September 18, 2015

Chemistry answers



3ai)
CH3CH=CHCH# is alkene
CH3COOCH3 is alkanoate
CH3CH(OH)CH2CH3 is alkanol
CH3(CH2)2CH3 is alkane
ii) -But-2-ene
-ethyl ethanoate
-Butane
-But-2-ol
iii)CH3(CH2)2 2bi)
-Ultraviolet light ii)
C2H6+Cl2->C2H5Cl+HCl
iii)
-C2H5Cl+Cl2->C2H4Cl2+HCl
-C2H4Cl2+Cl2->C2H3Cl3+HCl
-C2H3Cl3+Cl2->C2H2Cl4+HCl
-C2H2Cl4+Cl4+Cl2->C2HCl5+HCl
-C2HCl5+Cl2->C2Cl6+HCl
iv)
Hexachloroethane
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
2ai)
-Number of neutrons:-20,Electron
configuration:-1s^22s^22p^63s^23p^64s^1
-Number of neutrons:-10,Group:-7
-Number of neutrons:10,Electron
configuration:-1s^22s^22p^5,Group:-0
ii)
-X is alkali metals
-Y is Halogens
-Z is inert or noble gas
iii)
-High melting point -Conduct electricity in molten form
2bi)
This is because of decreasing atomic number
ii)
Relative atomic mass is the mass of an element
in one atom of carbon-12
iii)
V.D=R.A.M/2
V.D=32/2
=16
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
1a)
Hydrocarbon;Thisn is a compound consisting
of carbon and hydrogen only
1b)
-High temperature
-Presence of catalyst
1c)
Oxidation is defined as the loss of electrons
1d)
-The object is placed at the cathode
-The electrolyte to be used should contain the
electroplating metal
1e)
i)Pent-2-ene
ii)Butanoic acid
1f)
Dalton's law of partial pressure states that the
total pressure of a mixture of a gases equals to sum of
individual pressure
1g)
i)-They have improved mechanical properties
-They are better in service
ii)-Carbon
-Iron
1h)
i)Electrovalent bond
ii)Mettalic bond
iii)Electrovalent bond
1i)
i)Isomers are compounds having the same molecular formular
but different structural
formular
ii)Because it is inert and have a completely filled
orbitals
1j)
Galvanic cells are cells that convert electrical energy to chemical
energy
Share This
Previous Post
Next Post

This Post was publish by the above Author

0 comments: