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3 years ago

What happens when light passes from air into water?

Chemistry

1 answer:

vesna_86 [32]3 years ago

3 0

The answer is C . when the light slows down

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How does the electron configuration of elements within the same group compare? (A.) They all have their valence electrons in the

lesya [120]

Answer:

B.They all have their valence electrons in the same type of subshell

Explanation:

The electron configurations of elements in the same group (column) of the periodic table have them in the same type of subshell.
But the subshells may be of different shells. Thus , the energies of them need not be the same.
For example , The Alkalai Metals are found in the first column of the periodic table Group IA. This set of elements all have valence electrons in only the ' $s$ ' orbital and because they are in the first column they all have $s^{1}$ configuration. i.e,

H $1s^1$
Li $1s^2 2s^1$
Na $1s^2 2s^2 2p^6 3s^1$
K $1s^2 2s^2 2p^6 3s^2 3p^64s^1$

5 0

3 years ago

2. Would you measure a pencil in meters? A hallway in millimeters? Discuss

Eduardwww [97]

Answer:

Measuring a pencil in meters would be very difficult, as a single meter is much longer than one pencil. Also, measuring a hallway in millimeters would be very difficult considering how small millimeters are in comparison to a hallway. However, if you switch these two then they would work very well.

5 0

3 years ago

Fog is an example of a

Crank

Answer:

colloidal system liquid dispersed in gas.

6 0

3 years ago

6.75 L of carbon dioxide gas are stored at a pressure of 175 atm. If the temperature and number of gas particles do not change,

I am Lyosha [343]

Answer:

4.24 L

Explanation:

6.75 L - 175 atm

x. - 110 atm

175atm x=742.5L /atm

175atm 175atm

therefore x=4.24 L

3 0

3 years ago

How do you know that oxygen was the gas removed from the volume of air and not another

klio [65]

One way of knowing that oxygen was the gas removed from the volume of air and not another is to know what the volume of air is made of first. When the composition of the volume of air is already identified, then next would be the process of separating these elements from each other and as to which is to be separated first. This would usually lead to knowing their masses, their boiling and freezing points, the temperatures at which they condense, and so on. This is to identify their differences to each other and use those differences to successfully separate those elements to each other.

8 0

3 years ago