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Ronch [10]
3 years ago
13

Which of these observations are not explained by kinetic-molecular theory?

Chemistry
1 answer:
gayaneshka [121]3 years ago
5 0

Answer: At very low temperatures, gases expand less for a given pressure change than they do at high temperatures.

Explanation:

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What is the density of an object if its mass is 10 g and a volume of 2 mL?
Lilit [14]

Hi there! Let's solve this problem shall we!

⠀Volume = 10g

      Mass = 2 mL

In this specific problem, they are asking us to find the <u><em>density </em></u>of the object. So,<u><em> using the information given to us</em></u> (volume and mass), let's solve the problem!

Now, if you remember, D = M ÷ V

So, let's fill in the blanks!

D = Our unknown value

M = 2mL

V = 10g

Here is the filled out formula:

D = M ÷ V

D = 2mL ÷ 10g

D = 5 g/mL

*Make sure you put the units for your final solution!*

4 0
2 years ago
When hydrogen peroxide (H2O2) is used in rocket fuel, it produces water and oxygen (O2): Can someone help with parts B and C?
Paladinen [302]

Answer:

Explanation: A foam forms when bubbles of a gas are trapped in a liquid or solid. In this case oxygen is generated when hydrogen peroxide breaks down into oxygen and water on contact with catalase, an enzyme found in liver. Enzymes are special protein molecules that speed up chemical reactions.

7 0
3 years ago
For the following chemical reactions, determine the precipitate produced when the two reactants listed below are mixed together.
Free_Kalibri [48]
Ba(Oh)2(aq) + KCI(aq)>
8 0
3 years ago
What is the volume, in cubic centimeters, of a sample of cough syrup that has a mass of 50.0 g? The density of cough syrup is 0.
CaHeK987 [17]
I thinks it's 47.3 cubic centimeters
3 0
3 years ago
Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride: S (s) 3F 2(g) SF 6 (g) The maximum amount of
earnstyle [38]

Answer:

15.95 g

Explanation:

Calculation of the moles of sulfur as:-

Mass = 3.5 g

Molar mass of sulfur = 32.065 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{3.5\ g}{32.065\ g/mol}

Moles= 0.1092\ mol

From the reaction,

S+3F_2\rightarrow SF_6

1 mole of sulfur on reaction forms 1 mole of sulfur hexafluoride

0.1092 mole of sulfur on reaction forms 0.1092 mole of sulfur hexafluoride

Molar mass of sulfur hexafluoride = 146.06 g/mol

Mass= Moles*Molar mass = 0.1092*146.06 g = 15.95 g

<u>15.95 g is the maximum amount of SF_6 that can be produced from the reaction of 3.5 g of sulfur with of fluorine.</u>

7 0
3 years ago
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