3. How many atoms of hydrogen do 3.575 mol of hydrogen sulfide contain?

Answers

Answer 1

Answer:

4.3043x10^24

Explanation:

Atoms(H) = (3.575 mol H2S/1)(2 mol H/1mol H2S)(6.02x10^23/1molH)

Simple stoicheometry problem. Sorry for taking so long, took Chem sophomore year, its been a while


Related Questions

This is to all the people who keep asking dating questions on brainly



It's not tender

Answers

Answer:

AGREE

Explanation:

thanks for the free points also :)

Help please! I’ll mark brainliest to who ever answers this first!!

Answers

Answer:

paleontologists is the answer to scientist who studies fossil



Transfer of heat through conduction can occur in which of the following?


A. Solids


B. Liquids

C. Gases
D. All of the above

Answers

Answer is D All of the above

If the temperature of a substance increases will the particles of that substance be moving faster or slower or at the same speed as they were before the temperature changed

Answers

Answer:

If the temperature increases, temperature reflects the speed of the molecules, so if the molecules are at a higher temperature, they are faster and they start to break bonds and new things react.

Explanation:

As water is cooled, its density increases until it reaches about
A. 4°C
B. 25°C
C. O'C
D. -2°C

Answers

About 4 C to for water density until it is cooled

Adding or removing thermal energy causes a change in state of matter.
O True
O False

Answers

Answer:"You can change an object's state of matter by adding or removing thermal energy. When you add thermal energy to an object, these things can happen: Particles move faster (increased kinetic energy). Particles get farther apart (increased potential energy)."

Explanation:

TRUE :))) !!!! yup here ya go

Which of the following elements is a metalloid? A. phosphorus B. cobalt C. silicon D. magnesium

Answers

Answer: silicon

Explanation:it just is

Respuesta

es la C. silicio

Explanation:

No existe una definición estandarizada de elemento metaloide ni un consenso completo sobre los elementos que son metaloides.

En la clasificación de metaloides se suelen incluir a:

Boro (B)

Silicio (Si)

Germanio (Ge)

Arsénico (As)

Antimonio (Sb)

Telurio (Te)

Colour in acid of red litmus paper​

Answers

Red

Litmus paper turn red when it comes in contact with acid. It turn blue if it come in contact with a base. Neutral litmus paper is purple

Which of the following describes the energy transformations that occur when a toaster is used to make toast?

Thermal energy is transformed into chemical energy in the toaster, and chemical energy is transformed into thermal energy in the toast.

Electrical energy is transformed into thermal energy in the toaster, and chemical energy is transformed into thermal energy in the toast.

Light energy is transformed into thermal energy in the toaster, and thermal energy is transformed into chemical energy in the toast.

Electrical energy is transformed into thermal energy in the toaster, and thermal energy is transformed into chemical energy in the toast.

Answers

Answer:

Thermal energy (B)

Explanation:

just did it

Electrical energy is transformed into thermal energy in the toaster, and chemical energy is transformed into thermal energy in the toast. Hence option b is correct.

What is chemical energy?

Chemical energy is defined as chemical substances' potential energy, which is released as they experience chemical reactions and change into other substances. Additionally, it is what binds a substance's molecule's together. The body transforms or changes the chemical energy in food into heat and mechanical motion.

The wire attached to the power source transmits electrical energy to the toaster. The heating element is a part of the toaster. This heating element transforms electrical energy into heat energy, which aids in toast preparation, when it comes into contact with it. Thus, with an electric toaster, electrical energy is converted to heat energy.

Thus, electrical energy is transformed into thermal energy in the toaster, and chemical energy is transformed into thermal energy in the toast. Hence option b is correct.

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Why do electrons falling into different orbits give off characteristics wavelengths?​

Answers

Explanation:

Because the difference in energy between orbits is different in different types of atoms, moving electrons between different orbits requires photons carrying different amounts of energy (different wavelengths).

You can see protons yes or no

Answers

No. Not with the naked eye

Carbon dioxide is formed by the given formula.
C(s)+O2(g)→CO2(g)
Carbon dioxide is
A
a compound of two elements, carbon and oxygen.

B
a mixture of two compounds, carbon and oxygen.

C
a compound of two atoms, carbon and oxygen.

D
an element of two atoms, carbon and oxygen.

Answers

Answer:

A

Explanation:

Someone answer these please! It’s multiple choice

Answers

Answer: Number 1 is titanium.

The one where you calculate a tin block is 13.0cm.

3. Is A) Same Density And Same Chemical Properties.

4. Is also A. Ne

Explanation:

what phenomenon occurs after mass extinction?

Answers

Answer:

Diversification and adaptive radiation.

Explanation:

Which of these describes a challenge that the engineer of a high-altitude
airplane would need to consider?
A. More fuel is used at higher altitudes.
B. The airplane may succumb to the power of gravity as lift
decreases at higher altitudes.
C. The airplane may need a heat shield for protection from sonic
booms.
O D. The airplane will create more drag at higher altitudes than lower
altitudes.

Answers

Answer:

I think its (B)

Explanation:

as when the air thins out at higher elevations, your lift decreases so at some point, the plane cant produce enough lift to overcome gravity.

The answer is option B.

A student analyzed an unknown sample that contained a single anion. The sample gave a white precipitate upon addition of a solution of AgNO3 which dissolved in ammonia. Which anion is present in the unknown solution? Write the corresponding net ionic equation.

Answers

Answer:

Chloride ion

Explanation:

The anion present in the unknown solution would be chloride ions.

A white precipitate of silver chloride is usually formed when drops of silver nitrate are added to a solution containing chloride ions. The ionic equation is as below:

    [tex]Cl^- (aq) + Ag^+ (aq) --> AgCl (s)[/tex]

What is one example of pre-exising marine life?


dinosaur egg


shrimp burrow


leaf imprint


bird bone

Answers

Answer:

Shrimp burrow

Explanation:

Shrimp are types of sea life, whales eat them

The correct answer is shrimp burrow (obviously)

whats the formula for mass

Answers

Answer:

The unit of molar mass is kg/mol. Where, m = mass, v = velocity.

Hope that helps :)

Does the model correctly represent the electron dot diagram of magnesium? Why or why not? Check all that apply.
M g with 1 dot above and 1 right.
*{Yes, because the chemical symbol of magnesium is Mg.}
No, because the chemical symbol of magnesium is Mn.
*{Yes, because magnesium has two valence electrons.}
No, because magnesium has seven valence electrons.
No, because both of the dots should be on top of the chemical symbol

Answer 1 and 3

Answers

Answer:

1 and 3

Explanation:

Answer: A and B or 1 and 3

Explanation:

A massless length of twine can withstand a maximum tension of 490 N. The twine is used to spin a 28-kg ball in horizontal circular motion of radius 1.8 m. The ball is spun faster and faster until the twine breaks. What was the maximum speed of the ball?

7.2 m/s
3.2 m/s
5.6 m/s
11 m/s

Answers

Answer:

5.6 m/s

Explanation:

ummmm im in 2nd period and in test prep

Answers

the answer is 2g/mL. hope this helps


This is methane, Methane is gas that is found in small quantities in Earth's atmosphere. Methane is the simplest hydrocarbon,
consisting of one carbon atom and a powerful greenhouse gas. What is the chemical formula for methane?
A)
4CH
B)
C4H
C)
C4H4
D)
CH4

Answers

Answer:

CH4

Explanation:

I looked it up and took the test

Answer:

You go to K12?

Explanation:

Need help ASAP!!please

Answers

It would be option 2 because water is the most dense with 1.0 detergent is the next most dense with .93 and the oil is the least dense with .92

If the atomic number of an element is 16, what is the element's identity?
What is its atomic mass

Answers

Answer: The element is sulfur and the atomic mass is 32.07

Explanation: wasn’t sure what you were asking so gave you both

What does the symbol △ in a chemical equation mean?

Answers

Answer:

Delta, or subject to change.

Explanation:

Δ→ triangle indicates that the reaction is being heated.

What is a chemical equation?

Chemical equations are symbolic representations of chemical reactions in which the reactants and the products are expressed in terms of their respective chemical formulae.

To express heating, we usually use Δ over reaction arrows like:

[tex]CaCO_ 3[/tex]. Δ → [tex]CaO+O_2.[/tex]

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Beaux has purchased a synthetic material for a product he is launching. What is most likely a benefit of this material?

It is biodegradable.
It can be recycled cheaply.
It is heavy.
It can be mass produced.

Answers

Answer:

The answer is D. it can be mass produced

Explanation:

Answer:

The answer is D It can be mass produced.

Explanation:

I just took the test

An object has a mass of 441 g and a volume
of 10 cm3. What is the density of the object
in g/cm3?

Answers

The density is the ratio of the mass to the volume. The density of the object is 44.1 g/cm³.

What is density?

Density (ρ) is the quantitative measurement of the substance having grams of mass that are dissolved per cubic meter of the solution. The density is calculated as:

ρ = M ÷ V

Given,

Mass of the object = 441 gm

The volume of the object = 10 cubic meter

Density is calculated as:

ρ = 441 ÷ 10

= 44.1 g/cm³

Therefore, 44.1 g/cm³ is the density of the object.

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Who knows the answer to this please help

Answers

The number 4 try is because

What is the concentration of a solution of 10. Moles of copper nitrate in 5.0 liters of solution

Answers

Answer:

10.5

Explanation:

well we added together so thats the result

answer this pls thanks

Answers

Answer:  It is element nitrogen. It has an atomic number of 7 and the valence electron is 5. It needs 3 electrons to complete its octet state. That's why sometimes it has the oxidation number of -3 in ammonia.

Yeah i have no idea sorry
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