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Alika [10]
3 years ago
5

Help! Locks at 12

Chemistry
2 answers:
marta [7]3 years ago
4 0

Answer is #4 (neutrons)

Explanation:

Total mass before the reaction is 236 amu. The total mass of the two elements is 233 amu. This means that there are 3 amus carried by element X. Looking at the total atomic number of the two elements after reaction, it's 92, the same as the one at the beginning. This means that element X has zero atomic number, which could only be a neutron.

In-s [12.5K]3 years ago
3 0

Answer: is 4

Explanation:

I was doing the same one

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Which of the following is the best hypothesis?
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Based on the solubility observations, which of the following pairs of cations could be distinguished by the addition of sodium c
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Based on the solubility observations, barium & aluminum could be distinguished by the addition of sodium chloride to the solutions.

<h3>What happens when NaCl is added to a solution?</h3>
  • The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart.
  • The sodium and chloride atoms are encircled by water molecules after the salt compounds are separated. After that, the salt dissolves and forms a homogenous solution.
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Learn more about sodium chloride added to a solution refer to :

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7 0
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Is it the power of material evidence that wins, not the authority of experts that
kvasek [131]

Yes, it is the power of material evidence that wins.

  • Evidence used to support or refute a scientific theory or hypothesis is known as material evidence.
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Therefore, it is the power of material evidence that wins, not the authority of experts that

proves an answer in Science.

Learn more about hypothesis here: brainly.com/question/606806

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7 0
2 years ago
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