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Nataly_w [17]
4 years ago
5

A non-bonding pair of electrons in the valence shell (last shell for that element) of an atom is called _______________. A. a lo

ne pair B. an unshared pair C. both a and b D. none of these
Chemistry
2 answers:
Vera_Pavlovna [14]4 years ago
8 0

Answer:

A. Lone pair

Explanation:

Grace [21]4 years ago
6 0

Answer: c

Explanation:

If their is a question with the anwser “both ___” it’s that

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Most substances can exist as a solid, liquid, or gas depending on ? ( science
earnstyle [38]

Answer:

The amount of energy in molecules of matter determines the state of matter.

Explanation:

The amount of energy in molecules of matter determines the state of matter. Matter can exist in one of several different states, including gas, liquid, or solid-state.

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3 years ago
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Which item does not depend on rare earth elements?
Alisiya [41]

Answer:

Perrous magnets

Explanation:

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3 years ago
How is electronegativity used in determining the ionic or covalent character of the bonding between two elements?
madam [21]

Answer:

If the electronegativity difference between bonded atoms are too much high ionic bonds are formed if the electronegativity diference is 0.4 or less than 0.4 non polar covalnet bond formed the difference greater than 0.4 polar covalent bond formed.

Explanation:

Ionic bond:

It is the bond which is formed by the transfer of electron from one atom to the atom of another element.  

Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.

For example:

Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion.

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.

For example:

In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive.

8 0
3 years ago
Given the equation I = Q/t, solve for t.
larisa86 [58]

Answer: t=\frac{Q}{I}

Explanation:

I=\frac{Q}{t}

Multiply by t on both sides.

t*I=\frac{Q}{t}*t

tI=Q

Now divide by I to isolate t.

\frac{tI}{I}=\frac{Q}{I}

t=\frac{Q}{I}

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3 years ago
A scoop of potassium oxide was placed in
kotykmax [81]

Answer:

I just need points sorry

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3 years ago
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