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Ivahew [28]
3 years ago
10

What is the mass number for an atom with 5 protons 6 neutrons and 5 electrons

Chemistry
1 answer:
mash [69]3 years ago
5 0

Answer:

10.811 atomic mass unit

Explanation:

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Answer:

Promotes Stellar Formation:

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What method would you use to obtain pure water from a mixture of water and ink
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Explanation: Separate ink from water using a process called distillation. This is a process of separating two substances mixed together. Water vaporizes at a lower temperature than the ink pigment so if you heat them, the water evaporates, leaving the ink pigment in the flask.

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8 0
3 years ago
What is the molarity of 200 mL of solution in which 2.0<br> molesof sodium bromide is dissolved?
vodomira [7]

Answer:

10 M

Explanation:

Molarity -

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity

V = volume of solution in liter ,

n = moles of solute ,

From the question,

V = 200mL

Since, 1L = 1000mL ,

1 mL = 0.001 L

Hence,

V = 200mL = 0.2 L

n = 2.0 mol

Hence, to calculate the molarity of the solution, the above formula can be used as -

M = n / V

M = 2.0 mol / 0.2 L = 10 M

8 0
3 years ago
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