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weqwewe [10]
4 years ago
9

Which scientist's experiments proved the existence of the nucleus? Niels Bohr's J.J. Thomson's Robert Millikan's Ernest Rutherfo

rd's
Chemistry
1 answer:
bezimeni [28]4 years ago
5 0

Answer: Ernest Rutherford.

Explanation:

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What is the solution to the problem expressed to the correct number of significant figures
quester [9]

I don't know what the problem is, but here are some rues to help you out:

  1. All non-zero figures are significant
  2. When a zero falls between non-zero digits, that zero is significant.
  3. When a zero falls after a decimal point, that zero is significant.
  4. When multiplying and dividing significant figures, the answer is limited to the number of sig figs equal to the least number of sig figs in the problem.
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4 years ago
Differentiate between Mendeleev's Period law and Modern Periodic law<br>​
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<h2>see in the attachment hope it helps you</h2>

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3 years ago
Ptrpared a solution of sodium chloride (NaCl) by measuring out 49.Umol of sodium chloride into 150. ML. Volumetric flask and fil
ArbitrLikvidat [17]

Answer:

The answer to your question is below

Explanation:

Data

Substance = NaCl

moles of NaCl = 49

volume = 150 ml

Process

Molarity is a unit of concentration that makes a relation of the moles of a substance and the volume.

Molarity = moles / volume (L)

1.- Convert 150 ml to L

                  1000 ml ------------------ 1 L

                     150 ml -----------------  x

                      x = (150 x 1) / 1000

                      x = 0.15 L

2.- Substitution

Molarity = 49 / 0.15

Molarity = 326. 7

I have a doubt if the number of moles is 49 moles or 49μmoles            

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The formula for dichlorine monoxide
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Cl2O but the two is a little two after Cl
6 0
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Sergeu [11.5K]

Answer:slowly

Explanation: when a gas is being cooled then its particles are gonna slowly stop moving to form a liquid

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