Why do historians analyze historical events and cause and effect relationship

Answers

Answer 1
Recognizing patterns of cause and effect is an important analytical skill that allows historians to explain why things happened the way they did in the past. It's also a strategy that can make it possible to predict what may happen in the future.

Related Questions

What type of energy is stored in fuels such as gasoline and batteries

Answers

Answer:Chemical energy

Explanation:Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine.

The type of energy which  is stored in fuels such as gasoline and batteries is chemical energy.

What is chemical energy?

Energy which is stored in the chemical bonds of chemical compounds is called chemical energy.Chemical energy is released during the occurrence of chemical reaction.Reactions wherein energy is given out in the form of heat is called exothermic reactions.

Chemical energy can be converted to other forms of energy like electrical energy during the process of electrolysis and to thermal energy as in the case of thermal engines.

It can also be converted to kinetic energy during explosions . It is stored in batteries, coal, biomass, food, vehicle air bags,etc.

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In a synthesis reaction, the elements Fe and S might react to form which of the following?

A. H20

B. FeS

C. Na and Cl

D. All of the above

Answers

Answer:

THE ANSWER IS A

Explanation:

In a synthesis reaction, the elements Fe and S might react to form FeS.

Given :

The elements Fe and S might react to form a product,

To find:

The product of the synthesis reaction.

Solution:

The synthesis reaction is a type of chemical reaction in which two more different substances are combined together to give a single product,

When iron (Fe) and sulfur react the product will be formed will have both iron atoms and sulfur atoms.

[tex]Fe+S \rightarrow FeS[/tex]

In a synthesis reaction, the elements Fe and S might react to form FeS.

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What is the most strongest material bedrock Obsidian or diamond​

Answers

The answer is Obsidian.

Descibe how electronegativity and molecular shape determine the polarity of a molecule. Then describe why chemists consider relative electronegativity values and not absolute electronegativity values when determining the polarity of a bond. Also explain how a molecule with polar bonds can be non-polar overall.​

Answers

Answer:

See explanation

Explanation:

Electronegativity is an idea put forward by Linus Pauling to explain the fact that in a molecule, one atom may attract the shared electrons of the bond closer to itself than the other.

Hence electronegativity is defined as the power of an atom in a molecule to attract electrons to itself.

Pauling originally described electronegativity as a relative quantity. It depends on the electronegativities of the atoms in the molecule. However, some methods have sought to measure the absolute electronegativity of a free atom.

A bond is polar when the atoms that make up the bond have a significant difference between the atoms of the molecule.

However, a molecule may possess polar bonds but may not have an overall dipole moment owing to the shape of the molecule.

For instance, CCl4 has four polar C-Cl bonds but the overall molecule is non polar because due to the fact that the molecule is tetrahedral in shape and highly symmetrical hence the individual dipoles cancel out.

what I do when I need to eat

Answers

You eat food when you need to eat!!!

What do you suppose is the reason and what do you need to do.

Answers

Answer:

You have to add many things

Explanation:

for example u can add why and how also what ur point is

How are the molecules in a substance behaving if a great deal of thermal energy has transferred away from it through conduction?

Answers

Answer:

the molecules would be slowing down

Explanation:

Answer:

they'd slow down durr

Explanation:

Which of the following has thermal energy?

A. Both a piece of metal that feels hot and a piece of metal that feels cold.
B. A piece of metal that feels hot but not a piece of metal that feels cold
C. A piece of metal that feels cold but not a piece of metal that feels hot
D. Neither a piece of metal that feels hot nor a piece of metal that feels cold

Answers

It’s c because I took the test

Antonio and his friend found a piece of metal which they want to identify. Here is what they figure out so far: Mass of this metal is 20g Volume of this metal is 2.35cm3

Answers

Answer:

The density of beryllium copper is 8.5 g/cm³ thus given metal is beryllium copper.

Explanation:

Given data:

Mass of metal = 20 g

Volume of metal = 2.35 cm³

Which metal is this = ?

Solution:

we will apply density formula to solve this problem.

d = m/v

d = density

m = mass

v = volume

d = 20 g/ 2.35 cm³

d = 8.5 g/cm³

The density of beryllium copper is 8.5 g/cm³ thus given metal is beryllium copper.

The element Aluminium (AI) Is

Answers

Answer:

a metal which is found in 13 group and 3 period of periodic table

how many grams of S are in 665 g of SO2

Answers

Answer: 111g S

Explanation:

SO2 you have = 665 g

SO2 molar mass = 64.066 g/mol

S molar mass = 32.065 g/mol

[tex]665g SO2*\frac{1 molSO2}{64.066gSO2} *\frac{1molS}{3molSO2} * \frac{32.065gS}{1molS} = 110.944... ~ 111gS[/tex]

There are 332.5 grams of S (sulfur) in 665 g of SO2 ( sulfur dioxide).

From the information given:

The atomic mass of sulfur = 32 g/mol

The atomic mass of oxygen = 16 g/mol

The molar mass for SO2 = 32 + (16 × 2) g/molThe molar mass for SO2 = 64 g/mol

Since there are 665g of SO2;

If 1 mole of SO2 contains 1 mole of S

It implies that:

(1 × 64)g of SO2 will contain (1 × 32) g of S;

665 g of SO2 will contain :

[tex]\mathbf{= \Big ( \dfrac{1 \times 32}{1 \times 64} \times 665 \Big )}[/tex]

= [tex]\mathbf{\Big 332.5 \ grams \ of \ S \Big}[/tex]

Therefore, we can conclude that there are 332.5 grams of S present in 665 g of SO2.

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whai is the maining of science?

Answers

Answer:

the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

Explanation:

What color of light has the wavelength 5.6 x 10 -7 meters

Answers

Answer:

49

Explanation:

i multiply 5.6 times 10 and mines 7

write a short note on the function of the Amino acid in human body.​

Answers

Answer:

Hello

Amino acids function as the building blocks of proteins. Proteins catalyze the vast majority of chemical reactions that occur in the cell. They provide many of the structural elements of a cell, and they help to bind cells together into tissues.

Hope it helps you...

Which of the following is an example of an endothermic reaction?
!!! thank u!!

Answers

Answer:

Combustion

Explanation:

Which atom has only one pair of electrons in its outermost energy level?
a. Boron b. carbon c. nitrogen d. oxygen

Answers

Answer:

i belive A, i cold be wrong tho, pls tell me if im right if you fully find out

ght. Explanation:

If it takes a Sonar echo 8 seconds to reach the bottom of the ocean and return and we know that the speed of sound is 1500 meters per second, how far away is the bottom of the ocean?:


A) 4000 meters

B) 8000 meters

C) 6000 meters

D) 1200 meters

Answers

Answer:

C) 6000 meters.

Explanation:

Hello.

In this case, since the speed is computed as the distance divided by the time to attain such displacement:

[tex]s=\frac{d}{t}[/tex]

Knowing that the speed is 1500 m/s and the required time is 4 s because is the half of the described travel, the distance is then:

[tex]d=s*t\\\\d=1500m/s*4s\\\\d=6000m[/tex]

Therefore, the answer is C) 6000 meters.

Best regards.

Answer:

600 meters i took test ;)

Explanation:

what energy transformations does microwave have

Answers

Answer:

radiant energy

Explanation:

microwaves convert electrical energy into radiant energy

A balance reads an object A to be 45.1 kg. The balance reads another object B to be 33.46 kg. What is the total weight of both objects

Answers

Answer:

The total weight of both object is 78.56 kg.

Explanation:

Given data:

Mass of object A = 45.1 kg

Mass of object B = 33.46 kg

Total weight of object = ?

Solution:

Total weight of both subject must be the sum of weight of object A and B.

Total weight of objects = weight of object A + weight of object B

Now we will put the values of mass of object A and B.

Total weight of objects = 45.1 kg + 33.46 kg

Total weight of objects =78.56 kg

Thus the total weight of both object is 78.56 kg.

In a decomposition reaction, NaCl might form which of the following?

A. H20

B. FeS

C. Na and Cl

D. All of the above

Answers

Answer:

THE ANSWER IS C

Explanation:

In a decomposition chemical change, NaCl might form sodium and chlorine , hence option C is correct.

What is a chemical change?

Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.

There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical changes:

1) inorganic changes

2)organic changes

3) biochemical changes

During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

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What is the last sequence for Silver

4d7
4d7

4d9
4d9

4p2
4p2

3d7

Answers

Answer:

4d₉

Explanation:

Silver is atomic number 47, Ag. So, count to 47 in orbitals:

1s₂ 2s₂ 2p₆ 3s₂ 3p₆ 4s₂ 3d₁₀ 4p₆ 5s₂ 4d₉

2 + 2 + 6 + 2 + 6 + 2 + 10 + 6 + 2 + 9 = 47

This sequence ends in 4d₉, therefore it is the last sequence.

If you have six molecules of CO2how many oxygen atoms do you have?

Answers

12 oxygen atoms and 6 carbon

________ is a trend making computers ubiquitous?

Answers

Answer:

Pervasive computing, also called ubiquitous computing, is the growing trend of embedding computational capability (generally in the form of microprocessors) into everyday objects to make them effectively communicate and perform useful tasks in a way that minimizes the end user's need to interact with computers as ...

Explanation:

sxty-D

1. What fraction of the elements on the periodic table are metals?

Answers

Answer:

80%

Explanation:

In the 17th century, British biologist Robert Hooke discovered the cell. A little more than a century later, French botanist René Henri Dutrochet concluded that all living things arise from cells, and all cells are derived from other cells. Dutrochet's proposal indicates that —

A
cells are the highest level of organization in a living organism.

B
cells are not a level of organization in a living organism.

C
cells alternate between being the highest and lowest level of organization in a living organism.

D
cells are the lowest level of organization in a living organism.

Answers

Answer: A

Explanation:

Robert Hooke discovered the cell. Cells are the highest level of organization in a living organism. so, option A is correct.

What is cell ?

Cell is the smallest unit that can sustain life on its own and makes up all living things, including the body's tissues. It is a small unit of organism containing nucleus.

The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell. The cell membrane encloses the cell and regulates how substances enter and exit the cell.

After using a very early microscope to examine a piece of cork, Robert Hooke proposed the name "cell" in 1665, derived from the Latin cella, which means "storeroom or chamber." It is also claimed that he believed the rectangular chambers to resemble some monastic cells.

Thus, option A is correct.

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what is gravity and weight please answer

Answers

Weight is the force of gravity on an object. Weight depends on the strength of the gravitational field the object is in and the mass of the object. ... Mass is constant anywhere in the universe, whereas weight depends on the gravity where the object is present (Earth, the moon, Jupiter, etc.).

why are divergent boundaries are also called a constructive boudary

Answers

Answer: Divergent boundaries are where two of those plates are moving away from each other. They are called constructive plates because when they move apart, magma rises up in the gap- this forms volcanoes and eventually new crust.

Explanation:


What is the difference between A and B? In your answer, describe the state of matter in each picture AND the key property of gas being shown.

Answers

For A it seems that the molecules are freely moving around and vibrating as well- indicates liquid. At B, the molecules are rigid with very less energy - indicating solid.

Easy Question. Will mark brainliest

Carbon combines with oxygen to form two compounds, carbon monoxide and carbon dioxide. Based on the law of multiple proportions, describe how the proportions of oxygen in the two compounds relate to each other.

Answers

Answer:

Their components

Explanation:

It's simple enough, the components in carbon dioxide and carbon monoxide both have at least one carbon and one oxygen atom. However, they differ because their amount in the molecules is different, and that is because of their covalent bonds. Carbon dioxide has to double electron bonds while carbon monoxide has a rare triple electron bond.

a wavelength of 4.73 x 10-7 m, and a frequency of

Answers

Answer:

Frequency =0.634×10¹⁵ s⁻¹

Explanation:

Given data:

Wavelength = 4.73×10⁻⁷ m

Frequency = ?

Solution:

Formula:

speed of light = wavelength× frequency

speed of light = 3×10⁸ m/s

Now we will put the values in formula.

3×10⁸ m/s = 4.73×10⁻⁷ m × frequency

Frequency = 3×10⁸ m/s /4.73×10⁻⁷ m

Frequency =0.634×10¹⁵ s⁻¹

s⁻¹ = Hz

Frequency =0.634×10¹⁵ Hz

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