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serg [7]
3 years ago
6

If a sample of copper is 3.3g, how many moles of copper atoms is there in the sample?

Chemistry
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

3.1 *10^22 atoms Cu

Explanation:

M(Cu) = 63.5 g/mol

3.3 g Cu * 1mol Cu/63.5 g Cu = 0.0520 mol Cu

0.0520 mol Cu * 6.02*10^23 atoms Cu/1 mol Cu = 3.1 *10^22 atoms Cu

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sergey [27]

Answer:

protons : 10

electron : 10

neutron : 10

Explanation:

Protons will usually be the same as the electrons when its a <u>Atom</u> (when its a ion or covalent bond or simple bond they will most likely be different)

the atomic number represents protons and electrons

the mass number - the atomic number = neutron

8 0
3 years ago
Which electron in sulfur is most shielded from nuclear charge?
natima [27]

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Explanation:

Electrons present in the 3p orbitals are farthest from the nucleus. Therefore, the electrons present in the 3p orbital will be shielded by the electrons present in the inner orbitals. Hence, 3p orbital in sulfur is most shielded from the nuclear charge".

5 0
2 years ago
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Alisiya [41]
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8 0
3 years ago
Explain why an atom may go through nuclear decay but another won't? use examples to support your answer.
Marta_Voda [28]
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3 0
4 years ago
What is the speed of each vehicle? (Remember S=d/t)
Aleksandr [31]

Answer:

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5 0
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