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lesantik [10]
3 years ago
14

An electromagnetic device used to determine the masses of individual atoms is

Chemistry
1 answer:
xxTIMURxx [149]3 years ago
8 0
Mass spectrometry was discovered by Francis Aston, a British Physicist, in 1919. This involves separating mixtures of substances into their components and transforming them into beams of particles and subsequently, bending them with the use of electricity and magnetism to come up with a spectrum that is inherently unique for every individual atoms for easy identification.
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Which of these is an element?
Brilliant_brown [7]

Answer:

Carbon is the only element.

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What are the four symbols for physical states of reactants and products?
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Solid -(s)
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A container of gas has a volume of 3.5 L and a pressure of 0.8 atm. Assuming the temperature remains constant, what volume of ga
vovikov84 [41]
<h3>Answer:</h3>

5.6 L

<h3>Explanation:</h3>

We are given;

  • Initial volume, V1 = 3.5 L
  • Initial pressure, P1 = 0.8 atm
  • Final pressure, P2 = 0.5 atm

We are required to calculate the final volume;

  • According to Boyle's law, the volume of a fixed mass of a gas and the pressure are inversely proportional at a constant temperature.
  • That is; P α 1/V
  • Mathematically, P=k/V
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In this case;

Rearranging the formula;

V2 = P1V1 ÷ P2

     = (0.8 atm × 3.5 L) ÷ 0.5 atm

    = 5.6 L

Therefore, the resulting volume is 5.6 L

7 0
3 years ago
1. Is water an element ?
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no

Explanation:

Water is made up of oxygen and hydrogen. both of those are on the periodic table. water is not an element though

hope this helps!

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Convert 55 miles/ hour to feet/ second
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80.685 feet/second

Explanation:

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