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vodomira [7]
3 years ago
7

What is the relationship between electron configuration and valence electrons?

Chemistry
1 answer:
Leya [2.2K]3 years ago
3 0

Answer:

The electrons that occupy the outermost shell of an atom are called valence electrons. Valence electrons are important because they determine how an atom will react. By writing an electron configuration, you'll be able to see how many electrons occupy the highest energy level .

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How is the density of a substance calculated?
murzikaleks [220]
Example:

sample density of gasoline, 20 g of weigth into 5 <span>mL

Answer:

D = m / V

D = 20 g / 5 mL

D = 4 g/mL</span>
3 0
3 years ago
What reaction will take place if h2o is added to a mixture of nanh2/nh3? draw the products of the reaction (without sodium ion)?
Maru [420]

When sodium amide i.e.NaNH_{2} reacts with water i.e. H_{2}O results in the formation of sodium hydroxide i.e. NaOH and ammonia NH_{3}.

The chemical reaction is given by:

NaNH_{2}+H_{2}O\rightarrow NH_{3}+NaOH

Now, when ammonia i.e.NH_{3} reacts with water results in the formation of ammonium hydroxide i.e. NH_{4}OH

The chemical reaction is given by:

NH_{3}+H_{2}O\rightarrow NH_4OH

Thus, the products of the above reactions are ammonia and ammonium hydroxide (without sodium ion).

The structures of the products are shown in figure (1): ammonium hydroxide and figure (2) ammonia.


8 0
3 years ago
Which process occurs at the anode in an electrochemical cell?
prisoha [69]
Oxidation occurs at the anode, so your answer is (2) loss of electrons
5 0
3 years ago
Help me please!!!( ꈍᴗꈍ)​
Dahasolnce [82]

Answer:

<h3>Which of the following increases with the increase in the temperature in case of a liquid?</h3><h2><em>Va</em><em>pour</em><em> </em><em> </em><em>Pressure</em><em> </em></h2>

Explanation:

When a closed container contains liquid, higher the temperature, higher the evaporation the evaporation will be.

So Vapour Pressure should be the correct answer.

6 0
2 years ago
Read 2 more answers
Radiation from structures that have a very high temperature is collected by
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I would radiation a robotics arm but for a heated surphace is Shiny surfaces are poor absorbers and emitters (but they are good reflectors of infrared radiation).

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