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attashe74 [19]
3 years ago
5

Atoms tendency is to become stable what does this mean

Chemistry
2 answers:
andrezito [222]3 years ago
5 0
An atom would be stable if it had 8 valence electrons. This means that they would be considered happy and have a full octet, making them not reactive. 
andre [41]3 years ago
4 0
This means they have 8 valence electrons , they are stable and need no more
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List the number of each type of atom on the left side of the equation 2C10H22(l)+31O2(g)→20CO2(g)+22H2O(g)
Leokris [45]

<u>Answer:</u>

<em>20, 44, 62 </em>

<em></em>

<u>Explanation:</u>

To find the number of atoms of each element, we multiply coefficient and subscript  

For example 5 Ca_1 Cl_2 contains  

5 × 1 = 5 ,Ca atoms and

5 × 2 = 10, Cl atoms  

If there is a bracket in the chemical formula  

For example 3Ca_3 (P_1 O_4 )_2

we multiply coefficient × subscript × number outside the bracket to find the number of atoms  

(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )

So

3 × 3 = 9 , Ca atoms  

3 × 1 × 2 = 6, P atoms  

3 × 4 × 2 = 24, O atoms are present.

So let us find the number of atoms of each element on the left  side of the equation  

2C_{10} H_{22} (l)+31O_2 (g)\Rightarrow 20CO_2 (g)+22H_2 O(g)

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Number of H atoms = 2 × 22 = 44

Number of O atoms = 31 × 2 = 62

20, 44, 62  are the Answers.

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3 years ago
Is a computer screen energy transfer or transformation?
yarga [219]
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13. What is the symbol for Enthalpy change?
OverLord2011 [107]

Answer:

Explanation:

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when heat is absorbed enthalpy change is positive . Reaction is endothermic.

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The atom in a sample of an element must contain nuclei with the same number of?
slava [35]
Hey there! 

Answer: Protons 

The atom in a sample of an element must contain nuclei with the same number of protons. If the protons change in number, then the element will modify as well. 

Thank you!
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3 years ago
What is the name of the compound PbS2 • 4H2O?
Ainat [17]
Should be :

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