(Br-BrBr-Br) 2 The diagram shows part of the structures of three substances, P, Q and R, at room temperature and
pressure.
Ar
K
I-
K*
I-
(Ar
Ar
Br-BrBr-Br
(Ar
Ar
I- XK
I- XK*
Ar
Br-Br
Ar
K*
Ar
I-
K
I
Br-Br
(Ar
P
R
(a) Describe substances P, Q and R in terms of
their bonding
the arrangement of their particles,
the motion of their particles.

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?