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Arte-miy333 [17]
3 years ago
14

The most stable group of elements on the periodic table is the?

Chemistry
2 answers:
Contact [7]3 years ago
6 0
B) Noble gases
Most stable because they have the maximum number of valence electrons their outer shell can hold
Stels [109]3 years ago
5 0

Answer:

Noble Gases B

Explanation:

The noble gases are the chemical elements in group 18 of the periodic table. They are the most stable due to having the maximum number of valence electrons their outer shell can hold. Therefore, they rarely react with other elements since they are already stable.

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Li₃N + 3 NH₄NO₃ 3 LiNO₃ + (NH₄)₃N
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Double reaction is the answer
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Foods that contain ___ should be prepared last.<br> Allergens<br> Citrus<br> Nuts<br> Apples
vladimir1956 [14]
Food that contains nuts should be prepared last
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4 years ago
How much heat is absorbed during production of 147 g of NO by the combination of nitrogen and oxygen?
marin [14]

Answer:

\large \boxed{\text{105 kcal}}

Explanation:

MM:                        30.01

            N₂ + O₂ ⟶ 2NO; ΔH = +43 kcal/mol

m/g:                         147

Treat the heat as if it were a reactant in the reaction. Then you can write

N₂ + O₂ + 43 kcal ⟶ 2NO

The conversion factor is then 43 kcal/2 mol NO.

1. Moles of NO

\text{Moles of NO} = \text{147 g NO} \times \dfrac{\text{1 mol NO}}{\text{30.01 g NO}} = \text{4.898 mol NO}

2. Amount of heat

\text{Heat} = \text{4.898 mol NO } \times \dfrac{\text{43 kcal}}{\text{2 mol NO}} = \text{105 kcal}\\\\\text{The reaction absorbs $\large \boxed{\textbf{105 kcal}}$}

7 0
3 years ago
Does ccl4 has resonance structures
krek1111 [17]

Answer:

No, CCl₄ is 4 covalent C-Cl single bonds with a Tetrahedral geometry.

Explanation:l

For resonance structures to exist the molecule must have alternating single-double bonds. H₂C = CH - CH₃ <=> H₃C - CH = CH₂ resents a simple compound with a resonance structure system. This means that the π-bond electrons are distributed across all carbons in the molecular backbone. I would recommend internet searching for Danial Weeks 'Pushing Electrons' for a comprehensive review of molecular resonance structures. It is a brief, but easy to follow treatment of simple to complex structures containing resonance systems.

Hope this helps. Doc :-)

8 0
2 years ago
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Why did the balloon get larger?
Shkiper50 [21]

Answer:

because of the heat expanding the balloon

7 0
2 years ago
Read 2 more answers
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