If you wanted to change the polarity of hydrogen bromide (HBr) by substituting the bromine with a different atom. Which atom would increase the polarity of the molecule?

Answers

Answer 1
Answer:

To increase the polarity of HBr, the bromine atom can be replaced with a hydrogen atom.

A polar molecule is one in which a dipole moment exists. There is a positive end and a negative end in a polar molecule. Conventionally, the direction of the dipole is from the positive end of the molecule towards the negative end of the molecule.

If we want to increase the polarity of the molecule then we must substitute the bromine atom with a more electronegative atom. In this case, chlorine is  the best option.

Missing parts;

If you wanted to change the polarity of hydrogen bromide (HBr) by substitutingthe bromine by a different atom. Which atom would increase the polarity of the  molecule?

A. chlorine (CI)

B. iodine (1)

C. sulfur (S)

D. hydrogen (H)

Learn more: brainly.com/question/24775418

Answer 2
Answer:

Answer:

This question is incomplete as it lacks options, the options are:

A. chlorine (CI)

B. iodine (1)

C. sulfur (S)

D. hydrogen (H)

The answer is A. Chlorine

Explanation:

Polarity of a substance in chemistry is a function of electric charges in the atoms of the molecules involved. Polarity, however, can be increased or decreased in molecules depending on the charges of the atoms that form them.

Since polarity increases when an atom in the molecule has a high ability to pull electrons toward itself i.e. electronegativity, one atom that can be substituted for Bromine in the hydrogen bromide (HBr) molecule in order to increase its polarity is CHLORINE. This is because Chlorine (Cl) is more electronegative than Bromine atom, hence, will pull more electrons from hydrogen to make the HCl molecule more polar than HBr.


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What is the hydrogen concentration of a pH of 6.95, 7.25 and 8.1?

Answers

Explanation:

pH is use calculate the acidic strength of a substance ,

The value of pH is calculated as , negative log of the concentration of Hydrogen ions .

Therefore ,

pH = - log [ H ⁺]

rearranging the above equation , to find the hydrogen ion concentration .  log [ H ⁺] = pH

log [ H ⁺] = - pH

[ H ⁺] =  antilog ( - pH )

Hence , from the question , the hydrogen ions can be calculated by using the above equation ,

( 1 )

pH = 6.95

Since ,

[ H ⁺] =  antilog ( - pH )

[ H ⁺] = antilog ( - 6.95 )

[ H ⁺] = 1.12 * 10 ⁻⁷  

( 2 )

pH = 7.25

Since ,

[ H ⁺] =  antilog ( - pH )

[ H ⁺] = antilog ( - 7.25 )

[ H ⁺] = 5.62 * 10 ⁻⁸

( 3 )

pH = 8.1

Since ,

[ H ⁺] =  antilog ( - pH )

[ H ⁺] = antilog ( - 8.1 )

[ H ⁺] = 7.94 * 10 ⁻⁹  

What is the concentration of a solution that has 15.0 g NaCl dissolved to a total of 750 ml?

Answers

Answer: The concentration of solution is 0.342 M

Explanation:

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Mass of solute}* 1000}{\text{Molar mass of solute}* \text{Volume of solution (in mL)}}

We are given:

Mass of solute (Sodium chloride) = 15 g

Molar mass of sodium chloride = 58.5 g/mol

Volume of solution = 750 mL

Putting values in above equation, we get:

\text{Molarity of solution}=(15g* 1000)/(58.5g/mol* 750mL)\n\n\text{Molarity of solution}=0.342M

Hence, the concentration of solution is 0.342 M

PSYCHOLOGYWhich of the following statements is not correct concerning the relationship between attention and perception? Focusing one’s attention on something in the environment is necessary in order to perceive it. Individuals have the ability to focus attention on a specific stimulus in the midst of surrounding activity. Whether or not people perceive information as meaningful influences their attention to it. Individuals can easily detect changes in the environment when they are absorbed in a task.

Answers

The statements is not correct concerning the relationship between attention and perception is that individuals can easily detect changes in the environment when they are absorbed in a task.

What is psychology?

Psychology is defined as the scientific discipline that studies mental state and processes and behavior in human and other animals.

It can also be defined as the scientific study of mind and behavior.

Environment is defined as the sum total of all the living and non living elements and there effect that influences human life.  

Thus, the statements is not correct concerning the relationship between attention and perception is that individuals can easily detect changes in the environment when they are absorbed in a task.

To learn more about psychology, refer to the link below:

brainly.com/question/10980588?

#SPJ2

Answer:

The answer is Individuals can easily detect changes in the environment when they are absorbed in a task.

Explanation:

How can volcanic eruptions cause the average temperature on the planet to drop The ash in the atmosphere blocks the sunlight

Volcanic ash insulates the earth

Volcanic ash is hot

Volcanic eruptions cause the average temperature to increase

Answers

I just took the test it is A hope this helps :)

What is the polarity of a Na-Br bond?nonpolar covalent

definitely polar covalent

likely ionic

slightly polar covalent

slightly ionic

Answers

Answer:

likely ionic

Explanation:

The bond between , Sodium and Bromine , in sodium bromide salt , is ionic in nature .

Since ,

The difference in the electronegativity of the two atom is high .

According to Pauling scale ,

The  Electronegativity of Bromine = 2.96

The  Electronegativity of sodium = 0.93

Hence ,

The Difference in electronegativity = ( 2.96 - 0.93 ) = 2.03

Hence ,

The electronegativity difference value is more than 1.8 ,

Therefore,

The bond is ionic in nature .

What are 4 molecules made of the same substance

Answers

Answer:

H2O (water)

N2 (nitrogen)

O3 (ozone)

CaO (calcium oxide)

Explanation:

HOPE IT HELPS