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kicyunya [14]
4 years ago
7

Ms. Copeland's students built this model of an aquifer. Once built they added water and then on the top of the "hill" poured a s

mall amount of used black motor oil simulate chemical pollution. They waited an hour and then used a long eye-dropper to remove some water from their well (the straw). The water did not contain the motor oil (pollution) but the students noticed that the oil was covering most of the pebbles in their model. Ms. Copeland asked her students to devise a method to remove the oil from the aquifer. What solution would you predict to be the most reasonable plan?
Chemistry
1 answer:
Klio2033 [76]4 years ago
3 0

Answer:

C) Remove some of the water. Cover the rocks with an absorbent like kitty litter to remove the oil. Remove the dirty kitty litter. Add the water back.

Explanation:

Oil and water do not mix. The oil will cover the water's surface and anything in the water. So the best idea would be to absorb the oil from the system.

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What is the relationship (formula) and proportionality<br> between frequency, and wavelength?
Amanda [17]

Answer:

Frequency and wavelength are inversely proportional. c=f⋅λ (The speed of light is directly proportional to f and λ)

5 0
3 years ago
Identify the highest energy molecular process that occurs when a molecule absorbs a microwave photon.
ElenaW [278]

The question is incomplete, the complete question is;

Identify the highest energy molecular process that occurs when a molecule absorbs a microwave photon

a) electronic excitation

b) bond breakage

c) molecular vibration

d) molecular rotation

Answer:

molecular rotation

Explanation:

Microwaves are part of the electromagnetic spectrum. They are lower energy, lower frequency radiation.

When molecules absorb infrared radiation, they transition between the rotational states of the molecule.

Hence, the highest energy molecular process that occurs when a molecule absorbs a microwave photon is molecular rotation.

8 0
3 years ago
Why did construction of the Panama Canal become
sukhopar [10]

Answer:

(4) The navy needed a faster way to move ships between the Atlantic and Pacific Oceans.

Explanation:

The Panama Canal was an artificial eighty-two (82) kilometers water-way that connects the Atlantic Ocean with the Pacific Ocean in Panama and it enhanced maritime trades.

The construction of the Panama Canal became more important to the United States after the Spanish-American War because the navy needed a faster way to move ships

between the Atlantic and Pacific Oceans.

5 0
4 years ago
Atoms of different chemical elements can be differentiated based on the number of.
Alona [7]

The atoms of different chemical elements can be differentiated based on the number of protons.

Each chemical element is differentiated by his number of protons. This number of protons is also knowing as atomic number and it is represented by the letter (Z).

The atomic number represented the number of protons in the nucleus of an element. For example:

  • The element that has only 1 proton in his nucleus is Hydrogen atom.
  • The element that has 2 protons in his nucleus is Helium atom.

<h3>What is an atom?</h3>

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

Learn more about the atom at: brainly.com/question/17545314

#SPJ4

3 0
2 years ago
An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. what are its atomic number, atomic mass, and net charge?
Murrr4er [49]

Answer:

Z=26, A = 56, charge +3.

Explanation:

The atomic number is represented by Z. Is equal to the total number of protons that the atom has.  Z=26.

The atomic mass is represented by A. The number results from the total sum of protons and neutrons of an atom.  Both particles have a weight of 1 uma, are in the nucleus and give the mass to the atom.

Mass number (A) = atomic number (Z) + number of neutrons (N)

                        A = 26 + 30

                        A = 56

The net charge of the atom can be calculated by subtracting the negative charges from the positive ones. The positive charges come from the protons and the negative ones from the electrons.

26-23=3

This iron ion has a positive charge +3.

6 0
3 years ago
Read 2 more answers
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