Draw the structure of 2-bromo, 3-chloro-4,4-dimethyl

Answer:

you know it is what it is☠

Explanation:

Nonmetallic elements form ions by valence electrons to complete their outer shell. The valence electrons an element has in its outer shell, the easier it is to complete. The electron shells an element has, the easier it is to fill its outermost shell.

Question:

How many moles of H2O are formed from the combustion of 5.0 mol CH4

Answer:

For any balanced chemical reaction, whole numbers (coefficients) are used to show the quantities (generally in moles ) of both the reactants and products. For example, when oxygen and hydrogen react to produce water, one mole of oxygen reacts with two moles of hydrogen to produce two moles of water.

Answer:

it is elimination reaction

Explanation:

Because substitution takes place not elimination

Answer:

negative charge

Explanation:

An anion has more electrons than protons, consequently giving it a net negative charge.

hope this helps, pls mark brainliest :D

Answer:

Xe 4f14 5d3 6s2

Explanation:

Answer:

The correct answer is - They gently shake the pan causing the marbles to move back and forth.

Explanation:

When water is heated the molecules present in its liquid state start to move and vibrate faster and allows the water to expand and increase in volume. If the heat is continuously applied to the water its molecules move even faster and escape in the form of molecules of vapor to the atmosphere.

To exhibit this phenomenon by the marble and pan, Richard and Brooke should gently shake the pan causing the marbles to move back and forth which shows faster vibration and movement of molecules.

Answer:

I believe it's ... North Africa and the Italian Peninsula

Answer:

Shear

Tension

Compression

Explanation:

The 3 stress forces are;

-shear

-tension

-compression

1) Shear is the stress force that pushes back a mass of rock in two opposite directions which in turn will produce strike - slip faults.

2) Tension is the stress force that pulls on the crust thereby stretching in a manner that it becomes thinner at its middle which in turn will produce normal faults.

3) Compression is the stress force that makes rocks squeeze until they fold or break and this will in turn produce reverse faults.

Answer:

the decrease is the answer to the question

Answer:

Explanation:Due to the mental pressure,

                       Due to peer pressure,

                      Lack of love and affection from the family members.

                      Influence from the T.V advertisement.

Answer:

D. It is limited to situations that involve aqueous solutions or specific compounds.

Explanation:

It is the only interpretation that involves specifically aqueous solutions.

The statement that describe Arrhneius interpretation of acids and bases is It is limited to situations that involve aqueous solutions or specific compounds.

Svante Arrhenius a swedish scientist formulated a theory about acid and bases in 1884 based on theory of ionization. Arrhenius stated that acids contains hydrogen ions and when its dissociates in water will give out H+ ions and base is an hydroxide substances that will produce OH− ions on when it dissociates in water.

Therefore, The statement that describe Arrhneius interpretation of acids and bases is It is limited to situations that involve aqueous solutions or specific compounds.

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answer: c

because if you really picture it and look at each of  them carefully it is c

Answer: W

Explanation:

The cell in liquid W will look the smallest out of the four because of Osmosis.

Osmosis is a process by which water molecules move from an area of relatively higher concentration of water to an area with a relatively lower concentration through a selectively permeable membrane(cell membrane).

With W being saltier than the cell, water molecules will move from the cell to liquid W to balance the concentrations inside and outside the cell which will lead to the cell in W being smaller.

Answer:

nector

Explanation:

Answer:

try a calulator online just go to g.oogle and type in gpa calculator

Answer:

It also contains other gases, including carbon dioxide and helium, and various pollutants (both gases and solids).

Answer:

true

Explanation:

Answer:

false

Explanation:

i took the test and got it right

Answer:

O = 57.14%

C = 42.86%

Explanation:

First of all we will calculate the molar mass of CO.

C = 12 g/mol

O = 16 g/mol

CO = 12 g/mol + 16 g/mol

CO = 28 g/mol

Percent composition:

C = (12 g/mol  /28 g/mol ) × 100

C = 42.86%

O = (16 g/mol  /28 g/mol ) × 100

O = 57.14%

Answer:

it should be 42.86% carbon and 57.14% oxygen

C = 12

O = 16

CO = 12 + 16

CO = 28

C = (12 /28 ) × 100

C = 42.86%

O = (16  /28 ) × 100

O = 57.14%

Energy to freeze : 10020 J

Given

mass of H₂O = 30 g

Required

Energy to freeze

Solution

Reaction

H₂O(l) ⇒  H₂O(s)

The heat to change the phase can be formulated :

Q = mLf (melting/freezing)

Lf = latent heat of fusion (for water/ice = 334 J/g)

Then heat to freeze :

[tex]\tt Q= 30\times 334=10020~J[/tex]

Answer:

C₂H₆

Explanation:

Here,

The Empirical Formula is CH₃

Now, 2 × CH₃ = C₂H₆

Thus, The Molecular Formula of CH₃ is C₂H₆

-TheUnknownScientist

Answer:

[tex]\boxed{\pink{\sf Option \ (a) \ is \ Correct .}}[/tex]

Explanation:

Given that , A can of cola contains approximately 240 calories. And we consume two cans of cola each day. So , calories consumed in one day

[tex] = 2 \times 240 calories \\\\= 480 calories [/tex]

In a week there are seven days. So calories consumed in a week

[tex]= 7 \times 480 calories \\\\= 3360 calories [/tex]

Which is approximately equal to 3,400 calories.

Answer:

The particles in the substance become less active

Answer:

V = 20.1 L

Explanation:

Given data:

Volume of flask = ?

Number of moles of nitrogen gas = 0.730 mol

Pressure = 698 mmHg (698/760 = 0.92 atm)

Temperature = 35.4°C

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will convert the temperature.

35.4+273 = 308.4 K

by putting values,

0.92 atm× V = 0.730 mol ×0.0821 atm.L/ mol.K × 308.4 K

V = 18.48 atm.L / 0.92 atm

V = 20.1 L

The question is incomplete, the complete question is;

In this stoichiometry problem, determine the percentage yield:

Excess aluminum metal reacts with aqueous nickel(II) sulfate to produce aqueous aluminum sulfate and nickel as a precipitate. In this reaction 108 g of aluminum were combined with 464 g of nickel(II) sulfate to produce 274 g of aluminum sulfate.

Answer:

80%

Explanation:

The reaction equation is;

2Al(s) + 3NiSO4(aq) --------> Al2(SO4)3 + 3Ni(s)

Since Al is in excess then NiSO4 is the limiting reactant.

Number of moles in 464 g of NiSO4 = mass/ molar mass

Molar mass of NiSO4 = 155 g/mol

Number of moles = 464g/155g/mol = 2.99 moles

Number of moles of Al2(SO4)3 = mass/molar mass

molar mass = 342 g/mol

Number of moles = 274g/342g/mol = 0.8 moles

From the reaction equation;

3 moles of NiSO4 yields 1 mole of Al2(SO4)3

2.99 moles of NiSO4 yields 2.99 * 1/3 = 1 mole of Al2(SO4)3

% yield = actual yield/ theoretical yield * 100/1

actual yield =  0.8 moles of Al2(SO4)3

Theoretical yield = 1 mole of Al2(SO4)3

% yield = 0.8/1 * 100 = 80%

In this exercise we have to use the knowledge of reaction to calculate the required percentage, in this way we find that:

[tex]80\%[/tex]

The reaction equation is;

[tex]2Al(s) + 3NiSO_4(aq) \rightarrow Al_2(SO_4)_3 + 3Ni(s)[/tex]

Since Al is in excess then NiSO4 is the limiting reactant. Now knowing that the data informed is:

From the reaction equation;

[tex]\% yield = actual\ yield/ theoretical\ yield * 100/1\\\% yield = 0.8/1 * 100 = 80%[/tex]

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Answer:

A net ionic equation shows only the chemical species that are involved in a reaction, while a complete ionic equation also includes the spectator ions.

Brainlist pls!

Answer:

D. A reaction in which an atom has gained 1 or more electrons.

Explanation:

The oxidation reduction reactions are called redox reaction. These reactions are take place by gaining or losing the electrons and oxidation state of elements are changed.

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

Consider the following reactions.

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

The oxidation state of copper is changed from +2 to +1 so copper get reduced by gaining the one more electron

Answer:

6.4924249 × 10^-23 g you need to solve it

The geologic process that directly forms beaches on the shores of the bay should be considered as the sediment deposition.

The Deposition refer to the laying down of sediment that should be carried by wind, where the water should be flowing down or there is the sea or ice. Sediment could be transported just like the pebbles, sand ,and mud, or as salts mix in the water.

Therefore, The geologic process that directly forms beaches on the shores of the bay should be considered as the sediment deposition.

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