Answer:
Beryllium Fluoride (BeF2) is an ionic compound
crop rotation, green manure, and bone meal
Explanation:
I just looked it up. hope it helps
The answer is starch because iodine reacts with starch to change the colour to inky blue or black.
All the others are present in milk naturally so I’m assuming they intent starch
PV=nRT
P= ? atm
V= 2 L
T= 423 K
n= 2.3 moles
R= 0.08205
(P)(2)=(2.3)(0.08205)(423)
P= (79.826445)/(2)
P= 39.9132225 atm