Chemistry High School

can you write the answer for lot of points ​

Can You Write The Answer For Lot Of Points

Answers

Answer 1
Work=2400JDisplacement=6m

[tex]\\ \sf\longmapsto Work=Force\times Displacement [/tex]

[tex]\\ \sf\longmapsto Force=\dfrac{Work}{Displacement}[/tex]

[tex]\\ \sf\longmapsto Force=\dfrac{2400}{6}[/tex]

[tex]\\ \sf\longmapsto Force=400N[/tex]

Related Questions

moles
Calculate the number of moles of 3.00 g of boron tribromide,

Answers

boron tribromide = bBr3
mol = mass/mr
mol=3/10.811+3(79.904)
= 0.018772527032439

Is the gin world scary? ​

Answers

Answer:

Gin= Machine that picks cotton

Explanation:

This Machine was used in the early 1940s to help pick cotton to make things.

under which conditions do you expect helium gas to deviate most from ideal behavior?

Answers

Deviations in Ideal gas behavior increase at higher pressures and lower temperatures.

Answer:

Explanation:

[2-0] NC Special Operation

[2] Supervisor

[2-1] Emergency Response

[2-2] Juggernaut

[2-3] Commander

[2-4] Division Director    

Please help me, I'm stuck and I don't know how to do it.

How many atoms are there in 7.02 g Si ?

Answers

Answer:

1.51e23 atoms

Explanation:

First, using the molar mass of Si (28.1 g/mol), determine the # of moles of Si we have. Then use Avogadro's number (6.022e23 atoms = 1 mol) to convert the # of moles to the # of Si atoms.

(7.02 g Si)([tex]\frac{1 mol}{28.1 g}[/tex]) = 0.250 mol Si              

(0.250 mol Si)([tex]\frac{6.022*10^{23} atoms }{1 mol}[/tex]) = 1.51e23 atoms    

The atomic mass of Silicon (Si) is 28.09 g/mol. The no. of atoms present in 7.02 g of Si is 1.46 × 10²³.

What is a mole?

Any substance containing  6.022 × 10²³ atoms is called one mole of that substance.  The no.of moles can be calculated by dividing the given weight by the atomic mass of the substance.

Atomic mass of Si = 28.09 g/mol

      Given mass    = 7.02 g.

       No.of moles  = 7.02 g/ 28.09 g/mol

                             = 0.24 moles

One mole contains  6.02 × 10²³ atoms. Thus 0.24 mole of Si contains  6.02 × 10²³ × 0.24  = 1.46 × 10²³ atoms.

Hence, no.of atoms present in 7.02 g of Si is 1.46 × 10²³ .

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When a gas is collected over water, the partial pressure of water must be subtracted from the total pressure. If the total pressure was 761 mmHg and the pressure for water is 17.2 torr, what is the pressure due to the gas collected

Answers

Answer is: the partial pressure of the hydrogen 500 mmHg.

p(total) = 523.8 mmHg.

p(water) = 23.8 mmHg.

p(total) = m(water) + p(hydrogen).

p(hydrogen) = p(total) - p(water)..

p(hydrogen) = 523.8 mmHg - 23.8 mmHg.

p(hydrogen) = 500 mmHg.

mmHg or millimeter of mercury is a manometric unit of pressure.

Please help This is for my chemistry class and I need to get it done but I’m lost and need answers

Answers

Answer:

chlorine is a non metal.

sodium is a alkali metal.

helium is a noble gas.

nickel is a transition metal

Which factor most often affects wind and weather patterns on Earth?

Answers

Answer:

i think its solar radiation

What is the role of cellular respiration in organisms?

to provide energy for photosynthesis
to provide energy for breaking apart fuel molecules
to provide energy for making oxygen
to provide energy for cell activity

Answers

Answer:

C. sorry if I'm wrong ...................

What is infrared energy? simplify it

Answers

Infrared energy is the energy of light between microwave radiation and Ultraviolet radiation

Answer:

It is a type of radiant energy that's invisible to human eyes but that we can feel as heat.

When pyridine is treated with a mixture of nitric and sulfuric acids, the major product is:.

Answers

Answer: 3-nitropyridine

Explanation:

Complete combustion of 6.4g of compound K produced 8.8 g of carbon dioxide and 7.2 g of water. Calculate the empirical formula of K. ​

Answers

Lh (x1)78.009+1= 0.0000567

the distance between two successive peaks is called

Answers

wavelength-
the distance between two successive peaks on adjacent waves is its..

The letter for element Q stands for "qualium." What would the compound in 1a be called?
(1 A)

Answers

Answer:

ooooooooooo0000000000000

Which of the following shows a valid combustion reaction?

2Al + 2O2 → 2AlO + O2
C2H4 + 3O2 → 2CO2 + 2H2O
2CH4 + O2 → 2CO + 4H2
Ca + O2 → CaOH

Answers

Answer:   C2H4 + 3O2 → 2CO2 + 2H2O

Explanation:

2Al + 2O2 → 2AlO + O2            Not Balanced Properly:  2Al + O2 = 2AlO  

C2H4 + 3O2 → 2CO2 + 2H2O  Looks Good

2CH4 + O2 → 2CO + 4H2          Not Correct:  CO should be CO2

Ca + O2 → CaOH                        Not Balanced and No source for the H

Answer:

2H4+3O2 →2CO2+2H2

Explanation:


Which of the following would make a solution
A. Sand in water
B. Oil in water
C. lee in water
O D. Sugar in water

Answers

It would be, Sugar in water
The answer is sugar in water, because when you stir sugar into a glass of water you are forming a solution. Hence, As the sugar molecules spread evenly throughout the water, the sugar dissolves.

The reactants A and B react completely in a sealed container to form a product. What is the mass of the product of the reaction between 3.0 grams of reactant A and 5.7 grams of reactant B?

Answers

Answer:

I'm pretty sure it is 8.7

Explanation:

and btw you are fineeee

help me please the subject is siecnce

Answers

Answer:

okay your question in science

Match the vocabulary word to its definition.
neutron
the central part of the atom containing
protons and neutrons
proton
a negatively charged particle that orbits
the nucleus of an atom
nucleus
a neutral particle located in the nucleus
of an atom
electron cloud
a positively charged particle located in
the nucleus of an atom
electron
the area of the atom surrounding the
nucleus where electrons can be found
Intro
Done

Answers

Answer:

neutron --> a neutral particle located in the nucleus of an atomproton --> a positively charged particle located in the nucleus of an atomnucleus --> the central part of the atom containing protons and neutronselectron cloud --> the area of the atom surrounding the nucleus where electrons can be foundelectron --> a negatively charged particle that orbits the nucleus of an atom

Valence electrons are electrons in the ? of an atom.

Answers

Answer:

Valence electrons are the outermost of  electrons.

Explanation:

valence electrons are the outermost electrons of an atom located in the shell/ orbit

what is the name of the high-energy compound that cells use to fuel chemical reactions?

Answers

Answer: Adenosine triphosphate, or ATP, is the primary carrier of energy in cells. The water-mediated reaction known as hydrolysis releases energy from the chemical bonds in ATP to fuel cellular processes.

Explanation:

The energy released by a nuclear fusion reaction is produced when
1. energy is converted to mass
2. mass is converted to energy
3. heat is converted to temperature
4. temperature is converted to heat

Answers

Answer:

2

Explanation:

energy produced in nuclear fusion or even fission is due to mass defect and it can be calculated by Einstein equation e=mc2

The statement, that describes energy released by a nuclear fusion reaction is produced is "mass is converted to energy."

What is nuclear fusion?

Nuclear fusion is the process by which two light atomic nuclei merge to produce a single heavier one, releasing huge quantities of energy in the process.

A fusion reaction occurs when two light nuclei combine to form a single heavy nucleus. Because the overall mass of the resulting single nucleus is smaller than the mass of the two initial nuclei, the process releases energy.

That is, nuclear energy refers to the energy released as a result of mass loss during the nuclear fusion processes. Both of these processes transform mass loss into energy in accordance with Einstein's mass-energy ratio, E = [tex]mc^{2}[/tex]. As a result of the fusion reaction, mass is destroyed and energy is released.

Hence, the correct answer is 2.

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How do you produce a buffer.

Answers

Answer:

Buffers can be made from weak acids or base and their salts.

Explanation:

hope this helps!

(if not tell me in the comments and i will try to help you!)

Answer:

Buffers are made by adding a strong acid or base to a weak acid or base.

Explanation:

put these atoms in order of increasing radius: Na, Mg,Cl, P

Answers

Answer:

Cl < P < Mg < Na

Explanation:

Cl must have the smallest radius because it is located to the right of the remaining elements on the same row. P  must have the second smallest radius because it is located to the right of the remaining elements on the same  row. Mg must have the Third smallest radius because it is located to the right of Na on the same row.  Therefore, Na has the Largest radius.

I hope it helps.

What is the mass of oxygen atoms in 0. 380 mol fe(co)5?.

Answers

Answer:39+30

Explanation:

Potential energy depends on

Question 2 options:

Length and color


Position or shape


Density and volume


Speed and velocity

Answers

Answer:

Explanation:

Speed and velocity I think

fork is a metal or nonmetal ?

Answers

It is a metal because forks are made from metals

7. What is the name of the compound AICO3?

Answers

Answer:

Calcium carbonate

Explanation:

Hope this helps :)

Have an amazing day <3

It is Aluminum Carbonate

A disadvantage of disposing of waste polymers through _____ is that they must first be separated, which can be expensive. What is the missing word in this sentence?

Answers

A disadvantage of disposing of waste polymers through recycling is that

they must first be separated.

Recycling is the process of forming new polymers and compounds as against their disposal .

Recycling involves separating the items into various sections such as paper,

plastic , metal etc. This is because they both undergo different recycling

processes.

The disadvantage of this process is that it's time consuming and also

expensive as a great amount of time and man power is needed to

separate the waste items.

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Chemical properties of water and oxygen for class 8

Answers

Oxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).Oxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).Chemical formula H2OOxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).Chemical formula H2OMolar mass 18.01528(33) g/molOxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).Chemical formula H2OMolar mass 18.01528(33) g/molOdour NoneOxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).Chemical formula H2OMolar mass 18.01528(33) g/molOdour NoneDensity Solid: 0.9167 g/ml at 0 °C Liquid: 0.961893 g/mL at 95 °C 0.9970474 g/mL at 25 °C 0.9998396 g/mL at 0 °C

what is the total number of valence electrons in ethyl acetate?

Answers

Answer: There are 36 valence electrons.

Explanation:

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, the valence electrons of C₄H₈O₂ is 32.

What is element?

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

A valence electron is a negatively charged particle, located in the outermost shell of an atom, that can be transferred to or shared with another atom. To calculate total valence electrons in C₄H₈O₂, we need to add the individual valence electrons of each element.

Valence electrons of C₄H₈O₂= {valence electrons of C×4}+{valence electrons of H×4}+{valence electrons of O×2}

Valence electrons of C₄H₈O₂= {4×4}+{1×4}+{6×2}

Valence electrons of C₄H₈O₂=32

Therefore, the valence electrons of C₄H₈O₂ is 32.

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