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mash [69]
2 years ago
9

The number of neutrons in Aluminum is​

Chemistry
2 answers:
777dan777 [17]2 years ago
7 0

<em><u>the</u></em><em><u> </u></em><em><u>number</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>neutrons</u></em><em><u> </u></em><em><u>i</u></em><em><u>n</u></em><em><u> </u></em><em><u>aluminium</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>1</u></em><em><u>4</u></em>

snow_lady [41]2 years ago
7 0

Answer:

14

Explanation:

number of neutrons in an atom is difference between mass number and atomic number

atomic number of Al is 13 and mass number of Al is 27

number of neutrons = 27 - 13 = 14

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iris [78.8K]

Answer:

The second one

Explanation:

Gas pressure is caused by gas molecules bouncing off the container walls and each other. Every time a molecule changes direction because it hits a wall, the change in momentum results in a small push. Due to the large number of molecules involved, the pushes add up to a large amount of pressure.

7 0
3 years ago
The value of the atomic mass of an atom is
Marta_Voda [28]

A would be correct. Hope i helped.

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3 years ago
In order to do multiple trials of an experiment, _____. A. change your hypothesis B. do the experiment more than once C. revise
Arisa [49]

B. do the experiment more than once

Explanation:

To do a multiple trials of an experiment, it is best to do the experiment more than once.

Experimental trials are mere replication of the procedures in an experiment.

  • Most hypothesis on which experiments are based must be repeatable.
  • When experiments are repeated through several trials, their accuracy is increased.
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Learn more:

Experiment brainly.com/question/5096428

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8 0
3 years ago
A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to . He'll do this by add
erma4kov [3.2K]

Answer:

0.295 L

Explanation:

It seems your question lacks the final concentration value. But an internet search tells me this might be the complete question:

" A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to 24.0 mM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Be sure your answer has the correct number of significant digits. "

Keep in mind that if your value is different, the answer will be different as well. However the methodology will remain the same.

To solve this problem we can<u> use the formula</u> C₁V₁=C₂V₂

Where the subscript 1 refers to the concentrated solution and the subscript 2 to the diluted one.

  • 47.2 mL * 150 mM = 24.0 mM * V₂
  • V₂ = 295 mL

And <u>converting into L </u>becomes:

  • 295 mL * \frac{1 L}{1000mL} = 0.295 L

6 0
4 years ago
it takes a slug 20 minutes to travel from the grass to the trash can a trip of 15 meters. how far could the slug travel in 60 mi
bekas [8.4K]

Answer:

45 meters

Explanation:

Did the math

6 0
3 years ago
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