Metals are said to be malleable because they
are good conductors heat
are good conductors of electricity
can be beaten into sheets
can be alloyed
can be polished
Correct answer is C
No explanation has been provided for this answer.
magnetite
cryolite
bauxite
cassiterite
Correct answer is C
No explanation has been provided for this answer.
Rusting of iron is an example of
deliquescence
decomposition
displacement reaction
redox reaction
reversible reaction
Correct answer is D
No explanation has been provided for this answer.
Two metallic ions commonly present in hard water are
Ca2+ and Zn2+
Cu2+ and Na+
Mg2+ and Ca2+
Fe2+ and Na+
Zn2+ and Cu2+
Correct answer is C
No explanation has been provided for this answer.
The spontaneity of a chemical reaction is determined by the change in the
concentration of the reactants
temperature of the system
free energy of the system
pressure applied to the system
volume of the reactants
Correct answer is C
No explanation has been provided for this answer.