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Andru [333]
2 years ago
15

Which statement is true about energy transfer?

Chemistry
1 answer:
Pavel [41]2 years ago
6 0

Answer:

B

explanation: I think

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Which of the following has the greatest electronegativity difference between the bonded atoms? View Available Hint(s) Which of t
Reptile [31]

Answer: A group 1 alkali metal bonded to fluoride, such as LiF.

Explanation:

Electronegativity is defined as the property of an element to attract a shared pair of electron towards itself. The size of an atom increases as we move down the group because a new shell is added and electron gets added up.

1. A strong acid made of hydrogen and a halogen, such as HCl : A polar covalent bond is defined as the bond which is formed when there is a difference of electronegativities between the atoms. Electronegativity difference = electronegativity of chlorine - electronegativity of hydrogen = 3-2.1= 0.9

2. A group 1 alkali metal bonded to fluoride, such as LiF: Ionic bond is formed when there is complete transfer of electron from a highly electropositive metal to a highly electronegative non metal.

Electronegativity difference = electronegativity of fluorine - electronegativity of lithium= 4-1= 3

3. Carbon bonded to a group 6A (16) nonmetal chalcogen, such as in CO: A polar covalent bond is defined as the bond which is formed when there is a difference of electronegativities between the atoms.

Electronegativity difference = electronegativity of oxygen - electronegativity of carbon= 3.5-2.5= 1.0

4. A diatomic gas, such as nitrogen (N_2): Non-polar covalent bond is defined as the bond which is formed when there is no difference of electronegativities between the atoms.

Electronegativity difference = 0

Thus the greatest electronegativity difference between the bonded atoms is in LiF.

7 0
3 years ago
What parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? The number of neutrons
Tcecarenko [31]

Answer:

The number of protons and neutrons.

Explanation:

Neutrons and Protons can't be removed from nucleus from chemical reactions because they are held together super strong and tight. However, nuclear reactions are strong enough to separate them.

hope this helps :)

8 0
3 years ago
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14. What is the oxidation number of oxygen in HSO4 -
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Answer:

2

Explanation:

i did this

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"Infant Joy" is a conversation between __.
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The answer to  this is C.
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