Question

What is the magnesium hydroxide mass needed to neutralize 125 ml of hydrochloric acid
with the concentraction 0.136 mol/L?
a) 0.2465 g.
b) 0.493 g.
c) 0.986 g.
d) 1.972 g.
........... ml of H2SO4 of concentration 1M is needed to neutralize 10 ml
of KOH solution of concentration 1M is needed.
a) 10.
b) 20.
c)5
When adding sodium hydroxide solution to .....
......... solution, a white perception is
Formed and dissolves in the excess of it, when adding this unknown solution to barium
chloride salt a ........... ... precipitate is formed.
a) FeCl3 / reddish brown.
b) Al2(SO4)3 / white.
c) CaSO4 / white.
d) FeCl2 / greenish white.
When strongly heating a sample of hydrated barium chloride in a heating flask, its mass
Will be changed as represented in the graph ...
Mass
Mass
d) 2.
b)
BV
duration
Duration
Mass​

Answer 1

Answer:

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