Answer:
Answer A
Explanation:
2 H2 + O2 = 2 H2O
knowing the mole weights of these elements shows O2 is the limiting reactant in this situation.
4 g oxygen is 4 /31.998 = .125 mole O2
We should get two times these moles of water = .250 moles
weight = .250 (1.008 * 2 + 15.999) = 4.50 gm H20 (theoretical)
....but we only got 4 gm
4/4.50 = 88.8%
Answer:
They both have Four electron shells
Explanation:
- The periodic table arranges elements into columns called groups and rows called periods.
- Elements in the same group share similar chemical and physical properties.
- For example, elements in group 1 called alkali metals have similar properties. They include sodium, lithium, and potassium among others.
- On the other hand elements in the same period have the same number of energy levels or electron shells. For example, elements in period 4 have four energy levels.
I think it would be a law
Answer:
CH3Cl + Cl2 -> CH2ClCH2Cl + HCl
Explanation:
Chlorination is an addition reaction that involves addition of Chlorine to a chemical compound. Methane undergo addition reaction with chlorine to produce chloromethane, which undergo further further chlorination to produce dichloromethane.
For the chlorination of methane, one of the hydrogen atoms of methane is replaced by a chlorine atom of the chlorine gas (molecule)
CH4 + Cl2 -> CH3Cl + HCl
methane chlorine chloromethane Hydrochloric acid
Using their structure:
H H
I I
H - C - H + Cl - Cl -> H - C - Cl + HCl
I I
H H
methane chloromethane
In further chlorination of chloromethane, one of the hydrogen atom of chloromethane is replaced by the chlorine atom in the chlorine gas (molecule)
Chlorination of Chloromethane to dichloromethane is represented below:
CH3Cl + Cl2 -> CH2ClCH2Cl + HCl
Chloromethane Chlorine dichloromethane Hydrochloric acid
Using their structure:
Cl Cl
I I
H - C - H + Cl - Cl -> H - C - Cl + HCl
I I
H H
Chloromethane chlorine dichloromethane
Organic compound Inorganic compound
From the chemical equation above, an organic compound (Chloromethane) reacts with an inorganic compound (Chlorine) .
Relative energies are in the order:
s < p < d < f
And the shape of these orbitals are
s - spherical
p - dumbbell
d - double dumbbell
f - double double dumbbell