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Alisiya [41]
3 years ago
15

Find [OH-], pH and pOH of a solution where [H+]=7.2x10-2M

Chemistry
1 answer:
Mamont248 [21]3 years ago
4 0
pH: 1.14266750357
pOH: 12.8573324964
[H+]: 0.072
[OH-]: 1.38888888889E-13 acid
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Covalent bonding occurs between two oxygen atoms to form O2. What's the partial charge on each oxygen atom in 02?
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Answer:

Both oxygen atoms have zero partial charge.

Explanation:

In covalent bonds, electrons are shared between the two bonding atoms. The shared electron pair of the covalent bond is positioned between the nuclei of the two bonding atoms.

A covalent bond may be formed between two or more elements of different electronegativities. When a difference in electro negativity exists between these atoms in a covalent bond, the molecule becomes polarized. The shared electron pair of the covalent bond becomes closer to the nucleus of the more electronegative atom (s). This more electronegative atom (s) becomes partially negative while the other atom becomes partially positive.

When the two bonding atoms are of equal electronegativities such that the electro negativity difference between the bonding atoms is zero, there is now no difference in electro negativity and no consequent partial charges.

Since the two oxygen atoms have the same electro negativity, there is no difference in electronegativity, hence there is no partial charge between the two oxygen atoms.

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3 years ago
What happens when an electron in its lowest energy level or ground state when it is by absorbs energy?
tester [92]

Explanation:

atom changes from a ground state to an excited state by taking on energy from its surroundings in a process called absorption. The electron absorbs the energy and jumps to a higher energy level. In the reverse process, emission, the electron returns to the ground state by releasing the extra energy it absorbed

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3 years ago
The properties of a compound are ____ the properties of the element that form it
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The properties of a compound are different than the properties of the element that forms it
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aleksandrvk [35]

Answer:

2Na + 2H2O → 2NaOH + H2

Explanation:

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