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musickatia [10]
3 years ago
10

What is the difference in energy between an electron in 1s and an electron in 4s.

Chemistry
1 answer:
Andre45 [30]3 years ago
5 0

Answer:

Explanation:

An electron in 4s is farther away from nucleus and it has higher energy when compared to electron from 1s.

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Calculate the volume of liquid in the round flask sketched below. give your answer in liters, and round to the nearest 0.01l .
vovangra [49]

Hey There!

Assuming the part of the round flask containing liquid to be perfect sphere, we can calculate it's volume.


Given diameter of sphere = 24 cm  


Therefore radius of the sphere, r= 24/2= 12 cm


Volume of the sphere of diameter 24 cm = (4/3)*pi*r³ = 7,238.23 cm3


Conversion of cm³ to L


1 L= 1 dm³


1 dm = 10 cm


Therefore 1L= 1 dm³ = 1000 cm³

So the volume of liquid in the round flask = 7.24 L( round of to nearest 0.01 L)

4 0
3 years ago
Silk is obtained from​
Nostrana [21]

Answer:

Silk worm

Explanation:

Silk worms are boiled and the silk around them is removed

7 0
4 years ago
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A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for severa
Ierofanga [76]

Answer: Water inside the seed coat creating a pushing force, breaking the seed coat.

Explanation:

Seed germination can be defined as the process by which a new plant emerge out from a seed. The radicle is the first emerging part from a seed and it develops into a root and the plumule is the second emerging part and it develops into a shoot. The light, water, adequate temperature, and soil are the factors that are necessary for seed germination.

According to a given situation, the popcorn kernel will receive the moisture necessary for the germination process, the water will imbibe into the seed coat creating pressure inside the seed and which will cause the seed coat to break and the new plant parts or seedling will emerge out of the seed coat.

8 0
3 years ago
Please help me with this question please!!!
Deffense [45]

Answer:

A

Explanation:

I looked up aromatic hydrocarbon and this one looks like a replica of benzene

3 0
3 years ago
Which of the following statements about Bohr's model of the atom is true? Bohr's model explains the chemical behavior of all ato
dsp73

I believe the answer is "Bohr's model explains the chemical behavior of all atoms."

3 0
3 years ago
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