AN AQUEOUS SOLUTION IS ACIDIC IF
AN AQUEOUS SOLUTION IS ACIDIC IF A. its pH value is high B. it s corrosive C. it…
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What is the basicity of the acid in the followed reaction? NaCO + 2CHCOOH →…
What is the basicity of the acid in the followed reaction? NaCO + 2CHCOOH → 2CH COONa +…
A mixture of NaCI(s) and CaCO3(s) is best separated by
A mixture of NaCI(s) and CaCO3(s) is best separated by A. dissolution followed by filtration B. sublimation followed…
What volume of oxygen at s.t.p would react with carbon to form 4.40g of CO2…
What volume of oxygen at s.t.p would react with carbon to form 4.40g of CO2 according to the…
Boyle’s law can be expressed mathematically as
Boyle’s law can be expressed mathematically as A. V (alpha) T (P constant) B. P (alpha) V (T…
The valence electrons of element 12Mg are in the
The valence electrons of element 12Mg are in the A. 1s orbital B. 2s orbital C. 2px orbital…
Which of the following statements is correct about sodium chloride in the solid state?
Which of the following statements is correct about sodium chloride in the solid state? A. it exists as…
An atom 17 protons, 17 electrons and 18 neutrons has a mass number of
An atom 17 protons, 17 electrons and 18 neutrons has a mass number of A. 17 B. 18…
If an element R belongs to the same group as sodium, an aqueous solution of…
If an element R belongs to the same group as sodium, an aqueous solution of ROH will A.…
Element X, with electronic configuration 2, 8, 2 and element Y with electronic configuration 2,…
Element X, with electronic configuration 2, 8, 2 and element Y with electronic configuration 2, 8, 7 are…