It’s d
I Did this myself and was right
Answer:
a. 
b. 
Explanation:
Hello,
a. In this case, the overall reaction is:

Nevertheless, the ionic version is:

Since the base is insoluble, thereby, the balanced net ionic equation turns out:

Since bromide ions become spectator ions.
b) In this case, the overall reaction is:

Nevertheless, the ionic version is:

Since lead (II) iodide is insoluble whereas lithium nitrate does not, thereby, the net ionic equation turns out:

Since lithium and nitrate ions become spectator ions.
Regards.
Answer:
Newton had important theories about gravity, but Einstein developed a new theory of space and gravity. He thought that space was like a blanket that bends and twists. After that, scientists began to theorize that black holes could exist.
Explanation:
Answer:
4
Explanation:
there are four moles of aluminium