X=4
This is because
(4)3-2=10
12-2=10
10=10
This makes the statement true!
Hope this helps have a good day!
Answer:
Steps given below and graph is attached.
Step-by-step explanation:
First Step:
Find out
by substituting 

Second Step:
Find out
by substituting 

Third Step:
Draw a line passing through
.
Graph is attached.
Answer:
no pictur no answer
Step-by-step explanation:
On the right side, there are
• 2•2 = 4 atoms of Nb
• 2•5 = 10 atoms of O
so among the reactants on the left, the reaction is balanced as
4 Nb + 5 O₂ → 2 Nb₂O₅