How many moles of O2 are required for the complete reaction of 1.60 moles of C2H4 to form CO2 and H2O? Use the balanced equation: C2H4 + 3O2 --> 2CO2 + 2H2O

113 mol
4.80 mol
48.0 mol
0.64 mol

Answers

Answer 1

Answer:

4.80 mol is the answer

Explanation:

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Answer 2

4.8 moles

Balanced equation: C₂H₄ + 3O₂ --> 2CO₂ + 2H₂O

C₂H₄  : 1.60 moles

use molar ratio:

3O₂ : C₂H₄

3 : 1

moles of O₂ : 3 * 1.6 = 4.8 moles


Related Questions

1. What happens when an environment reaches its carrying capacity?

A. The population will decrease B. The population will increase

C. The resources will be unlimited

D. Nothing will happen.

Answers

Answer: b. population will decrease

Explanation:

since earth only has a finite amount of resources, it could only support a set amount of people. once these sources can no longer be used, the population will decrease because resources can no longer support the population.

The distance between a carbon atom and an oxygen atom in the co molecule is how far from the carbon atom is the center of mass of the molecule?

Answers

Answer:

1.12x10-10 or 0.63 ewan

Explanation:

Correct option is C)

The distance of centre of mass from carbon atom is,

xcm=m1+m2m1x1+m2x2

=12+1612×0+16×1.1

=0.63A˚

Thus, the centre of mass is 0.63A˚ from carbon atom.

The distance between a carbon atom and an oxygen atom in the co molecule is 0.63

What is the distance?

Distance is the measurement of the farness of two objects from each other.

The distance between the molecules can be calculated by the given formula

[tex]xcm = m_1+m_2m_1\times 1+m_2 \times 2[/tex]

Putting the values in the equation

[tex]xcm = 12+1612 \times 0+16 \times 1.1 = 0.63 A^\circ[/tex]

Thus, the distance between a carbon atom and an oxygen atom in the co molecule is 0.63

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At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction. X joules less than X joules more than X joules There is not enough information to know.

Answers

If an athlete has X joules of mechanical energy at the top of the hill, he will have the same X amount of energy at the bottom of the hill.

What is mechanical energy?

Mechanical energy is the addition of kinetic and potential energy. It can be either kinetic or potential energy.

It is the energy possessed by the position or the motion of the body.

It is the energy present to perform any work.

So, the athlete will have X joule of energy at the top and bottom of the hill.

Thus, the correct option is a, X joules.

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Answer:

X Joules

Explanation:

Justify why sound cannot travel through space.

Answers

Answer:

Sound does not travel at all in space. The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound.

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Compared to the nucleus 5626fe, what is the density of the nucleus 112 48cd?

Answers

For a comparison of the nucleus 5626fe, the density of the nucleus 112 48cd is mathematically given as the same.

n(Cd) / n(Fe)=1

What is the density of the nucleus 112 48cd?

Generally, the equation for the density  is mathematically given as

d=\frac{A}{4/3}\piR^3

Therefore

n(Cd) / n(Fe) = [A (Cd) / (A Fe) ] * [ R (Fe) / R (Cd)]^3

n(Cd) / n(Fe)= (112 / 56 ) * (1/1.26)3

n(Cd) / n(Fe)=1

In conclusion, The ratio of n(Cd) = n(Fe) is 1, hence same

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Compared to the nucleus ⁵⁶₂₆Fe, the density of the nucleus ¹¹²₄₈Cd is same.

How do we calculate the density of nucleus?

Density of any nucleus will be calculated by using the below equation as:

ρ = m/V, where

m = mass of the atom

V = volume = 4/3πR³

For the given question calculation will be proceed as:

n(Cd) / n(Fe) = [m(Cd)/m(Fe)].[R(Fe)/R(Cd)]³

From the given formulas of iron and cadmuim we put values on the above equation then we get,

n(Cd) / n(Fe) = (112 / 56 ) × (1/1.26)3

n(Cd) / n(Fe) = 1

Hence the density of nucleus ¹¹²₄₈Cd is same as of nucleus ⁵⁶₂₆Fe nucleus.

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How many molecules are in 12.8 moles of CO2?
A. 563 molecules
B. 0.291 molecules
C. 2.13 x 10^{-23} molecules
D. 7.71 x 10^{24} molecules

Answers

Answer: D. 7.71 x 10^24

Explanation:

12.8 moles CO2 (6.02 * 10^23 molecules / 1 mol) = 7.7 * 10^24 molecules :)

An unknown gas with a mass of 205 g occupies a volume of 20.0 L at 273 K and 1.00 atm. What is the molar mass of this compound?

Answers

The molar mass of this compound is 0.004 m/g

Firstly, molar mass is moles/grams so we need to solve for the number of moles and we were already given the grams (205 g).

So to solve for moles we were given 205 g, 20.0 L, 273 K and 1.00 atm. Knowing these numbers we can plug them into the ideal gas law, PV=nRT

where P is pressure, V is volume, n is number of moles, R is the gas constant (in this case it is 0.08206) and T is the temperature.

[tex]PV=nRT\\\\n=\frac{PV}{RT}\\\\n=\frac{1.00*20.0}{0.08206*273} =0.893[/tex]

Next, we use moles and grams to solve for molar mass:

[tex]\frac{0.893}{205} =0.004[/tex]

Which location represents a period on a periodic table?.

Answers

the horizontal rows of the periodic table are called periods.

What is the Electronegativity difference of C and S?

Answers

Answer:

S 2.6 [2.58] & C is 2.6 [2.55]

Explanation:

Tear off a small, flat sheet of waxed paper. Use the pipette to dispense a drop of water on the waxed paper. Now, dry the pipette, and use it to dispense a drop of oil on the waxed paper next to the water drop. Be sure the two drops are not touching. Compare and describe the appearance of both drops.

Answers

Answer:

Explanation:

When comparing the drops of oil and water, one thing I noticed was the shape. The water drop was more defined, whereas the drop of oil began to spread and was much flatter. This may be due to the waxy material, and how both oil and water react to the wax.

Ancient
grew to 40 m, but are smaller today.

Answers

Answer:

Club mosses

Explanation:

hope this helps

Two posssible lewis structures for the molecule ch2s are given. determine the formal charge on each atom in both structures

Answers

The formal charge on each atom can be known by counting up the number of valence electrons that is present on each atom.

What is Lewis structure?

The term Lewis structure is the representation of a compound using its symbols and showing the valence electrons as dots. This question is incomplete as the Lewis structures were not shown.

If it is shown, we can know the formal charge on each atom by counting up the number of valence electrons that is present on each atom.

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hello people~
Polyethylene terephthalate belongs to which class of synthetic polymer?

A. None of these

B. Polyolefin

C. Nylon

D. Polyester​

Answers

Answer:

Polyester

Explanation:

Polyethylene terephthalate or shortly known as PET its a clean and strong polyesterIt is used in packaging

A radioactive nucleus emits a beta particle, then the parent and daughter nuclei are

⇢Isotones
⇢Isotopes
⇢Isomers
⇢Isobars​

Answers

Answer:

isobars

Explanation:

How?

A radioactive nucleus emits beta particle(Like uranium,radium) So the mass numbers are same for daughter nuclei .They have different atomic numbes .

So they are isobars

One mole of copper atoms is 6.02 x 1023 copper atoms.
True or false?

Answers

Answer:

Explanation:

The relation between molecular (formula) mass and molar mass page 44 . To obtain one mole of copper atoms (6.20 x 1023 ne atoms) weigh out 63.55 g copper. The molar mass (M) of a substance is the mass of one mole of entities (atoms, molecules, or formula units) of the substance.

Can someone do this fill in the blanks

Answers

Answer: aragon is in group 0

2. It’s a non metal

3. Group number

Explanation:

SCIENCE help pls need kna​

Answers

I answered your question in the photo sent

Good luch

(PLEASE ANSWER!)
2H20 + 2Na --> 2NaOH + H2

which of these is a reactant in this chemical reaction?

A. hydrogen
B. nitrogen
C. oxygen
D. water​

Answers

Answer:

Water (H2O) and Sodium (Na) are reactants.

Explanation:

2H2O+2Na......2NaOH+H2

In the above reaction the water (H2O) and sodium (Na) are reactants and sodium hydroxide (NaOH) and hydrogen are products.

And this is the single displacement reaction.

Stirring iced tea mix into water is a chemical change?

Answers

Answer:

true

Explanation:

it changes the chemicals in the water and adds new ones

What is the minimum quantity of energy that must be possessed by the reactants for a reaction to occur?
Group of answer choices

Collision model

Thermal energy

Catalyst

Activation energy

Answers

Answer:

Activation energy :)

Explanation:

The activation energy starts the reaction! Without it, we would not find out the solution!

Have an amazing day!!!

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In the electroplating of nickel, 0. 200 faraday of electrical charge is passed through a solution of niso4. What mass of nickel is deposited?.

Answers

The mass of nickel, Ni deposited when 0.2 faraday of electrical charge is passed through a solution of NiSO₄ is 5.9 g

Balanced equation

Ni²⁺ + 2e —> Ni

Molar mass of Ni = 59 g/mol

Mass of Ni from the balanced equation = 1 × 59 = 59 g

Number of faraday = 2

SUMMARY

From the balanced equation above,

2 faraday deposited 59 g of Nickel

How to determine the mass of nickel deposited

From the balanced equation above,

2 faraday deposited 59 g of Nickel

Therefore,

0.2 faraday will deposit = (0.2 × 59) / 2 = 5.9 g of Nickel

Thus, 5.9 g of Nickel were deposited in the process

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Answer:

5.9 grams

Explanation:

You need 2 faraday to deposit 1 mole of Ni (59 grams) because there are 2 moles of electrons in equation:

Ni+2 + 2e- --> Ni(s)

So, 0.2 faraday will deposit 1/10 of that or 5.9 grams of Ni(s).

what describes the equivalence point on a graph of pH versus the amount of titrant added to a solution ​

Answers

Answer:

Titrant and analyte is a pair of acid and base. ... Equivalence point: point in titration at which the amount of titrant added is just enough to completely neutralize the analyte solution. At the equivalence point in an acid-base titration, moles of base = moles of acid and the solution only contains salt and water.

Explanation:

Strong bases are ____________ of group ____________ metals (ex. ____________ ) or larger group ____________ metals (ex. ____________ ), or oxides of the same metals.

Answers

The strong bases are hydroxides of group 1 and 2 metals (ex. Sodium, Potassium) or larger group transition metals (Copper, Iron), or oxides of the same metals.

Strong bases formulation

It follows from structure of strong bases that they are composed of highly electropositive metals of groups 1 and 2 and the hydroxide ion.

Additionally, transition metals may also form bases with the hydroxide ion or oxides of this transition metals.

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I have 5 questions that need help to answer 1) What are covalent bonds and how do they form ? 2) How do you know which elements and how many of each are in a compound ?
3) How can you find how many valence electrons an atom has ?
4) How many valence electrons do atoms need to be happy? Which elements are the exceptions?

Answers

Answer:

covalent bond- a chemical bond that is the sharing of electron pairs between atoms

What do the neural pathways for taste, hearing, sight, and touch have in common

Answers

Answer:

All of the signals pass through the thalamus

Explanation:

Which images show chemical reactions?

Answers

Explanation:

image 3 and 4show chemical reactions

Answer:

image 3 and 4show chemical reactions

Explanation:

How many potassium ions are needed to bond with a phosphate ion?.

Answers

Since Potassium has a charge of 1+ and Phosphate a charge of 3-, it requires 3 Potassium ions.

K ₃PO ₄

Which ion combines with ba2 to form a compound that is most soluble in water

Answers

Answer:

(2) OH- is the answer.

Explanation:

Hope this helps:)...if not then sorry for wasting your time and may God bless you:)

The ions that combine with Ba2 to form the compound most soluble in water is OH- ion.

What is barium?

Barium is a chemical element with atomic number 58.

Barium reacts with the hydroxide ion to form barium hydroxide. It is also called baryta water.

The reaction is [tex]Ba^2^+ aq + 2OH^- \rightarrow Ba(OH)_2 (aq)[/tex]

Thus, the ions that combine with Ba2 to form the compound most soluble in water is OH- ion.

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After completing their tests, the students make recommendations on how to increase the final temperature of the
mixture
Based on the data in the table, select if the proposed improvements would increase or decrease the final
emperature of the mixture. Place a check mark in the appropriate box in each row.

Answers

Answer: test two

   

Explanation: it sits in between both

Write some of the chemical and physical properties and uses of each natural resource shown in the photos below.

Answers

(a) Granite is the most common igneous rock found on Earth's surface and is used to make many objects that they encounter in their day to day life. It is used to make countertops, floor tiles, paving stone, curbing, stair treads, building veneer, and cemetery monuments

(b) It doesn't have any color and is a tasteless gas. It is free of any kind of toxic, there is no smoke on burning and it has high calorific value. The gas is odorless. However, a chemical called mercaptan is added to it in small amounts to give it distinctive smell of eggs. The commercial sector uses natural gas to heat buildings and water, to operate refrigeration and cooling equipment, to cook, to dry clothes, and to provide outdoor lighting. Some consumers in the commercial sector also use natural gas as a fuel in combined heat and power systems.
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