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kifflom [539]
3 years ago
6

Which of the following is a common groundwater contaminant?

Chemistry
2 answers:
Alenkinab [10]3 years ago
4 0

Answer:

it is nuclear waste i guess i am not 100 percent plz verify it before

The significant sources of contamination in groundwater are farming chemicals, septic waste, landfills, uncontrolled hazardous waste, storage tanks, and atmospheric pollutants.

thanks

love history [14]3 years ago
3 0

Answer:

it is B) nuclear waste

Explanation: hope this helped

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List the number of atoms for each element in this compound: NH3 Nitrogen: 4, 3, 2 or 1 Hydrogen: 4 3 2, or 1 ??
guapka [62]
<h3>Answer:</h3>

1 Nitrogen atom and 3 Hydrogen atoms

<h3>Explanation:</h3>
  • A molecule is the smallest particle of an element or a compound that has the properties of the element or the compound.
  • Molecules of elements are made up of similar atoms while those of compounds are made up of different atoms from different elements.
  • Compounds are made up of atoms of different elements.
  • For example, NH₃ is made up of one nitrogen atom and three ammonia atoms, water(H₂O) is made up of two hydrogen atoms and one oxygen atom.
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3 years ago
What mass of sodium chloride is needed to prepare 200 ml of a 0.1 M solution
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Answer:

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Explanation:

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<em>M = (mass/molar mass)solute x (1000/ V)</em>

M = 0.1 M, mass = ??? g, molar mass of NaCl = 58.44 g/mol, V = 200.0 mL.

∴ mass of NaCl = (M)(molar mass)(V)/1000 = (0.1 M)(58.44 g/mol)(200.0 mL)/1000 = 1.168 g ≅ 1.17 g.

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Answer:

Planck made many contributions to theoretical physics, but his fame rests primarily on his role as originator of the quantum theory. This theory revolutionized our understanding of atomic and subatomic processes, just as Albert Einstein's theory of relativity revolutionized our understanding of space and time

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