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Studentka2010 [4]
3 years ago
14

A polar covalent bond is likely to form between two atoms that

Chemistry
1 answer:
Maurinko [17]3 years ago
7 0

Answer:

c. differ in electronegativity

Explanation:

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 . The bond is polar.

When the elctronegativity difference is 0.4 or less than 0.4 the bond is non polar.

if the electronegativity difference is greater than 0.4 the bond is polar.

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Need help with science pls help me
hoa [83]

Answer:

B. negative charge only

Explanation:

The saying "opposites attract" is true in the case. Since the rod is positively charged, the sphere must have a negative charge to be attracted to it.

A sphere that is positively charged would be repelled from the rod, and a neutral sphere would not be attracted or repelled.

3 0
3 years ago
State the oxidation number assigned to each bold element in the formula: NH4+1 a 3 b -3 c -1 d 6
Leya [2.2K]
The fomula is NH4 (1+)


There are only two elements N and H.


As per oxidation state rules, the most electronegative element will have a negative oxidation state and the other element will have a positive oxidation state.


N is more electronative than H, so H will have a positive oxidation state and nitrogen will have a negative oxidation state.


You can also use the rule that states the hydrogen mostly has 1+ oxidation state,except when it is bonded to metals.


In conclusion the oxidation state of H in NH4 (1+) is 1+.


Now you must know that the sum of the oxidations states equals the charge of the ion, which in this case is 1+.


That implies that 4* (1+)  + x =   1+


=> x = (1+) - 4(+) = 3-


Answer:  the oxidation state of N is 3-, that is the option b.
8 0
4 years ago
Choose the most alkaline substance in the group.
slava [35]

Answer:

milk of magnesia, pH = 10.5

Explanation:

6 0
3 years ago
Read 2 more answers
How many atoms are in the peroxide H2O2 molecule? Explain.
Mrrafil [7]
There are two hydrogen and two oxygen molecules because the number next to the atomic number is how many there are.
5 0
3 years ago
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PLEASE HELP I WILL GIVE YOU BRAINLIEST PLEASE
g100num [7]

Answer:

the answer is the second choice actual force

6 0
3 years ago
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