Copper and silver metals are commonly use as coin because they are
easily reduced
not easily reduced
easily oxidized
not easily oxidized
Correct answer is D
No explanation has been provided for this answer.
NH3(g) concentration will decrease
more NH3(g)
The equilibrium will shift to the right
There will be no effect
Correct answer is B
No explanation has been provided for this answer.
The tincture of iodine means iodine dissolved in
ethanol
bromine chloride
chlorine water
water
Correct answer is A
No explanation has been provided for this answer.
An increase in temperature and decrease in the concentration of the reactant
A decrease in the volume and increase in the pressure of the reactant
A decrease in the temperature and an incease in the concentration of the reactant
An increase in temperature and an increase in the concentration of the reactant
Correct answer is D
No explanation has been provided for this answer.
The reddish-brown rust on iron roofing sheets consists of
Fe3+(H2O)6
FeO.H2O
Fe2O3.3H2O
Fe3O4.2H2O
Correct answer is C
No explanation has been provided for this answer.