Chemistry, 04.06.2021 17:20 xcoder3957

Which of the following statements is true? With an explanation

A)

Since 1940, the production of electricity in the U. S. has not increased.

B)

Fossil fuels take millions of years to form.

C)

Most of the world's population lives in industrial areas.

D)

Hydroelectric power plants do not impact the environment.

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 09:50

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Answers: 1

Answer

Chemistry, 22.06.2019 20:20

Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)

Answers: 1

Answer

Chemistry, 23.06.2019 13:30

The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)→h2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 °c .) what mass of hydrogen gas is collected? answer in appropriate significant figures

Answers: 3

Answer

Chemistry, 23.06.2019 15:30

Ms. sullivan's class is designing a miniature roller coaster. after first setting it up, they find that it didn't have enough speed to go through the loop de loop. instead of taking out the loop, they decide to increase the height of the first hill the coaster goes down, and this adds the speed needed to make it through the loop. what would be a drawback to this plan in real life? a) no one likes loop de loops. b) there is no downside to this plan. c) a higher hill means a scarier ride. d) a higher hill takes more time and material to build.

Answers: 1

Answer

You know the right answer?

Which of the following statements is true? With an explanation

A)

Since 194...

Questions