Answer: 42.14 g
Explanation: calcium nitrate - 
, the molar mass of calcium nitrate = 164 g
<h3> formula used =

= no of moles </h3>
mass required =
=
g
Answer: I think it’s B. Because as you can see from the picture there are layers
Explanation:
I think but just in case ask for a second opinion
Answer:
FeCl3 + 3KOH → Fe(OH)3 + 3KCl
Explanation: