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In countries where the temperature fall below 273k, salt always spilled on the road in order to
Electronic configuration of an element 13 in the subsidiary energy level is
The furring of kettles is caused by the presence of what compound in water?
Which of the following results in the fall of acid rain?
Detergents are manufactured with straight hydrocarbon chains, is to make them
When sugar is dissolve in tea, the reaction is accomplished by?
The elements that belong to the third period of periodic table are
An oxidation state of Cr in K2Cr2O7
The energy value of petrol can be determined by
The basic particles from which matter could be made up of are as follow, except?
\(Cu_2S_{(s)}+ O_{2(g)} = 2CU_{(s)} + SO_{2(g)}\).
In the above reaction, the oxidation number of Cu changes from ___ to _______?