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2 years ago

Which statement is true about the electrons in each polar bond of a water molecule?

Chemistry

2 answers:

Greeley [361]2 years ago

5 0

They are more attracted by the oxygen atom than by the hydrogen atom.

Explanation:

In the polar bond of water which is made up of hydrogen and oxygen atoms, the shared electrons are more attracted by the oxygen atom than by the hydrogen atom.

The interatomic bond in water is a polar covalent bond.

In this bond type, two species shares their valence electrons.

The bond usually occurs between non-metals with an electronegativity difference that is small.

Oxygen is more electronegative compared to hydrogen.

This implies that oxygen pulls the electron more closely to itself since it has a greater affinity.
This leaves a partial negative charge on oxygen and a positive charge on hydrogen.
The molecule is said to be polar covalent.

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Tresset [83]2 years ago

4 0

Answer:

They are more attracted by the oxygen atom than by the hydrogen atom.

Explanation:

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The km of an enzyme is 5. 0 mm. Calculate the substrate concentration when this enzyme operates at one‑quarter of its maximum ra

Makovka662 [10]

The substrate concentration of the enzyme operating at one‑quarter of its maximum rate is = 0.333.

Relationship between Km and substrate concentration is -

Km is the concentration of substrate.It allows the enzyme to achieve half Vmax. High Km enzyme requires a higher concentration of substrate to get Vmax. Since, Km is a constant. If the substrate concentration is increased, it has no effect on it.

An enzyme with a high Km has a low affinity for its substrate. The substrate concentration Km corresponds to the substrate concentration.

The substrate concentration at which the reaction rate of the enzyme-catalyzed reaction is half of the maximum reaction rate Vmax.

The equation is:

V₀ = Vmax [S]

[S] + Km

Here,

V₀ is initial rate,

Km is the dissociation constant between the substrate and the enzyme,

Vmax is the maximum rate, and

S is the concentration of substrate.

taking fraction of V₀ and Vmax :

V₀ = [S]

Vmax [S] + Km

V₀ = 0.5Km = 0.333

Vmax 1.50 + Km

Therefore, the substrate concentration of this enzyme operating at one‑quarter of its maximum rate is = 0.333.

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3 months ago

What is the process where a liquid changes from its liquid state to a gaseous state?

Mars2501 [29]

When a liquid goes from a liquid state to a gaseous state it is called evaporation

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Answer:

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Explanation:

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He used the prefix ''eka'' to refer to elements whose properties were alike but were yet to be discovered at that time.

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Explanation:

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