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4vir4ik [10]
3 years ago
14

A gas effuses 4.0 times faster than oxygen (O2). What is the molecular mass of the gas?

Chemistry
1 answer:
Dovator [93]3 years ago
8 0
Hope this helps you!

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A thermometer is in a beaker of water. Which statement best explains why the thermometer reading initially increases when LiBr(s
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<span>(4) The dissolving of the LiBr(s) in water is an exothermic process</span>
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3 years ago
Although Rutherford is credited with the famous gold foil scattering experiment, he didn’t actually conduct this experiment hims
DerKrebs [107]
If he was the primary scientist doing it as he did alot of the heavy lifting then yes its ok, but i also think how the others should also me at least mentioned. Or they could just not name the experiment by a person just so its not too biased
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3 years ago
Balance the equation
snow_lady [41]

Answer:

1:13:6:10

Explanation:

answer from VNese

7 0
2 years ago
How many moles are in 75.0 grams of nitrogen gas, N2?
Westkost [7]

<u>Given:</u><u>                                                                                                                       </u>

Mass of Nitrogen (N₂) gas = 75 grams

<u>Finding the number of moles of N₂:</u><u>                                                                     </u>

We know that the molar mass of N₂ is 28 grams/mole

Number of moles = Given mass / Molar mass

Number of moles = 75 / 28

Number of moles = 2.68 moles

Hence, there are 2.68 moles in 75 grams of Nitrogen Gas

7 0
3 years ago
Electrons surround the , of an atom in various energy levels called
nasty-shy [4]

surrounds the nucleus of an atom in various energy levels called orbitals.

Explanation:

Electrons surrounds the nucleus of an atom in various energy levels called orbitals.

According to the Bohr's model of an atom, the extra nuclear space is made up of electrons in specific spherical orbits called shells or energy levels.

  • The region of a maximum probability of where an electron is located is sometimes referred to as an electron cloud or orbital.
  • Electrons move round the nucleus in certain permissible orbits.
  • An electron in an energy level posses a definite amount of energy associated with it at that level.
  • Electrons moves through the energy levels by gaining or losing energy.

Learn more:

Bohr brainly.com/question/4986277

#learnwithBrainly

7 0
3 years ago
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