Atoms or clusters of atoms that are covalently bonded to carbon and influence the behavior of organic compounds are known as

Answer:

Kc = 105062.5 at 298K

Explanation:

First of all, we state the equilibrium:

3O₂(g) ⇄  2O₃(g)

We know data about equilibrium concentration of oxygen. We suppose 1 mol of oxygen at the begining. During the reaction, x moles have reacted.

As ratio is 2:3, we can determine how many moles of ozone have been produced.

(x . 2)/3

So we have the final concentration of oxygen, so, let's find out x

1 - x = 0.016 moles

x = 0.984 moles

Then, the [O₃] in equilibrium will be (0.984 . 2) /3 = 0.656.

We supose a volume of 1 L, so we have molar concentration to determine Kc. Let's state the expression for it:

Kc = [O₃]² / [O₂]³

Kc = 0.656² / 0.016³ → 105062.5

Answer: A. 2.0 x 10^-50

Explanation: That’s what I got on Edge.

Answer:

x = (20 - 3y) / 5

Explanation:

Let

french fires be represented by = x

cheeseburgers be represented by = y

The equation is given as;

5x + 3y = 20.

Rearrange the equation to solve for the  number of French fries.

This means we are to make french fries (x) the subject of equation

5x + 3y = 20

5x = 20 - 3y

x = (20 - 3y) / 5

Answer:

The coldness will move from the pan to the ice cube. ... Thermal energy moved from a cooler object to a warmer object through radiation.

Explanation:

Answer:

The answer to your question is given below

Explanation:

From the question given above, the following data were obtained:

Concentration (g/mL) = 0.04 g/mL

Concentration (g/L) =?

We can convert g/mL to g/L by doing the following:

1 g/mL = 1000 g/L

Therefore,

0.04 g/mL = 0.04 g/mL × 1000 g/L / 1 g/mL

0.04 g/mL = 40 g/L

0.04 g/mL is equivalent to 40 g/L.

Thus, the concentration (g/L) is 40 g/L

Answer:

V₂ = 1473.03 L

Explanation:

Given data:

Initial volume = 980 L

Initial pressure = 107.2 atm

Initial temperature = 71 °C (71 +273.15 = 344.15 K)

Final temperature = 13°C (13+273.15 = 286.15K)

Final volume = ?

Final pressure = 59.3 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 107.2 atm × 980L × 286.15 K / 344.15 K×   59.3 atm

V₂ = 30061774.4 atm .L. K / 20408.095 atm. K

V₂ = 1473.03 L

Answer:

d the amount of matter in a closed system is the same at the start of a reaction as at the end of the reaction

Answer:

D

Explanation:

i am doing the test rn and i found the answer in other places

Answer:

B. Ovule

Explanation:

pistil holds the stigma and the ovule

stem holds the flower

leaf is just a leaf

Answer:

Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Answer:

The balanced equation of the reaction is given as follows:

M₂CO₃ + 2HCl ---> 2MCl + H₂O + CO₂

The mole ratio of the metallic carbonate to carbon (iv) oxide is 1:1

The metal is Lithium

Explanation:

The balanced equation of the reaction is given below:

M₂CO₃ + 2HCl ---> 2MCl + H₂O + CO₂

From the equation of reaction, 1 ,mole of the metal carbonate reacts with 2 moles of excess HCl to produce 2 moles of the metallic salt, 1 mole of water and 1 mole of CO₂.

The mole ratio of the metallic carbonate to carbon (iv) oxide is 1:1

Molar mass of CO₂ = 44 g/mol

Number of moles of CO₂ in 1.206 g of CO₂ = 1.206 g / 44 g/mol = 0.0274 moles

Therefore, 2.002 g of M₂CO₃ = 0.0274 moles since all the metallic carbonate was reacted with excess HCl

mass of 1 mole of M₂CO₃ = 2.002/0.0274 = 73.06 g

M₂CO₃ =73.06

2 * M + 12 + 3 *16 = 73.06

2M = 73.06 - 60

M = 13.06/2

M = 6.53 g

Since, the metal belongs to group 1, the metal is most likely Lithium as the molar mass of M is closest to Lithium.

The balanced equation of the reaction is defined as the number of atoms present equally in the reactant and products.

[tex]M_2CO_3 + 2HCl ---> 2MCl + H_2O + CO_2[/tex]

The metal "M" in the reaction is Lithium.

The steps for the balanced reaction is as follows:-

After doing all the steps in the reactions the balanced equation of the reaction is given below:

[tex]Li_2CO_3 + 2HCl ---> 2liCl + H_2O + CO_2[/tex]

This is the balanced reaction.

For more information, refer to the link:-

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Answer:

see explanation

Explanation:

The polarity of bonds is determined by electronegativity differences. As a guideline we define bonds as:

ionic if Δχ > 2.0

polar if 2.0 > Δχ > 0.5

nonpolar if 0.5 > Δχ

(X being electronegativity)

The polarity of bonds helps us understand non-covalent forces between molecules, such as hydrogen bonding and dipole-dipole interactions. It also helps us interpret the reactivity of molecules. For example, the Si-H bond (χSi = 1.8, χH = 2.1) is more hydride-like than the C-H bond (χC = 2.5, χH = 2.1). Therefore silanes react with acids to make H2, whereas phosphines (χP = 2.1) and hydrocarbons do not. Similarly, electrophilic substitution reactions occur more readily on Si-H and P-H compounds than they do on C-H compounds.

Answer: calcium ion

Explanation:

The question is incomplete, the complete question is;

3CsBr + Al(OH)3 → AlBr3 + 3CsOH

If 25 g of AlBr3  was produced when 125 mL of a CsBr solution was added, what was the molarity of the CsBr solution?

Answer:

2.25 M

Explanation:

Number of moles of AlBr3   produced = 25g/266.69 g/mol = 0.0937 moles of AlBr3  .

Now, from the reaction equation;

3 moles of CsBr yields 1 mole of AlBr3

Therefore, x  moles of CsBr  will yield 0.0937 moles of AlBr3  

x = 3 * 0.0937 = 0.2811 moles

If 125 mL of a CsBr solution was added

And;

n =CV

where;

n = number of moles

C = concentration of solution

V = volume of solution

C = n/V

C = 0.2811 moles * 1000/125

C= 2.25 M

Answer:

Solids cant react to each other because they are the same room temperature

Answer:

A is the correct answer.

Explanation:

A mixture of solids is the correct answer.

Answer:

36.09% is the mass percent composition of calcium in calcium chloride

Explanation:

Mass percent is defined as one hundred times the ratio between the mass of a compound (In this case, Calcium), and the total mass of the sample:

Mass Percent = Mass compound / Total mass of the sample × 100

Computing the values of the problem:

Mass Percent = 0.690g / 1.912g * 100

Mass percent =

The given question is incomplete. The complete question is:

A chemist adds 95.0 ml of a 1.5M aluminum chloride solution to a flask. Calculate the mass in grams of aluminum chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

Answer:  19.0 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

[tex]Molarity=\frac{n\times 1000}{V_s}[/tex]

where,

n = moles of solute

[tex]V_s[/tex] = volume of solution in ml

moles of [tex]AlCl_3[/tex] = [tex]\frac{\text {given mass}}{\text {Molar mass}}=\frac{xg}{133.34g/mol}[/tex]

Now put all the given values in the formula of molarity, we get

[tex]1.5=\frac{x\times 1000}{95.0\times 133.34}[/tex]

[tex]x=19.0g[/tex]

Therefore, the mass in grams of aluminum chloride the chemist has added to the flask is 19.0

Answer:

2,7,4,6

Explanation:

atoms at the left side should be equal to that of right for an equation to be balanced. so the answer is the final one

a. W = 0 J

b. W = - 308.028 J

Given

Nitrogen gas expands in volume from 1.6 L to 5.4 L

Required

The work done

Solution

Isothermal :

W = -P . ΔV

Input the value :

a. At a vacuum, P = 0

So W = 0

b. At pressure = 0.8 atm

W = - 0.8 x ( 5.4 - 1.6)

W = -3.04 L.atm ( 1 L.atm = 101.325 J)

W = - 3.04 x 101.325

W = - 308.028 J

Answer:

a. Rate constant: 1.2118x10⁻⁴ yrs⁻¹

b. The age of the object is 20750 years

Explanation:

a. We can solve the rate constant in an isotope decay by using Half-Life, as follows:

K = Ln 2 / Half-life

K = ln 2 / 5720 years =

b. The general equation of isotope decay is:

Ln [A] = -kt + Ln [A]₀

Where [A] is concentration of the isotope after time t,

k is rate constant

and [A]₀ initial concentration of the isotope.

Computing the values of the problem:

Ln [0.89x10⁻¹⁴] = -1.2118x10⁻⁴ yrs⁻¹t + Ln [1.1x10⁻¹³]

-2.5144 = -1.2118x10⁻⁴ yrs⁻¹t

20750 years = t

The age of the object is 20750 years

Answer:

4,3,2

Explanation:

HOPE THIS HELPS

Answer:

Number of moles = 1.3 mol

Explanation:

Given data:

Number of moles of AlN = ?

Mass of AlN = 52.16 g

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of AlN = 40 g/mol

By putting values,

Number of moles = 52.16 g/ 40 g/mol

Number of moles = 1.3 mol

Answer:

It has hollow bones and jaws.

Explanation:

The cladogram shows that Species C has both hollow bones and Jaws. Species A has hollow bones while species B has Jaws. The cladograms shows that species C has both the characteristics.

Answer:

C. It has neither hollow bones nor jaws.

Explanation:

Answer:

In inorganic chemistry, a ternary compound is a compound containing three different elements. An example is sodium phosphate, Na3PO4. The sodium ion has a charge of 1+ and the phosphate ion has a charge of 3-. Therefore, three sodium ions are needed to balance the charge of one phosphate ion

Explanation:

Answer:

Not all ionic compound are composed of only monatomic ionic a ternary ionic compound is an ionic compound composed of three element in a typical ternary ionic compound there is still one type of cation and one type of anion involved the cation the anion or both is a polyatomic ion

Answer:

A: Both models represent atoms with the same atomic number.

Explanation:

The atomic number equals the number of protons.

The correct statement is that both models represent atoms with the same atomic number.

Isotopes are those molecules which are having the same atomic numbers but different atomic masses.

In the given model both they have the same number of electrons and protons it means they are not ions, but are having different atomic masses as number of neutrons are different.

Hence both models represent atoms with the same atomic number.

To know more about isotopes, visit the below link:

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Answer:

0.20

Explanation:

Step 1: Write the balanced equation

2 SO₂(g) + O₂(g) ⇄ 2 SO₃(g)

Step 2: Make an ICE chart

        2 SO₂(g) + O₂(g) ⇄ 2 SO₃(g)

I            3.9         3.2              0

C          -2x          -x             +2x

E        3.9-2x     3.2-x            2x

Step 3: Find the value of x

The partial pressure at equilbrium of SO₃ is 1.6 atm. Then,

2x = 1.6 atm

x = 0.80 atm

Step 4: Calculate the partial pressures at equilibrium

pSO₂ = 3.9-2(0.80) = 2.3 atm

pO₂ = 3.2-0.80 = 2.4 atm

pSO₃ = 1.6 atm

Step 5: Calculate the pressure equilibrium constant

Kp = pSO₃² / pSO₂² × pO₂

Kp = 1.6² / 2.3² × 2.4

Kp = 0.20

Answer:

See explanation

Explanation:

It is clear that certain substituted benzene compounds reacts faster than benzene during electrophillic substitution reactions. This owes to the activation of the benzene ring towards electrophillic substitution by resonance.

The -OCH3 group is ortho- para directing hence it directs an incoming electrophile (such as during bromination) to the ortho or para position as shown in the image attached. This occurs due to resonance (mesomeric) effect as shown in the image attached to this answer.

Image credit: pinterest

Answer:

When a radioactive atom undergoes a nuclear decay event (the significant decay modes are alpha decay, beta decay, electron capture, and spontaneous fission), the decaying nucleus undergoes a transformation in identity associated with the change in the number of protons in the nucleus