5 0
3 years ago
This is a summary of the findings of an experiment
olga nikolaevna [1]
Conclusion is the answer you are looking for
5 0
4 years ago
When two monosaccharides condense to form a disaccharide, what is the other product of the reaction? enter the molecular formula
koban [17]

When two monosaccharides combine to make a disaccharide, water is the byproduct.

<h3>What are monosaccharides ?</h3>

The most fundamental building blocks from which all carbohydrates are constructed are monosaccharides, commonly known as simple sugars. They are the most basic types of sugar. They are typically crystalline solids, colorless, and soluble in water.

These three monosaccharides—glucose, fructose, and galactose—are crucial for nutrition. Six carbon atoms, twelve hydrogen atoms, and six oxygen atoms make up each single sugar molecule.

To learn more about monosaccharides from the given link:

brainly.com/question/13416862

#SPJ4

4 0
1 year ago
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