A generator can produce both _______________________ (DC), which flows in one direction,and AC current;large power plants produce ___________________.

Answers

Answer 1

Answer:

1. direct current. 2. electrical power

Explanation

i believe number 2 is right


Related Questions

How many oxygen atoms are in 75 g of so3

Answers

Explanation:

nso3=75/80 (80=Mr of so3)

n of o= 75x3/80

x of o= 75x3/80x6.02x10 powered by 23

then, the anwer is

[tex] {10}^{23} \times 16.93125[/tex]

sry if im wrong

There are approximately 1.204 x 10²⁴ oxygen atoms in 75 g of SO₃.

To calculate the number of oxygen atoms in 75 g of SO₃, we need to consider the molar mass of SO₃ and Avogadro's number.

The molar mass of SO₃ is calculated as follows:

Sulfur (S) = 32.07 g/mol

Oxygen (O) = 3 x 16.00 g/mol = 48.00 g/mol

Total molar mass of SO₍ = 32.07 g/mol + 48.00 g/mol = 80.07 g/mol

Next, we need to determine the number of moles of SO₃ in 75 g:

moles = mass / molar mass = 75 g / 80.07 g/mol ≈ 0.9369 mol

Since each molecule of SO₃ contains 3 oxygen atoms, we can calculate the number of oxygen atoms by multiplying the number of moles of SO₃ by Avogadro's number (6.022 x 10²³ atoms/mol) and then multiplying by 3:

Number of oxygen atoms = 0.9369 mol x 6.022 x 10²³ atoms/mol x 3 = 1.604 x 10²⁴ atoms

Therefore, there are approximately 1.204 x 10²⁴ oxygen atoms in 75 g of SO₃.

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which substance has more particles 1 mole of gold or 1 mole of water explain your answer .

Answers

Answer:

Neither of them have more particles than the other.

Explanation:

Neither of them have more particles than the other because;

1 mole of any substance usually contains 6.022 × 10^(23) atoms/molecules/particles of that very same substance.

Thus, it will be the same value for Gold (Au) and water(H2O).

What must happen to break a chemical bond?

Energy must be released.

Electrons must be provided.

Energy must be provided.

Answers

Answer:

Energy must be provided

Explanation:

Chemical bonds are initially stable, energy is required to break them apart.

What is the velocity of a wave with a wavelength of 0.03 m and a frequency of
120 Hz?
A. 0.28 m/s
B. 4000 m/s
C. 3.6 m/s
D. 2.5x 10-4 m/s

Answers

Answer:

A

Explanation:

Got a calculation of 8.05297

Answer:

C. 3.6 m/s

Explanation:

I just took a test on a-pe-x and it was correct! :)

if an element forms 1- ion, in which group of the periodic table would you expect to find it

Answers

Many of the elements on the periodic table will always form ions that have the same charge. The alkali metals (shown in yellow) always form +1 ions. The alkaline earth metals (red) always form +2 ions. The halogens (blue) always form -1 ions.

Answer:

the correct answer is 17

A chemist mixed two substances together: a colorless liquid with a strong smell and a white solid with no smell. The substances’ repeating groups of atoms are shown above on the left. After they were mixed, the chemist analyzed the results and found two substances. One ending substance had the repeating group of atoms shown above on the right.

Is the ending substance the same substance as the colorless liquid? What happened to the atoms of the starting substances when the ending substances formed? Be sure to explain your answers to both of these questions.

Answers

Answer:

colorless liquid with a strong smell and a white solid with no smell. The substances’ repeating groups of atoms are shown above on the left. After they were mixed, the chemist analyzed the results and found two substances. One ending substance had the repeating group of atoms shown above on the right.

Explanation:

Identify the type of reactions based on the reactants. Then, predict the products for the following reactions. Make sure to balance the reactions.

a. C3H8 + O2 →

b. HBr + KOH →

c. KCl + AlBr3 →

Answers

Answer:

a) C3H8 + 502 ----> 3CO2 + 4H20.

combustion reaction

b) HBr + KOH ----> KBr + H2O

Neutralization reaction

c)AlBr3 + 3 KCl----> 3 KBr + AlCl3

Redox reaction

Justify the
the importance of solar enengy as on
alternative source of energy in Nepal​

Answers

Answer:

Nepal aims to achieve universal access to clean, reliable and affordable renewable energy solutions by 2030. It is expected to reduce dependence on traditional and imported energy by increasing access to renewable energy. The use of solar energy is more reliable than traditional electricity in Nepal.

According to law of conservation of energy,solar energy is a renewable source of energy as it's heat can be converted to other forms of energy  and can be conserved and is being looked as an alternative in Nepal.

What is law of conservation of energy?

According to law of conservation of energy, it is evident that energy is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1842.

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Which contains more carbon 4.71 g of C6H12O6 or 5.85 g C2H6O?

Answers

Answer:

5.85 g C2H6O has more carbon

Explanation:

Weight of carbon in  4.71 g of C6H12O6

[tex]4.71 * 12.01\\56.5671\\[/tex] grams

Weight of carbon in  5.85 g of C2H6O

[tex]5.85 * 12.01\\70.259\\[/tex] grams

Hence, 5.85 g C2H6O has more carbon

please help me with questions 3, 4 & 5:)

Answers

Answer:

3 C

4 B

5 A

,...............?.

A natural levee is _____.
A. an erosional feature that causes additional sediment to enter the river
B. a depositional elongated ridge formed by moving water that runs parallel to a stream channel
C. an elongated ridge designed by engineers that runs parallel to a stream channel
D. the result of wind erosion

Answers

Answer:

Option C, an elongated ridge designed by engineers that runs parallel to a stream channel

Explanation:

A natural or artificial levee is basically a ridge constructed along a river bank to regulate the water level in the stream.

It run along the river embankment and hence can be said that it runs parallel to the river length

Hence, option C is correct

Cuántos gramos de cloruro de magnesio se pueden obtener si se hacen reaccionar 354,9g de cloruro de titanio (IV) y 285g de magnesio puro, Recuerde que como productos obtiene titanio y cloruro de magnesio.

a. escriba la ecuación balanceada

b. determine el reactivo limite

c. La cantidad de reactivo en exceso

Answers

Answer:

sorry I dont speak Spanish

This is Science

How does the process of photosynthesis help the overall life on earth? (Hint: what does it produce that living things need to live?)

Answers

Answer: Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.

Explanation:

What number should be in front of O2 to balance the equation?

Answers

Answer:

There are now two oxygen atoms on the left and four on the right (in one N2O and three H2O's), so we balance the oxygen atoms by placing a 2 in front of the O2.

The numbers before atoms are the coefficients, and they are used to balance chemical reacions. In the provided example, number in front of O₂ is 3.

Note: Since I do not have the proposed reaction, I provided a random example.

What is a balanced chemical reaction?

A balanced chemical reaction is an equation in which the number and type of atoms are the same on both sides of the arrows.

Following the law of mass conservation, chemical equations should be balanced to ensure that all the reactants appear in the products.

This means that no new atoms appear, and no atoms disappear. The only thing that changes in a chemical reaction is the bond between atoms.

So each side of the equation must be equilibrated concerning the amount and type of atoms.

Coefficients are used to balance reactions. These numbers are located before each atom and indicate the number of units present in the formula.

I do not have the proposed reaction, but I will provide an example using O₂.

4Al + _3_O₂ → 2 Al₂O₃

Reactants ⇒ 4 Al and 3 O₂

                     3 O₂ = 6 O

Products ⇒ 2 Al₂O₃

                    2 Al₂ = 4 Al

                    2 O₃ = 6 O

On each side of the equation we have 4 Al and 6 O. The only thing that changes are the bonds between atoms.

In this case, the coefficient of O₂ is 3.

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Help! Please and thank you

Answers

Answer:

0.20 M

Explanation:

Molarity is the concentration of a solute (MgCl2) in our solution (water). Molarity tells us how many moles of a substance is per Liter. So to figure out Molarity we'll break it down to this formula: Molarity = [tex]\frac{moles}{Liter}[/tex].

We can get moles by converting it from grams -> moles by using the molar mass, which is measured in grams/mol, that is our stepping stone to moles.

The molar mass is the sum of all the substances in the compound, so you'll need to refer to the periodic table.

Molar mass: (24g Mg) + ( 2 x 35g Cl)= 94g

Moles of MgCl2: 45.7g MgCl2 x [tex]\frac{1 mol}{94g MgCl2}[/tex] = 0.49 mol MgCl2

1 kg of water = 1 L so we don't have to convert anything, we can just use 2.40 L.

Molarity of MgCl2: [tex]\frac{0.49 mol MgCl2}{2.40 L}[/tex] = 0.20M

the answers that can be written down are at the bottom

Answers

Answer:

increasing / protons / periods / groups / center / far right / similar

This is science

Can photosynthesis still take place if plants do not receive enough water from the water cycle? Why or why not?

Answers

Answer:

No.

Explanation:

Photosynthesis is the light dependent process which must occur for the plant to live. This process also requires water and carbon dioxide. If photosynthesis does not occur, the plant will die.

If plants do not receive enough water from the water cycle, photosynthesis can be affected, and in severe cases, it may not take place at all.

Why photosynthesis requires water?

Photosynthesis requires water as one of its essential inputs, as it is used in the process of creating glucose and oxygen from carbon dioxide and light energy. Therefore, if plants do not receive enough water from the water cycle, photosynthesis can be impacted, and in severe cases, it may not take place at all.

Water is not only a raw material in photosynthesis, but it is also necessary for the regulation of plant cells' internal pressure, which is essential for maintaining their shape and structure. Without enough water, the cells' internal pressure decreases, causing them to shrink and lose their rigidity. This process is known as wilting.

Hence, water is essential for plant growth and photosynthesis, and if plants do not receive enough water from the water cycle, it can lead to wilting, stunted growth, and a reduction in photosynthesis.

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pls ans quicckk two q

Answers

Answer:

there is nothing here

Explanation:

In balancing a chemical equation, which of the following are you allowed to do?
A) change coeffecients
B) change superscripts
C) change subscripts
D) add new substances

Answers

Answer:

Change Coefficients

Thank you

When you balance an equation you can only change the coefficients(the numbers in front of molecules of atoms). Coefficients are the numbers in front of the molecule. Subscripts are the smaller numbers found after atoms. These cannot be changed when balancing chemical equations

When 25.5 grams of a molecular substance is dissolved in 225g benzene, the solution begins to freeze at -5.05C. Calculate the molar mass of this solute (I need to understand the work, and look at the image attached for the key for benzene.

Answers

Answer:

here :). hope this helps.

What makes up all of the populations in an area

Answers

Answer:

The number of people in that specific area.

Explanation:

ЗKOH + H3PO4=K3PO4 + 3H2O
what is the reaction

Answers

Answer: The given reaction is a neutralization reaction.

Explanation:

When an acid chemically reacts with a base then it leads to the formation of salt and water.

For example, [tex]3KOH + H_{3}PO_{4} \rightarrow K_{3}PO_{4} + 3H_{2}O[/tex]

Here, KOH is a the base and [tex]H_{3}PO_{4}[/tex] is an acid which on chemical reaction with each other leads to the formation of salt [tex](K_{3}PO_{4})[/tex] and water [tex](H_{2}O)[/tex].

Thus, we can conclude that the given reaction is a neutralization reaction.

How many liters of water vapor is produced when 33.4 moles of gaseous ammonia is reacted in the following reaction? Hint: Convert to moles first

Answers

Answer:

4 liters I think actually hold on

Calcium reacts with oxygen to form calcium oxide. Name the
reactants.

Answers

CaO
Calcium reacts with oxygen to form calcium oxide. The chemical equation for this reaction is Ca + O2 → CaO.

Which of the following does not describe a solid

Answers

Answer:

water is not a solid and a rock is a solid

As molecules increase in electrons, what happens to their melting and boiling points?

Answers

In general, ionic compounds have the highest melting and boiling points. Polar covalent compounds have lower melting and boiling points than ionic compounds but higher melting and boiling points than nonpolar compounds.

The extraction of zinc from zinc blend and explain how the zinc oxide be reduced using Carbon monoxide Electrolysis

Answers

Answer:

Zinc blend is Zinc sulphide, ZnS.

ZnS is roasted in air producing ZnO and Sulphur dioxide.

ZnO is reduced to Zn by CO.

Further purification is done by electrolysis.


I need help on this asp

Answers

Answer:

copper or steel

Explanation:

hope this helps

Answer: Plastic.
Explanation:


Which statement best describes the most likely temperatures of Portland, Oregon, and Eugene, Oregon, on this day in January?
А
Eugene was a little colder than Portland because Eugene is a little closer to the coast.
B
Portland was a little colder than Eugene because Portland is a little farther to the north.
С
Portland was much colder than Eugene because Portland was north of the polar jet stream.
a
D
Eugene was much colder than Portland because Eugene was south of the polar jet stream.

Answers

Answer: Hello, There your Answer is Below.

A. Eugene was a little colder than Portland because Eugene is a little closer to the coast.

Explanation:

Hope this Helps you!!

Have a great day!!!

Lichens, a combination of fungi and algae, grow on the surface of rocks. They secrete acids that slowly eat away at the surface of the rock.

Is this an example of chemical or physical weathering?


physical


chemical

Answers

Answer:

Chemical

Explanation:

it is a chemical weathering because it is eating away at the rock instead of actively eroding the rock.

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