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DedPeter [7]
3 years ago
13

Which sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory? higher t

emperature Right arrow more kinetic energy Right arrow more space between particles Right arrow higher volume higher temperature Right arrow less kinetic energy Right arrow less space between particles Right arrow higher volume higher temperature Right arrow more kinetic energy Right arrow less space between particles Right arrow lower volume higher temperature Right arrow less kinetic energy Right arrow more space between particles Right arrow lower volume
Chemistry
1 answer:
Aleksandr-060686 [28]3 years ago
3 0

Answer:

higher temperature → more kinetic energy → more space between particles higher volume

Explanation:

Kinetic Molecular Theory states that gas particles exhibit perfectly elastic collisions and remain in constant motion. Absolute temperature  is directly proportional to the average kinetic energy of gas particles.

The following sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory:

higher temperature → more kinetic energy → more space between particles higher volume

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Potassium fluoride (KF, a salt, has a molecular weight of 58.10 grams. How many grams would be needed to make 1.0 liter of 5.0 m
AlladinOne [14]
The concentration of the solution is 5.0 molar, which is 5.0 mole/L.  So in the 1.0 L of 5.0 molar KF salt solution, the moles of KF is 5.0molar*1.0L=5.0 mole. The molecular weight of KF is given in the question as 58.10 gram/mole, so the grams of KF is 58.10 gram/mole * 5.0 mole = 290.5 gram.
3 0
3 years ago
The density of a pure liquid at 25 degrees Celsius was calculated by determining the mass and volume of a sample of the liquid.
adelina 88 [10]

Answer

The density of the liquid is 0.82 g/mL.

Explanation:

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

Mass of empty flask = 18.990 g

Mass of flask + liquid = 39.439 g

Volume of liquid = 25 mL

Density of liquid =..?

Next, we shall determine the mass of the liquid. This can be obtained as follow:

Mass of empty flask = 18.990 g

Mass of flask + liquid = 39.439 g

Mass of liquid =.?

Mass of liquid = (Mass of flask + liquid) – (Mass of empty flask)

Mass of liquid = 39.439 – 18.990

Mass of liquid = 20.503 g

Finally, we shall determine the density of the liquid as follow:

Mass of liquid = 20.503 g

Volume of liquid = 25 mL

Density of liquid =..?

Density = mass / volume

Density of liquid = 20.503 / 25

Density of liquid = 0.82 g/mL

8 0
3 years ago
Stomach acid is predominately hydrochloric acid. Write the balanced chemical equation for the neutralization reaction between HC
bogdanovich [222]

Answer:

HCl + Mg(OH2)  ---> MgCl2 + H2O

Explanation:

hydrochloric acid + magnesium hydroxides  ==> magnesium Chloride (a salt) + Water

HCl + Mg(OH2)  ---> MgCl2 + H2O

8 0
3 years ago
Share what you have learned about first aid to your family......<br><br>please help me with this.​
Anon25 [30]

Answer:

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=> First Aid enables you to assist persons who become injured in the event of an accident or emergency situation until help arrives.

\huge\blue{ \mid{ \underline{ \overline{ \tt  Situations :- }} \mid}}

=> If an accident happens in the workplace, in your home or in a public space, you can use the help of a first aid kit.

=> In situations such as when someone ingests a harmful substance, suffers from a heart attack, a seizure or stroke, is involved in a motor vehicle accident or is caught in a natural disaster, a person trained and knowledgeable in even the very basics of First Aid can be of extreme importance in assisting the injured person(s) until emergency responders arrive.

7 0
2 years ago
Calculate the mass of sucrose necessary to make a 5% by mass sucrose solution if the solution contains 50.0 ml of distilled wate
Lelechka [254]

Answer:

2.6 g

Explanation:

Percent concentration = 5%

Volume of water = 50ml

Since 1ml of water = 1g of water

Mass of water= 50g

Let the mass of sucrose be x

Mass% = mass of solute/mass of solute + mass of solvent × 100

5= x/x+ 50 ×100

5/100 = x/x + 50

0.05 = x/x + 50

0.05(x + 50) = x

0.05x + 2.5 = x

2.5 = x - 0.05x

2.5 = 0.95x

x= 2.5/0.95

x=2.6 g

5 0
3 years ago
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