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Yanka [14]
3 years ago
9

Which of the following statements is true? Hydroelectric power plants do not impact the environment.

Chemistry
2 answers:
Andrej [43]3 years ago
7 0
Most of the world's population lives in industrial areas.
Maru [420]3 years ago
5 0

Answer:

Fossil fuels take millons of years to form

Explanation:

Fossil fuels are organic compounds derived from carbon. They come from the slow decomposition of the organic matter that inhabited the planet millions of years ago, such as animals and plants.

This process takes millions of years, and that is why they are cataloged as non-renewable fuels.

The other answers are incorrect because hydroelectric plants generally produce noise, which is cataloged as a negative environmental impact.

It cannot be assured that the majority of the world's population lives in industrial areas. And finally, the production of electricity in the U.S. cannot have remained constant since 1940 due to the constant growth of its population.

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Solve for a, b, c, AND d<br> d<br> C<br> 84°<br> 930<br> 970<br> b
olga55 [171]

Answer:

a = 87

b = 83

c = 96

d = 86

5 0
3 years ago
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Compare the amount of heat required to vaporize a 200.-gram sample of H2O(ℓ) at its boiling point to the amount of heat required
stira [4]
The enthalpy of vaporization of H2O is higher than the enthalpy of fusion of H2O, therefore vaporizing the same mass of H2O would require more heat/energy than melting the same mass of H2O.
6 0
3 years ago
Write the chemical formula, condensed formula, and Lewis structure for each of the following hydrocarbons:
son4ous [18]

Explanation:

Here I send you all the 3 elements that you are asking for.

Notice that first on the left you will find lewis structure, then condensed and finally chemical formula of each of the compound you enlisted.

5 0
3 years ago
What fraction of the enzymes will be active at ph=4.07 explain?
Ratling [72]
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8 0
3 years ago
At elevated temperatures, molecular hydrogen and molecular bromine react to partially form hydrogen bromide:
gayaneshka [121]

<u>Answer:</u> The moles of bromine gas at equilibrium is 0.324 moles.

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}        .......(1)

Calculating the initial moles of hydrogen and bromine gas:

  • <u>For hydrogen gas:</u>

Moles of hydrogen gas = 0.682 mol

Volume of solution = 2.00 L

Putting values in equation 1, we get:

\text{Molarity of solution}=\frac{0.682mol}{2.00L}=0.341M

  • <u>For bromine gas:</u>

Moles of bromine gas = 0.440 mol

Volume of solution = 2.00 L

Putting values in equation 1, we get:

\text{Molarity of solution}=\frac{0.440mol}{2.00L}=0.220M

Now, calculating the molarity of hydrogen gas at equilibrium by using equation 1:

Equilibrium moles of hydrogen gas = 0.566 mol

Volume of solution = 2.00 L

Putting values in equation 1, we get:

\text{Molarity of solution}=\frac{0.566mol}{2.00L}=0.283M

Change in concentration of hydrogen gas = 0.341 - 0.283 = 0.058 M

This change will be same for bromine gas.

Equilibrium concentration of bromine gas = (\text{Initial concentration}-\text{Change in concentration})=0.220-0.058=0.162M

Now, calculating the moles of bromine gas at equilibrium by using equation 1:

Molarity of bromine gas = 0.162 M

Volume of solution = 2.00 L

Putting values in equation 1, we get:

0.162M=\frac{\text{Moles of bromine gas}}{2.00L}\\\\\text{Moles of bromine gas}=(0.162mol/L\times 2.00L)=0.324mol

Hence, the moles of bromine gas at equilibrium is 0.324 moles.

5 0
3 years ago
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