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Westkost [7]
3 years ago
6

What is water condensing on a cold glass an example of? and explain

Chemistry
1 answer:
Nana76 [90]3 years ago
4 0
The answer is
b)state of matter 

because water is changing from a gas to liquid
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Molar mass of c(no3)2
slava [35]

I believe that it is 187.56 g/mol

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3 years ago
If mass =180kg and volume =90m3, what is the density
DaniilM [7]
To find the density you must divide the mass by the density.
180kg ÷ 90m³ = 2kg/m<span>³
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3 years ago
Write Huckel's rule below and determine how many electrons are required to make an aromatic ring with n = 0, 1, and 2.
lisov135 [29]

<u>Answer:</u> The number of electrons for n = 0, 1 and 2 are 2, 6 and 10 respectively.

<u>Explanation:</u>

Huckel's rule is used to determine the aromaticity in a compound. The number of delocalized \pi- electrons are calculated by using the equation:

\text{Number of delocalized }\pi-\text{ electrons}=4n+2

where,

n = 0 or any whole number

  • Calculating the value of electrons for n = 0

Putting values in above equation, we get:

\text{Number of delocalized }\pi-\text{ electrons}=4(0)+2=2

  • Calculating the value of electrons for n = 1

Putting values in above equation, we get:

\text{Number of delocalized }\pi-\text{ electrons}=4(1)+2=6

  • Calculating the value of electrons for n = 2

Putting values in above equation, we get:

\text{Number of delocalized }\pi-\text{ electrons}=4(2)+2=10

Hence, the number of electrons for n = 0, 1 and 2 are 2, 6 and 10 respectively.

4 0
3 years ago
Melting water is an example of a physical change because (3 points)
ladessa [460]
The water changes state.
3 0
3 years ago
Which is a common unbalanced force acting on objects in motion?
Semmy [17]

Answer:

a. friction

Explanation:

What is a common unbalanced force acting in motion? Common forces that are often unbalanced include the force of gravity and applied forces. When these forces are unbalanced, objects accelerate, change their position and find new configurations for which all forces are again balanced.

Friction is a kind of force.

5 0
2 years ago
Read 2 more answers
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