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Setler79 [48]
3 years ago
10

In order to prove that the Law of Conservation Mass is obeyed, what are the coefficients

Chemistry
1 answer:
Brums [2.3K]3 years ago
5 0

Answer: C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical equation for combustion of propane will be :

C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

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14. Which of the following is produced when propane (C3H8) is combusted completely? (2 points)
Ymorist [56]

The following is produced when propane (C₃H₈) is combusted completely : H₂O

<h3>Further explanation  </h3>

Complete combustion of Hydrocarbons with Oxygen will be obtained by CO₂ and H₂O compounds.  

If O₂ is insufficient there will be incomplete combustion produced by CO and H and O  

Hydrocarbon combustion reactions (especially alkanes)  \large {\boxed {\bold {C_nH _ (_2_n _ + _ 2_) + \frac {3n + 1} {2} O_2 \Rightarrow nCO_2 + (n + 1) H_2O}}}

For combustion of propane C₃H₈ (n = 3) ⇒ completely(excess O₂) :

C₃H₈+5O₂⇒3CO₂+4H₂O

The products of combustion : CO₂ and H₂O

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2 years ago
What is the source of the energy that causes electrons to be emitted from the surface?.
Pie

Answer:

sunlight

Explanation:

it is the sunlight

8 0
2 years ago
In the reaction 2 c o2 → 2 co, how many moles of carbon are needed to produce 66.0 g of carbon monoxide
weeeeeb [17]

The solution would be like this for this specific problem:

<span>Given:

</span>66.0 g of carbon monoxide

reaction 2 C + O2 → 2 CO

 

<span>mol e= mass / molar mass <span>
<span>mole of 2CO = 66.0g / (12.011  15.999)g / mol </span>
mole of 2CO = 2.36 (CO and C has a 1:1 mole ratio) 

mole of 2CO = 2.36 -> mole of 1 CO = 2.36 / 2 = 1.18 

<span>We got 2 moles of C, thus 1.18 x 2 = 2.36

So, we 2.36 </span>moles of carbon are needed to produce 66.0 g of carbon monoxide in the </span>reaction 2 C + O2 → 2 CO.</span>   <span>To add, Carbon nonmetallic and tetravalent, thus, making four electrons available to form covalent chemical bonds. </span>
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What effect does the pH of water have on radish seed germination?
natka813 [3]
It has a high percentage of germination in pH’s 13-14 this shows that radish seeds can germinate very well in almost all pH levels
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2 years ago
Select true or false: the definition of free radicals is molecular fragments having one or more unpaired electrons.
Nataliya [291]
The answer is false:)
3 0
3 years ago
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