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Elena-2011 [213]
3 years ago
7

Can someone answer dis:

Chemistry
2 answers:
Aliun [14]3 years ago
8 0
If we subtract the atomic number from the atomic mass: atomic mass - atomic number = number of protons + number of neutrons - number of protons. Thus we get the number of neutrons present in an atom when we subtract the atomic number from the atomic mass. Hope this helps.
SVEN [57.7K]3 years ago
7 0

Answer:

If we subtract the atomic number from the atomic mass: atomic mass - atomic number = number of protons + number of neutrons - number of protons. Thus we get the number of neutrons present in an atom when we subtract the atomic number from the atomic mass.

Explanation: hope this helps???

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How are intermolecular forces of attraction, vapor pressure, and boiling point related?
monitta

Answer:

Intermolecular forces (IMFs) can be used to predict relative boiling points. The stronger the IMFs, the lower the vapor pressure of the substance and the higher the boiling point. Therefore, we can compare the relative strengths of the IMFs of the compounds to predict their relative boiling points.

Explanation:

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3 years ago
What is the molar mass of Fe(NO3)2?
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If 6.02×1023 atoms of element Y have a mass of 28.09 g, what is the identity of Y?
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Silicon is the element having a mass of 28.09 g

<u>Explanation</u>:

  • Silicon is the element having an atomic mass of 28.09 g / mol. So 28.09 g of silicon contains 6.023 \times 10^23 atoms. One mole of each element can produce one mole of compound.
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  • Avagadro number is the number of atoms of 1 mole of any gas at standard temperature and pressure. It has been determined that 6.023 \times 10^23 atoms of an element are equal to the average atomic mass of that element.
8 0
3 years ago
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8 0
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so how many moles of Fe are in 3.10 mole of iron oxide FeO still waiting for answer please, my grandchild needs help that I can'
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The answer is 3.10 because it's still the same amount moles of iron.
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3 years ago
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