Answer:
- The molecules stick together and form a solid making ice
- By removing heat
Equilibrium constant of a reaction is the ratio of concentrations of the products and the reactants when the reaction is in equilibrium. This value is independent of the concentrations since the conditions are at equilibrium instead it depends on ionic strength and temperature.
First, we write the equilibrium expression.
K = [H2S]^2 / [H2]^2 x [S2]
K = (0.725^2) / [(0.208^2) (1.13 x 10^-6)]
K = 10751545.56 or 1.08 x 10^7
Thus, the answer is A.
Answer:
Explanation:
Hydrocarbon:
a = An organic compound made up of only carbon and hydrogen.
Such as alkane, alkene, alkyne.
Cyclic hydrocarbon:
c = Carbon chain that form rings.
Such as benzene, cyclo heptane etc
Isomers:
d = Compounds with same molecular formula and different structural formula.
Alkanes:
e = refers to saturated hydrocarbons, no matter the shape
such as methane, ethane, propane etc.
Alkene:
f = Any hydrocarbon that have at lest one carbon carbon double bond.
such as ethene, propene, butene
Saturated hydrocarbons:
b = Carbon atoms are saturated with so many hydrogen atoms that no more bonds may be formed
such alkanes.
Answer:
2 electrons
Explanation:
Barium is present in group two. It is alkaline earth metal.
It has two valance electrons. In order to achieve noble gas configuration it loses its two valance and get complete octet.
Electronic configuration:
Ba₅₆ = [Xe] 6s²
When it loses two electron it get configuration of xenon.
Chemical properties of barium:
It form salt with halogens.e.g
Ba + Br₂ → BaBr₂
IT react with oxygen and form oxide.
2Ba + O₂ → 2BaO
this oxide form hydroxide when react with water,
BaO + H₂O → Ba(OH)₂
With nitrogen it produced nitride,
3Ba + N₂ → Ba₃N₂
With acid like HCl,
Ba + 2HCl → BaCl₂ + H₂
Answer:
1. Proton = 4
2. Neutron = 5
3. Electron = 2
Explanation:
9 4Be^2+
From the above, we obtained the following:
Atomic number = 4
Mass number = 9
Charge = +2
1. Determination of the proton.
Atomic number is simply defined as the proton number. This implies that:
Atomic number = proton number
Atomic number = 4
Therefore,
4 = proton number
Proton = 4
2. Determination of the Neutron.
Mass number = Proton + Neutron
Mass number = 9
Proton = 4
Neutron =?
Mass number = Proton + Neutron
9 = 4 + Neutron
Collect like terms
Neutron = 9 – 4
Neutron = 5
3. Determination of the electron.
From the question given
9 4Be^2+
The atom has a charge of +2. This implies that the atom has lose 2 electrons. Thus we can obtain the electron as follow:
Proton = 4
Charge = +2
Electron =?
Electron = Proton – charge
Electron = 4 – 2
Electron = 2
