Which
2 continents have the most obvious fit of the coastlines.
subject science

Answers

Answer 1
Answer: The East coastline of South America and the west coastline of Africa share the most obvious fit, it gave Wegener the first idea as evidence for the continental drift.
Answer 2
Answer:

Two continents have the most obvious fit of the coastlines are the east coast of South America and the west coast of Africa.

Further explanation

According to the examination of a world map it reveals a striking match between the shapes of the east coast of South America and the west coast of Africa. Attached the map which shows the west coast of Africa in 1842 and also the map of the east coast of South America. According to the picture of the west coast of Africa in 1842,  we can see Sierra Leone and Freetown, where the West India Regiments arrived and departed from.

Two continents have the most obvious fit of the coastlines are the east coast of South America and the west coast of Africa, because the east coast of South America and the west coast of Africa seem to fit together like pieces of a jigsaw puzzle.

Wegener discovered that their rock layers are fit just as it clearly.  All the landmasses used to be one great landmass called Pangaea. Due to plate tectonics, fire movements in the mantle of the earth, the continents are slowly through millions of years, spread farther apart.

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  1. Learn more about Matching Coastlines brainly.com/question/6285861

Answer details

Grade:  9

Subject:  chemistry

Chapter:  coastlines

Keywords: coastlines


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Answers

Option b: molality

That is the definition of molality.

Which balanced equation represents a redoxreaction?
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Answers

Option no. 2  Balanced equation     

2KClO3(s)⇒2KCl(s) + 3O2(g)
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What must be true for a substance to be able to dissolve in water?The solute particles must have a strong attraction for the water particles.
The solute must be able to react with water at the given temperature.
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Answers

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There are 12 inches (in). in 1 foot (ft). which expression can be used to find the number of inches in 2.5 feet?

Answers

Given:
12 inches in 1 foot
number of inches in 2.5 feet

2.5 feet * 12 inches/1foot = 2.5 * 12 inches = 30 inches

1 foot + 1 foot + 0.5 foot = 2.5 feet
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12 inches : 1 foot = x : 2.5 feet
12 inches * 2.5 feet = x*1foot
30 inches * feet = x * foot
30 inches = x

Answer:

A:2.5ft*(12in)/(1ft)

Explanation:

In Edge2020

How is an average mass different from a weighted average mass?

Answers

The weighted average mass of the atoms in a naturally occurring sample of an element is the average atomic mass, also known as atomic weight.

What is atomic mass?

The average mass of an element's atoms expressed in atomic mass units is known as its atomic mass (amu, also known as daltons, D).

The mass of each isotope is multiplied by its abundance to produce the atomic mass, which is a weighted average of all the isotopes of that element.

Any element has a variety of isotopes, thus to take into consideration the fact that each isotope has a different mass, a weighted average mass is used.

A weighted average takes into account the potential that an element's average mass, as calculated from a random sample, will most likely coincide with the average mass of its more common isotopes.

The weighted average masswill therefore be closest to that of the more prevalent isotopes.

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With any element, there are a range of isotopes . . . a weighted average mass is used because there exist different isotopes of that element, each of varying mass.  A weighted average accounts for the fact that the average mass (that may likely be measured from a random sample of the element) will most likely reflect the average mass of the more abundant isotopes.  So the weighted average mass will be most comparable to the more abundant isotopes.

Identify what a bomb calorimeter measures. Identify what a bomb calorimeter measures. measures ΔE for aqueous reactions measures ΔH for oxidation solutions measures ΔH for hydrolysis solutions measures ΔT for hydrolysis solutions measures ΔE for combustion reactions

Answers

Answer: Option (e) is the correct answer.

Explanation:

A device which consists of a sealed metal container and it is immersed in an insulated sealed container which is filled with water used to calculate heat of combustion of a reaction.

Volume remains constant in a bomb calorimeter. Basically, a bomb calorimeter measures the changes occurring in the internal energy because of a chemical reaction.

Thus, we can conclude that a bomb calorimeter measures \Delta E for combustion reactions.

A bomb calorimeter measures  ΔE for combustion reactions. Thus, option E is correct.

A device which consists of a sealed metal container and it is immersed in an insulated sealed container which is filled with water used to calculate heat of combustion of a reaction.

Volume remains constant in a bomb calorimeter. Basically, a bomb calorimeter measures the changes occurring in the internal energy because of a chemical reaction.

Thus, we can conclude that a bomb calorimeter measures  for combustion reactions.

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The options are

measures ΔE for aqueous reactions

measures ΔH for oxidation solutions

measures ΔH for hydrolysis solutions

measures ΔT for hydrolysis solutions

measures ΔE for combustion reactions