Calcium and magnesium belong to the group of the periodic...
Calcium and magnesium belong to the group of the periodic table because both?
are metals
form cations
form colourless salts
have same number of valence electrons
Correct answer is D
No explanation has been provided for this answer.
River contaminated by alkali waste will have a pH of about. ...
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which of the following elements has the highest ionization energy? ...
The reaction 3C(s) + 2Fe2O3(s) = 4Fe(s) + 3CO2(g): ΔH =46.0 kJ is...
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