Combustion
Explanation:
This reaction is called a combustion reaction. It is very peculiar to reactions involving hydrocarbons.
In such reactants, oxygen gas is used as a reactant. It combines with fuel usually the hydrocarbon to produce heat and light energy.
For the combustion of most hydrocarbons, water and carbon dioxides are usually the product.
2CH₂ + 3O₂ → 2CO₂ + 2 H₂O
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<em>C = 0,75 mol/dm³</em>
<em>V = 500mL = 500cm³ = 0,5dm³</em>
C = n/V
n = 0,75×0,5dm³
<u>n = 0,375 moles</u>
<em>M NaCl: 23+35,5 = 58,5g</em>
1 mole ---------- 58,5g
0,375 ----------- X
X = 0,375×58,5
<u>X = 21,9375g NaCl</u>
:)
There are three valence electrons in an atom of Aluminum (Al).
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Al · or : Al : ·
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The answer is B.
Answer:
The kinetic energy of a molecule of carbon tetrachloride is 8.29 zJ.
Explanation:
The kinetic energy of a molecule of carbon tetrachloride is given by:
Where:
m: is the mass
v: is the speed = 255 m/s
To find the mass we need to find the molar mass for CCl₄, and use the Avogadro's number, knowing that in 1 mol of carbon tetrachloride we have 6.022x10²³ molecules:
A (C) = 12.011 g/mol
A (Cl) = 35.45 g/mol
The molar mass (M) of CCl₄ is:
Now, the mass of 1 molecule of CCl₄ is:
Finally, the kinetic energy of a molecule of carbon tetrachloride is:
Therefore, the kinetic energy of a molecule of carbon tetrachloride is 8.29 zeptoJoule.
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Answer:
The phosphorus minerals deposits that are available right now are not enough for the future. A large part of food production depends on phosphorus being produced. Phosphorus is commonly used as fertilizer and a lot of farmers are dependent on it.
