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bija089 [108]
3 years ago
7

How are elements that are gases at room temperature designated in the periodic table

Chemistry
1 answer:
Ira Lisetskai [31]3 years ago
4 0

5= Elemental hydrogen, nitrogen, oxygen, fluorine and chlorine are all gases at room temperature,

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Question 4(Multiple Choice Worth 3 points)
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Answer:

Thermal conductivity :)

Explanation:

Thermal conductivity is the ability of a material to conduct heat with a given temperature difference.

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How many electrons are in the 2p sub-energy level of a neutral nitrogen atom?
Evgen [1.6K]

Answer:

<h3>C. 3</h3>

Explanation:

there are three electrons in a 2p sub-energy level of s neutral nitrogen atom.

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Type in the correct values to correctly represent the valence electron configuration of magnesium: AsB
dezoksy [38]

Magnesium (Mg) has atomic number 12 with electronic configuration :

1s^{2},2s^{2},2p^{6},3s^{2}

The valence shell of Mg is 3s which has 2 electrons as shown in above electronic configuration.

Therefore, A = 3  and B =2

8 0
3 years ago
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Which of the following general reactions appropriately models a combination reaction? View Available Hint(s) Which of the follow
Assoli18 [71]

Answer:

A + B → C

Explanation:

Hello,

In this case, when talk about chemical reaction, in general terms they could be combination, decomposition, single displacement and double displacement, thus, combination chemical reactions are those reactions that have two reactants which combine to yield one single product.

In such a way, the reaction accomplishing the aforesaid description turns out:

A + B → C

Since A and B are the reactants and C the product resulting from the combination.

Best regards.

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3 years ago
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