which contributes to acid rain? A. burning fossil fuels B. nuclear power C. solar power D. hydroelectric power

Answers

Answer 1

Answer: The answer is (A) burning fossils fuels releases excess amounts of CO2 ( Carbon dioxide) which reacts with H2O in the atmosphere.
CO2 + H2O -> H2CO3

H2CO3 is known as carbonic acid.
Carbonic acid contributes to problems such as ocean acidification and can dissolve limestone ( CaCO3) sculptures.
Shown by this reaction H2CO3 + CaCO3 -> Ca(HCO3)2 producing Calcium Hydrogen Carbonate.

There are also different causes of acid rain such as Sulfur Dioxide (SO2) and Nitrogen Oxide (NO) which can cause respiratory problems.

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Three quarters of the elements are

Answers

Answer:

Metals

Explanation:

A student is trying to calculate the density of an ice cream cone. She already knows the mass, but she needs to determine the volume as well. Which of the following formulas can be used to calculate the volume of the cone?V equals four-thirds times pi times r cubed
V equals one-third times pi times r squared times h
V = s3
V = πr2h

Answers

Answer: Option 1 --- V equals four-thirds times pi times r cubed

Explanation:

Letter
Using your research and data, you will write a three-paragraph letter to the park ranger detailing your findings.
Be sure to include the following in your letter:
• How is the Burmese python impacting the Everglades ecosystem?
• Why is it important to control the Burmese python population in Everglades
National Park?
• Based on your research, what method of controlling the python population do you believe would be most effective? Create a plan based on your chosen method.

Three of the primary components of air arecarbon dioxide, nitrogen, and oxygen. In a
sample containing a mixture of only these
gases at exactly one atmosphere pressure, the
partial pressures of carbon dioxide and ni-
trogen are given as Pco, = 0.285 torr and
PN = 634.034 torr. What is the partial pres-
sure of oxygen?
Answer in units of torr.

Answers

Answer:

125.681 torr

Explanation:

The formula to calculate the partial pressure of oxygen:

P(O2) = Pcommon - PCO2 - PN2

1 atm = 760 torr

Therefore you need to find the partial pressure of oxygen:

P(O2) = 760 torr -0.285 torr - 634.034 torr =130.013 torr

- Hope that helped!

Would sodium make a good sauce pan?

Answers

The answer is No sodium would not make a good saucepan

Given the balanced ionic equation:3Pb2+ + 2Cr ==> 3Pb + 2Cr3+
What is the number of moles of electrons gained by 3.0 moles of lead ions?
(1) 5.0 mol (3)3.0 mol
(2) 2.0 mol (4) 6.0mol

Answers

Answer : The correct option is, (4) 6.0 mol

Explanation :

The given balanced ionic equation is,

$3Pb^(2+)+2Cr\rightarrow 3Pb+2Cr^(3+)$

In this reaction, lead undergoes reduction and chromium undergoes oxidation.

Oxidation reaction : It is the reaction in which a substance looses its electrons. In this oxidation state increases.

Reduction reaction : It is the reaction in which a substance gains electrons. In this oxidation state decreases.

Half reactions of oxidation and reduction are :

Oxidation : $2Cr\rightarrow 2Cr^(3+)+6e^-$

Reduction : $3Pb^(2+)+6e^-\rightarrow 3Pb$

From the reduction reaction, we conclude that 6 moles of electrons gained by the 3 moles of lead ions.

Hence, the correct option is, (4) 6.0 mole

answer: 6......................

Why were the proton and electron discovered before the neutron

Answers

The proton and electron were discovered before the neutron because the proton and electron contain energy and charges. Hope this helped.

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A rigid canister holds 50.0 L of helium gas at 32.0°C and 49.9 kPa. The gas is cooled until the pressure reaches 14.2 kPa. What is the Kelvin temperature of the helium?

The Center of the Adam is called

The p subshell can hold up to eight electrons in an atom (2 points)True or false?

Which of the following is not an option for solving the world water crisis? a. desalination b. finding new sources of freshwater c. reducing overconsumption d. wastewater treatment plants Please select the best answer from the choices provided A B C D