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Over [174]
3 years ago
14

Which of the following describes a covalent bond?

Chemistry
2 answers:
Marizza181 [45]3 years ago
7 0

Answer:

D. It is the sharing of electrons between atoms with an electronegativity difference below 1.7

Covalent bonds share electrons, whereas ionic bonds exchange electrons. Covalent bonds have an electronegativity of 0.0-1.7 (0.0-0.3 is a nonpolar covalent bond and 0.3-1.7 is a polar covalent bond). Ionic bonds are bonds that go beyond the electronegativity of 1.7 to 4.0 (1.7-4.0).

Sonbull [250]3 years ago
5 0

Answer:

D= It is the sharing of electrons between atoms with an electronegativity difference below 1.7

Explanation:

Covalent bond is the sharing of electrons between atoms, the electron pair is also known a shared pair. Covalent bond is also known as chemical bond or a molecular bond.

Electronegativity of covalent bonds is below than 1.7, because if the electronegativity is more than 1.7 the bond will be ionic and an ionic bond donates electron to the other which is participating in bond formation. The electronegativity between 0.4 to 1.7, the bond will be polar covalent and the electronegativity is less than 0.4, the bond will be non polar covalent bond.

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Define the term relative atomic mass, A.
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How many molecules are in 2.50 moles of carbon dioxide?
podryga [215]

Answer:

1.5055×10²⁴ molecules

Explanation:

From the question given above, the following data were obtained:

Number of mole CO₂ = 2.5 moles

Number of molecules CO₂ =?

The number of molecules present in 2.5 moles CO₂ can be obtained as:

From Avogadro's hypothesis,

1 mole of CO₂ = 6.022×10²³ molecules

Therefore,

2.5 mole of CO₂ = 2.5 × 6.022×10²³

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Thus, 1.5055×10²⁴ molecules are present in 2.5 moles CO₂

7 0
2 years ago
How many sublevels inn the second energy level?
GREYUIT [131]

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The energy level can be defined as the fixed distances from the nucleus of an atom where electrons may be found. Each energy level is divided into some Subshells. These subshells are known as s-subshell, p-subshell, d-subshell, and f-subshell. This subshell contains some orbitals, these orbitals are the place where there is the maximum probability of getting the electrons. In one orbital, a maximum of two electrons can be present.

Hence, there are two subshells in the second energy level.

Learn more about subshells here:

brainly.com/question/26438203

#SPJ10

4 0
1 year ago
PLEASE HELP!! <br> this is on USAtestprep <br> a)<br> b)<br> c)<br> d)
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