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klio [65]
3 years ago
14

Explain why it is more difficult to measure the temperature of a solid than of a liquid

Chemistry
2 answers:
andreyandreev [35.5K]3 years ago
8 0
Because you can actually put something inside the liquid to measure the temperature,but with the solid you can't
Gnoma [55]3 years ago
5 0
It is more difficult to measure the temp of a solid than a liquid because it takes longer to go through a solid than a liquid..
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Elements occur in a number of isotopic forms. In this problem, you will learn about the notation used to distinguish different i
alina1380 [7]

Answer:

  • <em>Number of protons, Z = 14</em>
  • <em>Number of neutrons, N = 14</em>

Explanation:

<u>1) About isotopes:</u>

<em>Isotopes</em> are different kind of atoms of the same element. Hence, they have the atomic number (Z), which is the number of <em>protons</em>, the same number of electrons (talking about to neutral atoms, not ions), and different <em>number of neutrons N).</em>

This is, it is the number of neutrons what distinguish different isotopes of an element.

<u>2) About the notation used to distinguish different isotopes:</u>

A superscript and a subscript, both to the left of the chemical symbol of the element, are used to <em>distinguish different isotopes</em>:

       A ←------------- This superscript tells the mass number of the isotope

           X ←--------- This is the chemical symbol of the element

      Z ←-------------- This subscript is the atomic number of isotope

In our case, the notiation for the isotope of silicon is:  ²⁸₁₄ Si

So, we have:

  • 28 is the mass number (A)
  • 14 is the atomic number (Z)
  • Si is the chemical symbol.

Now, you can answer the questions of the <em>part A</em>:

  • Number of protons: Z = 14
  • Number of neutrons N:

       mass number = number of protons + number of neutrons

                   A         =                 Z              +                N

⇒ N = A - Z = 28 - 14 = 14

In <u>conclusion</u>:

  • Number of protons, Z = 14
  • Number of neutrons, N = 14
5 0
3 years ago
PLEASE HELP ASAP MOLES TO MOLECULES
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Answer:

4.77mol is the correct answer

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Answer:

0.34

Explanation:

Cu>>>Cu2+(oxidation number increases)[Oxidation occurs]

Ag+>>>Ag(Oxidation number decreases) [Reduction occurs]

E°=0.80-0.46

=0.34V

8 0
1 year ago
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What is the name for NICO3•4H2O
Harman [31]
Thc
hope it helps
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8 0
3 years ago
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What is the empirical formula for a compound that contains 17.34% hydrogen and 82.66% carbon?
Anton [14]

Answer:

C2H5

Explanation:

you first find the number of moles of both substances then divide by the lowest number in this case carbon was 1 and hydrogen was 2,515... then you multiply by a whole number which was 2 then it was now C2H5

7 0
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