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Pavel [41]
3 years ago
9

Electrons are negatively charged and do not contribute to the overall charge of the atom. True False

Chemistry
2 answers:
Leto [7]3 years ago
7 0
False I think maybe shiii idk
kaheart [24]3 years ago
3 0

The given statement is false.

Electrons are negatively charged and do contribute to the overall charge of the atom.

An atom is neutral in charge because in an atom the number of electrons is equal to the  number of protons. So the overall negative charge of the electrons is balanced by the positive charge of the protons.

However, if  the number of electrons ( negatively charged) is greater than or less than the  number of protons (positively charged ), then the atom will no longer remain neutral and it will become either a negatively charged ion (anion) or a positively charged ion (cation) respectively.

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Ede4ka [16]

Answer:

Cobaltous Nitride,I think so anyway.......

6 0
3 years ago
How many moles of O2 are needed to react with 2.35 mol of C2H2?
Mrrafil [7]
2 C2H2 + 5 O2 --> 4 CO2 + 2 H2O

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2 mol C2H2 - 5 mol O2

x =  \frac{2.35 \times 5}{2}  = 5.875 \: mol
answer: 5.875 mol
5 0
3 years ago
Read 2 more answers
What does this do to the electrons outside the nucleus in the gaseous atoms
AleksandrR [38]

Answer:

Explanation:

As you know, ionization energy is the energy needed to remove one mole of electrons from one mole of atoms in the gaseous state

X

+

energy

→

X

+

+

e

−

Right from the start, you can tell that the harder it is to remove an electron from an atom, the higher the ionization energy will be.

Now, the periodic trends for ionization energy can be describe as follows

ionization energy increases as you move from left to right across a period

ionization energy decreases as you go down a group

As you mentioned, if you compare the first ionization energies for oxygen and chlorine using these two trends, you will get conflicting results.

If you follow the way ionization energy increases across period, chlorine would have a higher ionization energy, since it's closer to the noble gases.

On the other hand, if you go by how ionziation energy decreases from top to bottom in a group, oxygen would have higher ionization energy, since it's located in period 2, as compared with period 3 for chlorine.

As it turns out, the trend for groups overpowers the trend for periods. As aresult, oxygen will have a higher ionization energy than chlorine.

This happens because the smaller oxygen atom has its outermost electrons held tighter by the nucleus. By comparison, chlorine's outermost atoms are located further away from the nucleus.

Not only that, but they are screened from the charge of the nucleus better, since they're located on the third energy level.

Oxygen's outermost electrons are screened by

2

electrons, while chlorine's are screened by

8

electrons.

All these factors will make chlorine's outermost electrons a little easier to remove, which implies a smaller ionization energy than that of oxygen.v

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3 years ago
The molecular formula for butane is C4H10. Determine the percent composition for
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%Mass

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or

\tt H=\dfrac{10.1}{58}\times 100\%= 17.2\%

4 0
2 years ago
How many neutrons are in selenium -36?
Soloha48 [4]

Selenium (Se)  the most common isotope of this element. The nucleus consists of 34 protons (red) and 46 neutrons (blue).

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