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jok3333 [9.3K]
3 years ago
5

When you take off a wool hat, some of the electrons from your hair transfer to

Chemistry
1 answer:
laiz [17]3 years ago
3 0

Answer:

C. The electrostatic force is stronger than the gravitational force

between Earth and your hair

Explanation:

Electrostatic forces are extremely strong. When your hair becomes charged from the electrons, it causes the strands of your hair to repel (push away) from each other because they have like (the same) charges.

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For a reaction that follows the general rate law, Rate = k[A][B]2, what will happen to the rate of reaction if the concentration
sleet_krkn [62]

Answer:

The rate will increase by a factor of 5.00 too.

Explanation:

Hello,

In this case, given the rate law:

r=k[A][B]^2

Thus, we can notice it is first-order respect to A, for that reason, increasing its concentration by a factor of 5.00, increase the rate by a factor of 5.00 as well.

Moreover, if the concentration of B is increased by the same factor, the rate will increase by a factor of 25.00, since the rate is second-order respect to B (it is squared).

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5 0
3 years ago
What is "the cloud"?
Misha Larkins [42]

A

Explanation:

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7 0
3 years ago
The molar mass of two equally sized samples of unknown gaseous compounds is shown in the table. Molar Mass Comparison Gas Molar
maxonik [38]

Answer:

Effusion  is the process of a gas being poured out through a hole diametrically smaller than the structural exit of the container.

A lighter gas effuses faster than a heavier gas.

Thus gas A has a lower density and effuses slower than Gas B.

Explanation:

4 0
3 years ago
What has neutral change
fenix001 [56]

Answer:

Neutral mutations are changes in DNA sequence that are neither beneficial nor detrimental to the ability of an organism to survive and reproduce. In population genetics, mutations in which natural selection does not affect the spread of the mutation in a species are termed neutral mutations.

Explanation:

5 0
4 years ago
The pH of a 0.23M solution of acrylic acid HC3H3CO2 is measured to be 2.44. Calculate the acid dissociation constant Ka of acryl
belka [17]

Answer:

Kₐ =  5.7 x 10⁻⁵

Explanation:

The equilbrium for this acid is

HC₃H₃CO₂ + H2O    ⇄ H₃O⁺  +   C₃H₃CO₂ ⁻  ,

and the equilibrium constant for acrylic acid is given by the expression:

Kₐ = [ H₃O⁺][ C₃H₃CO₂⁻ ] / [ HC₃H₃CO₂ ]

Since  the pH of the 0.23 M solution is known , we can calculate [ H₃O⁺].

The ][ C₃H₃CO₂⁻ ]  is equal to  [ H₃O⁺] from the above equilibria (1:1)

Finally [ HC₃H₃CO₂ ] is known.

pH = - log  [ H₃O⁺]

taking antilog to both sides of the equation

10^-pH =  [ H₃O⁺]

Substituting

10^-2.44 =  [ H₃O⁺]  = 3.6 x 10⁻³

[ C₃H₃CO₂⁻ ] = 3.6 x 10⁻³

Kₐ = ( 3.6 x 10⁻³ ) /0 .23 = 5.7 x 10⁻⁵

7 0
3 years ago
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