Chemistry High School

Most of the world’s energy comes from what three sources?

These energy sources are called ______________fuels and they are _____________________ resources.

Most Of The Worlds Energy Comes From What Three Sources? These Energy Sources Are Called ______________fuels

Answers

Answer 1

Answers:

Most of the world’s energy comes from what three sources?

Oil, coal, and gas.

These energy sources are called fossil fuels and they are non-renewable resources.

Fuel type: oil

How it's formed: from the remains of ancient marine organisms

Its uses: transportation, industrial power, heating and lighting, lubricants, petrochemical industry, and use of by-products

Fule type: coal

How it's formed: when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial

Its uses: electricity generation, metal production, cement production, chemical production, gasification, and other industrial uses

Fuel type: gas

How it's formed: decomposed organic matter mixed with mud, silt, and sand on the seafloor

Its uses: heating & cooling buildings, cooking foods, fueling vehicles, and electricity generation

Related Questions

Please help I need answer soon.
A volcanic mountain made up of volcanic ash, cinders, and bombs is called a ___________________.

Answers

Answer:

Cinder cone

Explanation:

What is the process of old crust sinking back into a mantle?

Answers

What is subduction? Subduction is the process which the ocean floor sinks beneath a deep-ocean trench and back into the mantle. (A process by which part of Earth's crust sinks downwards).

28)
What is a molecule made from joining together small molecules called monomers?
A)
amino acid
B)
glucose molecule
nucleotide
D)
polymer

Answers

Answer:

D [polymers]

Explanation:

The joining of monomers (small molecules) is polymerization.

The answer is c gluecose

What do you predict might happen if groundwater sources around the world continue to be depleted faster than they are restored?
I'll mark brainliest!

Answers

Pumping groundwater faster than it can recharge can lead to dry wells, especially during droughts.
Hope this helps!

C.
Calculate the number of moles in 62g of CO2

Answers

Answer:

32÷5

I'm just tryna get points I'm sorry

goodluck tho❤

Number of moles: 62 grams
Molar mass of CO2: 44.01 (we will take it as 44)
Basically: molar mass/moles -> 44/62 ≈ 1.41 .

Which substance cannot be separated or broken down into simpler substances by chemical means?


table salt

gold wire


candle wax


water vapor

Answers

Answer: Gold Wire

Explanation:

Out of all of these options only gold wire is an element, elements are pure and cannot be broken down by any chemical means

hope it helped, good luck :)

Which of the following is an indicator that a chemical reaction occurred?
A precipitate is formed
The state of matter changed
It was melted
The identity of the substance did not change​

Answers

Answer:

the state of matter changed

Explanation:

Answer:

A) A precipitate is formed

Explanation:

occurs in aqueous solution when two ions bond together to form an insoluble salt, which is known as the precipitate.

make this and tell me how u like it its fat lady from hairy pawter find the pics on elgoog or use mine movie and site was changed its on scratch a web

Answers

Answer:

are u brocken

Explanation:

What is the Molar Mass of MgO?

Answers

Answer:

The answer should be 40.3044 g/mol

How many molecules are there in 24 grams of HSO₃?

Answers

1.2×1023 molecules
That should be you’re answer. Have a good day ☺️

The diagram shows a large, eroded rock tower found in Southern Utah.
Which most likely caused the erosion?
C sunlight
O A animals
D. water
B. plants

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Sunlight not sure tho but I think is sunlight

A mass of 80 grams of Bromine would be

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I’m pretty sure it’s a

Which type of fuel do you predict might have the
greatest impact on carbon dioxi de levels in the
atmosphere?

Please answer this. If your just gonna give me a fake answer please just don’t

Answers

Answer:

If the choices were coal, petroleum, and natural gas, I would say that petroleum has the greatest impact on the CO₂ levels in the atmosphere. I chose petroleum because of transportation, such as cars, trucks, planes, and more.

What is the mass of sulfuric acid, H2SO4, that is contained in 2.0 L of a 5.85 M solution ?
A-1147.44 grams
B- 0.12 grams
C-11.7 grams
D-98.07 grams

Answers

D.-98.07 Grams this means that every mole of sulfuric acid has a mass of 98.0795g.

2LiBr Pb(NO3)
2 → PbBr2 2LiNO3

Answers

Is this a complete question?

A new organism is discovered. It is multicellular, heterotrophic, and does move on its own. To which two kingdoms could the organism belong?

Answers

Answer:It is a plant

Explanation:

A new organism is discovered. It is multicellular, heterotrophic, and does move on its own. The organism belong to Kingdom Animalia.

What do you mean by heterotrophs ?

A heterotroph is an organism that obtains energy and nutrients from other plants or animals. The term is derived from the Greek words hetero, which means "other," and trophe, which means "nourishment."

Fungi are multicellular, heterotrophic eukaryotes with chitinous cell walls. Kingdom Plantae contains autotrophic organisms with cellulosic cell walls, whereas Kingdom Animalia contains heterotrophic organisms without cell walls.

Animalia is a kingdom of multicellular, heterotrophic organisms. This kingdom includes humans and other primates, as well as insects, fish, reptiles, and a variety of other animals.

Thus, The organism belongs to Kingdom Animalia.

To learn more about the heterotrophs, follow the link;

https://brainly.com/question/25846728

#SPJ6

Match the different methods used for calculating revenue and profit to the formulas used for calculating them. total revenue average revenue marginal revenue gross profit net profit

Answers

Answer:

See explanation below

Explanation:

1) Total Revenue:

Total revenue refers to the total amount of income that is generated when a company sells or offers their service.

It is usually calculated as the product of the product or services sold by the quantity.

It is calculated by ;

TR = Q * P

Where TR = Total Revenue

Q = Quantity

P = Price

2.) Average Revenue:

Average revenue is the revenue gotten by a company per unit of output sold. It is calculated by:

AR = TR / Q

Where AR = Average Revenue

TR = Total Revenue

Q. = Quantity

3.) Marginal Revenue:

This is the net revenue that is generated by selling an additional unit of commodity; which is the change in total revealer unit. It is calculated by:

MR = change in Total Revenue / change in Quantity

Where MR = Marginal Revenue

4.) Gross Profit:

Gross profit is the amount of revenue left after factoring out the cost of production and sales and servicing.

It is calculated by subtracting revenue from the cost of goods sold -

Gross Profit = Revenue - Cost of goods sold

Net Profit:

Net profit is the amount of money a company has left after subtracting all interests, tax expenses and cost.

It is calculated by;

Net Profit = Gross Profit - Expenses

Gerald's science teacher mixed liquid X and liquid Y, both at room-temperature, in a large beaker. two beakers of clear solutions to the left of a right-pointed arrow, and a large beaker with a clear solution to the right of the arrow The mixture in the large beaker still looked clear like water, but when the students, one at a time, carefully touched the outside of the large beaker, it felt warm to the touch. Why did the large beaker most likely feel warm? A. The two liquids were not soluble in water. B. The release of a gas heated the solution. C. A chemical reaction produced a new substance. D. The energy of mixing warmed the liquids.

Answers

Answer:

c

Explanation:

A chemical reaction produced a new substance. In a chemical reaction, the atoms that make up the reactants are rearranged to produce various products.

What is chemical reaction?

chemical reaction, the transformation of one or more chemicals (the reactants) into one or more distinct compounds (the products). Chemical elements or chemical compounds make up substances.

A chemical reaction is one in which  two or more reactants will react to form a new substance. When new substance will form it will produce heat. Therefore, when science teacher was mixing two liquids it was generating heat.

Heating a substance allow molecules to move faster. When heat is given to the object it will move fast. When heat will apply to a solid it will turn into liquid. When heat is supplied to the liquid it will turn into gas.

Therefore, A chemical reaction produced a new substance. In a chemical reaction, the atoms that make up the reactants are rearranged to produce various products.

To learn more about chemical reaction, refer to the link:

https://brainly.com/question/22817140

#SPJ5

Aluminium is a metal give reason​

Answers

Answer:

Aluminium is ordinarily classified as a metal. It is lustrous, malleable and ductile, and has high electrical and thermal conductivity. Like most metals, it has a close-packed crystalline structure and forms a cation in an aqueous solution.

A solution of 12M HCl is diluted so that it goes from 550mL to a total volume of 1000mL. What is the new concentration of the solution?

Answers

Answer:

6.6M

Explanation:

C=concentration

V=Volume

C1V1=C2V2

rearrange formula to find C2

(C1V1)/V2= C2

(12M x 550mL)/1000mL= C2

6600M*mL*/1000*mL* =C2 (cancel units)

6.6M=C2

List the elements and the amounts of each element below for 5 Li2S04.​

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Answer:

Lithium has 5 elements, sulphur has 2 elements and oxygen has 4 elements

If there is a third-quarter moon on July 2 , what is the approximate date of the next full moon?

Answers

Answer:

July 23

Explanation:

please help me with these questions, im not understanding :(

Answers

Answer:

this is all the answers i hope you have a good day

Explanation:

may i please have a branlliests

Select which of the following is a major disadvantage of using nuclear power to generate electricity.



The power plants are inexpensive to build


A small amount of power is produced


No greenhouse gases are produced


The by-product of nuclear power is radiation

Answers

Answer:

The power plants

are inexpensive to build

Numbers 15-21

HELP PLEASE!!

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I wish I could help you, but I cannot see your paper. Please re-upload so I can help you : )
Re upload the pic I can’t see it ://

A student dilutes 50.0 mL of a 0.10 mol/L to 0.010 mol/L. Which statement is true?​

Answers

The total amount of solute decreases.

Suppose you have 1000 lb of waste copper (II) oxide sitting in the basement of your factory. Do you see a problem with sending it to a landfill?

Answers

Answer:

Yes.

Explanation:

Yes, we have a problem with sending it to a landfill of copper oxide because it has harmful effect on the health of humans as well as more weight of the copper oxide. Copper oxide usually found in powder form which can easily be inhaled that causes death of the cell due to toxic effect on the mitochondria and lysosomes of the cell. It makes problem of health in carrying the copper oxide from the basement of the factory to the landfill region due to its power form so we can say that it can do problems  to human health while carrying from one place to another.

1. How many moles are in 24.6 grams of NaCl?

If someone could give an explanation along with an answer that would be appreciated :)

Answers

The gram to mole conversion is pretty simple. First you need to find the molar mass of the compound. The way you do that is take the combined atomic mass and convert it to grams (that’s mass of a single mole of that compound). For this example sodium’s atomic mass is 22.9 amu and chlorine’s is 35.45 amu. The molar mass of sodium chloride is those two number combines IN GRAMS.

22.99g + 35.45g = 58.44g

Now to find out 24.6g of Sodium Chloride you will divide the number of grams in a problem by the molar mass.

24.6 / 58.44 = 0.421 mol of NaCl

Think about a wooden chair and a balloon. What do these two objects always have in common?


Both are made of atoms.


Both have the same physical properties.


Both are made of the same kind of atom.

Both are made of the same number of atoms.

Answers

Answer:

both are made of atoms. .

Answer:

Both are made of atoms.

Explanation:

What is the mass of sulfuric acid, h2so4, that is contained in 2.0L of a 5.85 M solution ?
A- 1147.44 grams
B- 0.12 grams
C- 11.7 grams
D- 98.07 grams

Answers

Answer:

A. 1147.44 grams

Explanation:

Multiply volume by molarity to get the moles of solution.

5.85 M = mol/2.0 L

mol = (5.85 M)(2.0 L)

mol = 11.7

There is 11.7 moles of H2SO4.

Convert to grams with molar mass.

11.7 mol H2SO4 x (98.076 g/1 mol) = 1147.49 g

Closest answer is A, 1147.44 g.

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