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GaryK [48]
4 years ago
7

Pam observed many small earthworms in the backyard of her house after a heavy rain. What most likely formed the earthworms?

Chemistry
1 answer:
AlekseyPX4 years ago
4 0

Answer: Option (b) is the correct answer.

Explanation:

When it rains, then mud in the backyards become wet. It is known that earthworms live inside earth and diffusion of oxygen gets slower through water than through air.

As a result, supply of oxygen to the worms decreases in wet mud hence, they come to the surface in order to breathe.

Thus, we can conclude that wet mud in the backyard most likely formed the earthworms.




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1) Choose the correct statement from the options below.
Svetach [21]

<u>Answer:</u>

For 1: The correct answer is option D.

For 2: The correct answer is option A.

<u>Explanation:</u>

There are two types of molecules which can be categorized on the basis of electronegativity difference:

  • <u>For 1:</u>

Polar molecules: In these type of molecules, the two atoms combining must be different so that a dipole can be created and for that the electronegativity of two atoms combining must not be same. The negative dipole of charge is created on the electronegative atom and positive dipole or charge is created on the electropositive atom.

Hence, the correct answer is option D.

  • <u>For 2:</u>

Non-polar molecules are defined as the molecules which do not have any dipole and is formed when two atoms of same element combine together which have the same electronegativity. The electronegativity difference of these molecules is 0.

Hence, the correct answer is A.

7 0
3 years ago
Which are exmaples of chemical change?
aniked [119]

Answer:

C: salt is dissolved into freshwater

D: salt is dissolved into freshwater

F: frying changes the color and texture of an egg

G: ocean water evaporates to water vapor on a hot day

5 0
3 years ago
g .For each of the following disubstituted cyclohexanes, indicate whether the substituents in the two chair conformations would
Kryger [21]

Answer:

a) Both chairs conformers have one of its substituents in an axial position and the other in an equatorial position

b) One chair conformer has both its substituents in an axial position while the other chair has its substituents in an equatorial position

c) One chair conformer has both its substituents in an axial position while the other chair has its substituents in an equatorial position

d) Both chairs have one of its substituents in an axial position and the other in an equatorial position

e) Both chairs have one of its substituents in an axial position and the other in an equatorial position

(f) One chair conformer has both its substituents in an axial position while the other chair has its substituents in an equatorial position

Explanation:

Determine what the substituents would be

a) Cis-1,2-  : Both chairs conformers have one of its substituents in an axial position and the other in an equatorial position

b) Trans-1,2- : One chair conformer has both its substituents in an axial position while the other chair has its substituents in an equatorial position

c) Cis-1,3- : One chair conformer has both its substituents in an axial position while the other chair has its substituents in an equatorial position

d) Trans-1,3- : Both chairs have one of its substituents in an axial position and the other in an equatorial position

e) Cis-1,4- : Both chairs have one of its substituents in an axial position and the other in an equatorial position

(f) Trans-1,4- : One chair conformer has both its substituents in an axial position while the other chair has its substituents in an equatorial position

7 0
3 years ago
The pressure of a gas is _____ affected by the temperature and number of gas particles in a system, and it is _____ affected by
AlekseyPX
The pressure of a gas is directly affected by the temperature and number of gas particles in a system, and inversely affected by the volume of gas in the system.
3 0
4 years ago
Read 2 more answers
Phương trình hóa học là gì
Doss [256]

Explanation:

sự xuất bản hóa học nào? có một câu hỏi về khoa học mà bạn cần giúp đỡ? tôi luôn ở đây để giúp đỡ!

7 0
3 years ago
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