The balanced equation is
<span>Zn + 2 AgNO3 = Zn(NO3)2 + 2 Ag </span>
<span>the ratio between Zn and AgNO3 is 1 : 2 </span>
<span>moles AgNO3 required = 5.7 x 2 =11.4 </span>
<span>we have only 8.9 moles of AgNO3 so it is the limiting reactant </span>
<span>moles Zn needed = 8.9/2=4.45 </span>
<span>moles Zn in excess = 5.7 - 4.45 =1.25 ( or 1.3 at two significant figures)
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I think the answer is 13.5 square units.
10 times 0.84 is 8.4 or 8.40 is completely fine as well.
Answer:
Step-by-step explanation:
Can u help me with a question I’m in 5th grade
