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zalisa [80]
3 years ago
15

With a gas station on almost every corner, it’s hard to imagine life without fossil fuels. Fossil fuels power everything from ho

mes to businesses to cars. But fossil fuels are nonrenewable resources and have negative effects on the environment. To reduce our dependence on these fuels, cleaner energy alternatives have gained popularity in recent years.
One possible alternative is geothermal energy. Geothermal power plants drill deep wells underneath Earth’s surface to pump water that is heated by magma. The steam from this hot water spins a turbine that is hooked up to a generator that produces electricity. The cold water is then pumped back into Earth to be reheated.

Do you think geothermal energy is a renewable resource? Why or why not? What are the benefits of using this energy to power homes and businesses? Can you think of any consequences to communities or the surrounding environment?
PLZZZ SEND LINK TO GOOD WEBSITE FOR ANSWER OR TELL ME!!
Chemistry
2 answers:
kati45 [8]3 years ago
8 0

I will play free fire at a computer

Reika [66]3 years ago
7 0

Answer:

Its renewable

Explanation:

Geothermal energy is renewable as long as theres an infinite amount of magma to produce the energy. It is a rather expensive process, however, and can take up a ton of space. In my opinion, its a good source for energy if theres a cheap and easy way to tranfer the energy to homes

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D. the distance between the objects
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Which of these statements are not true about a chemical reaction rate?
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A potassium bromide solution is 8.30% potassium bromide by mass and its density is 1.03 g/ml. what mass of potassium bromide is
pshichka [43]

<u>Answer:</u> The mass of potassium bromide present in 41.2 mL of solution will be 3.522 grams.

<u>Explanation:</u>

We are given that KBr is present in 8.3% KBr solution, which means that 8.3 grams of potassium bromide is present in 100 gram of the solution.

To calculate the volume of KBr, we use the formula:

Density=\frac{Mass}{Volume}

Mass of the solution = 100 grams

Density of KBr solution = 1.03g/mL

Volume of the solution = ? mL

Putting values in above equation, we get:

1.03g/mL=\frac{100g}{Volume}\\\\Volume=97.08mL

Now, to calculate the mass of KBr in 41.2mL of the solution, we use unitary method.

In 97.08 mL of solution, mass of KBr present is 8.3 grams.

So, 41.2 mL of solution will contain = \frac{8.3g}{97.08mL}\times 41.2mL=3.522g of KBr.

Hence, the mass of potassium bromide present in 41.2 mL of solution will be 3.522 grams.

7 0
3 years ago
A cubic piece of platinum metal (specific heat capacity = 0.1256 J/°C・g) at 200.0°C is dropped into 1.00 L of deuterium oxide ('
polet [3.4K]

Answer:

a=5.65cm

Explanation:

Hello,

In this case, for this heat transfer process in which the heat lost by the hot platinum is gained by the cold deuterium oxide based on the equation:

Q_{Pt}=-Q_{Deu}

We can represent the heats in terms of mass, heat capacities and temperatures:

m_{Pt}Cp_{Pt}(T_f-T_{Pt})=-m_{Deu}Cp_{Deu}(T_f-T_{Deu})

Thus, we solve for the mass of platinum:

m_{Pt}=\frac{-m_{Deu}Cp_{Deu}(T_f-T_{Deu})}{Cp_{Pt}(T_f-T_{Pt})} \\\\m_{Pt}=\frac{-1.00L*1110g/L*4.211J/(g\°C)*(41.9-25.5)\°C}{0.1256J/(g\°C)*(41.9-200.0)\°C} \\\\m_{Pt}=3860.4g

Next, by using the density of platinum we compute the volume:

V_{Pt}=\frac{3860.4g}{21.45g/cm^3}\\ \\V_{Pt}=180cm^3

Which computed in terms of the edge length is:

V=a^3

Therefore, the edge length turns out:

a=\sqrt[3]{180cm^3}\\ \\a=5.65cm

Best regards.

6 0
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