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H\(_2\)SO\(_4\)
C\(_2\)H\(_5\)OH → C\(_2\)H\(_4\)
170\(^0\)C
The reaction above illustrates
The IUPAC Nomenclature of CH\(_3\)CH\(_2\)C(CH\(_3\))=C(CH\(_3\))\(_2\) for the compound is
Esterification reaction is analogous to
When the subsidiary quantum numbers (l) equals 1, the shape of the orbital is
What is the vapour density of 560cm\(^3\) of a gas that weighs 0.4g at s.t.p?
[Molar Volume of gas at s.t.p = 22.4 dm\(^3\) ]
Boyle's law can be expressed mathematically as
The percentage of carbon(IV) oxide in air is
The shape of ammonia molecule is
The IUPAC name of the compound above is
Heat of solution involves two steps that is accompanied by heat change. The energies involved in this steps are
The amount of water a substance chemically combined with is called water of
An example of a compound that is acidic in solution is
Biodegradable pollutants are not safe in water systems because they can cause
An example of highly unsaturated hydrocarbon is
Scandium is not regarded as a transition metal because its ion has
If a stable neutral atom has a mass number of 31, the number of electrons and neutrons respectively are
H\(_2\)S\(_{(g)}\) + Cl\(_2\)\(_{(g)}\) → 2HCl\(_{(g)}\) + S\(_{(s)}\)
What is the change in oxidation state of sulphur from reactant to product?
The product formed when ethyne is passed through a hot tube containing finely divided iron is
An example of a physical change is
25.0g of potassium chloride were dissolved in 80g of distilled water at 30\(^0\)C. Calculate the solubility of the solute in mol dm\(^3\). [K =39, Cl = 35.5]