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Grace [21]
3 years ago
15

The force of attraction between one polar molecule and another polar molecule is​

Chemistry
1 answer:
Keith_Richards [23]3 years ago
7 0

Answer:

Dipole-dipole forces

Explanation:

A polar compound is that compound which contains atoms that have a difference in charges i.e electrostatic attraction occurs between its constituent atoms. Polar molecules are attracted to other polar molecules with opposite charges and her held together with the aid of certain forces

The attractive force between the negative part of a polar molecule (-) and the positive part of another polar molecule (+) is called DIPOLE-DIPOLE FORCES. This dipole-dipole force gets stronger with an increasing polarity of the molecules involved.

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The question:A new grill has a mass of 30.0 kg. You put 2.0 kg of charcoal in the grill. You burn all the charcoal and the grill
Maurinko [17]

Answer:- Molar mass of CO_2 .

Solution:- It is a stoichiometry problem. Mass of the grill is 30.0 kg and the mass after burning the grill is also 30.0 kg. It means all the charcol is burned and the gas is given off.

2.0 kg of charcol are converted to grams which is 2000 g. Since charcol is pure solid carbon, the grams are divided by the atomic mass of carbon which is 12.

The combustion equation of charcol is written as:

C(s)+O_2(g)\rightarrow CO_2(g)

From this balanced equation, there is 1:1 mol ratio between charcol and carbon dioxide. So, the moles of carbon dioxide gas formed are equivalent to the moles of charcol. To convert the moles of carbon dioxide to grams we multiply the moles by it's molar mass.

Carbon dioxide has one carbon and two oxygen atoms so it's molar mass = 12 + 2(16) = 12 + 32 = 44

So, 44 is the molar mass of carbon dioxide and above calculations clearly shows how and where we get this.

5 0
3 years ago
A graduated cylinder contains 20.0 mL of water. An irregularly shaped object is placed in
RideAnS [48]

Answer:

7.17 g/mL

Explanation:

Density = Mass / Volume

Given mass of object : 80.4g

We are not given the objects volume, however we are given that when put inside of a container with 20.0mL water, the level of the water rises to 31.2 mL.

31.2 - 20 = 11.2

The water level rose 11.2 mL when the object was placed inside of the cylinder containing the water therefore the object has a volume of 11.2mL

Now to find it's density

recall that density = mass / volume

mass = 80.4 and volume = 11.2mL

so density = 80.4/11.2 = 7.17 g/mL

8 0
2 years ago
Gasoline is that distillation fraction that has a boiling point range of<br>01.<br>​
faust18 [17]

Answer:

Straight-run gasoline. Fractional distillation of crude oil yields a product boiling between 30°C and about 200°C, known as straight-run gasoline (or sometimes as “naphtha”).

5 0
4 years ago
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You have decided to do a science fair project involving plants. Which of the following represents a well-stated hypothesis?
marysya [2.9K]
The correct answer should be c
8 0
4 years ago
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For a reaction to occur, energy must be _____ to break chemical bonds.
lapo4ka [179]

Answer: The correct answer is absorbed.

Explanation:

Bond formation is a type of exothermic process. In these reactions when two atoms come close to each other, energy is released in this process.

On the other hand, in the breaking of bond, energy is required because the atoms are to be separated from each other. This is a type of endothermic process. So, the energy must be absorbed.

Hence, the correct answer is absorbed.

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3 years ago
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