A given mass of gas occupies 2 dm2 at 300k. At what temperature will its…
A given mass of gas occupies 2 dm2 at 300k. At what temperature will its volume be doubled…
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The dissolution of common salt in water is a physical change because
The dissolution of common salt in water is a physical change because A. the salt can be obtained…
At 25oC and 1atm, a gas occupies a volume of 1.50dm3. What volume will it…
At 25oC and 1atm, a gas occupies a volume of 1.50dm3. What volume will it occupy at 100oC…
Clothes should be properly rinsed with water after bleaching because
Clothes should be properly rinsed with water after bleaching because A. the bleach decolourizes the clothes B. chlorine…
When sodium ethanoate is treated with a few drops of concentrated tetraoxosulphate(vi)acid. one of the…
When sodium ethanoate is treated with a few drops of concentrated tetraoxosulphate(vi)acid. one of the products is A.…
From the above diagram; The caustic soda in the conical flask serves to
From the above diagram; The caustic soda in the conical flask serves to A. dry ethene gas B.…
MnO4(aq) + 8H + 5Fe2+ (to) Mn2+(aq) + 5Fe3+(aq) + H2O. The oxidation number of…
MnO4(aq) + 8H + 5Fe2+ (to) Mn2+(aq) + 5Fe3+(aq) + H2O. The oxidation number of maganese in the…
The principle of column chromatography is based on the ability of the constituents to
The principle of column chromatography is based on the ability of the constituents to A. move at different…
Zn(s) + CuSO4(aq) ( to ) ZnSO4(aq) + Cu(s) In the reaction above, the oxidizing…
Zn(s) + CuSO4(aq) ( to ) ZnSO4(aq) + Cu(s) In the reaction above, the oxidizing agent is A.…
How many unpaired electron are in the p-orbitals of a fluorine atom?
How many unpaired electron are in the p-orbitals of a fluorine atom? A. 3 B. ( 0 )…