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Irina18 [472]
3 years ago
11

What element has 4 valence electrons and 5 electron shells?

Chemistry
1 answer:
marta [7]3 years ago
8 0

Answer:  Tin (Sn)

Explanation:  The electron configuration for tin (Sn) is shown in the picture.  It's last electrons are:

5s^2 4d^10 5p^2

The valence electrons are in the 5th electron shell and include 2 each in the 5s and 5p orbitals.

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Scientific evidence is most likely to be consistent if it is based on data from
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Answer:

Random samples

Explanation:

It needs to be random so that there isn't bias that would skew the consistency

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4 years ago
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An object has a mass of 2800g and a volume of 3cm3. What is its density?<br>​
jeka57 [31]

Answer:

933.33 g/cm³

Explanation:

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Can someone Summarize how the suns gravity affects the planets please.
egoroff_w [7]

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A 2.75 M solution is diluted to 0.706 M, if the starting volume was 0.833L, what is the new volume?
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3.2447

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8 0
2 years ago
A gas with a volume of 4.0L at a pressure of 205 kPa is allowed to expand to a volume of 12000 mL. What is the pressure in atmos
Leni [432]

Answer: The pressure in atmospheres is 0.674 in the container if the temperature remains constant.

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

P_1V_1=P_2V_2  

where,

P_1 = initial pressure of gas  = 205 kPa

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V_1 = initial volume of gas  = 4.0 L

V_2 = final volume of gas = 12000 ml = 12 L    (1L=1000ml)  

205\times 4.0=P_2\times 12  

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Therefore, the pressure in atmospheres is 0.674 in the container if the temperature remains constant.

8 0
3 years ago
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