Answered

Westonci.ca is the premier destination for reliable answers to your questions, provided by a community of experts. Get accurate and detailed answers to your questions from a dedicated community of experts on our Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Finish balancing the following equation:

[tex]\[
Al (s) + 3 Zn(NO_3)_2(aq) \rightarrow Al(NO_3)_3(aq) + 3 Zn (s)
\][/tex]

What coefficient does [tex]\( Al (s) \)[/tex] have in the balanced equation?

A. 4
B. 2
C. 1
D. 3

Sagot :

GinnyAnswer
To balance the chemical equation, we need to ensure that the number of atoms of each element on the reactant side is equal to the number of atoms of the same element on the product side. Here is the unbalanced equation:

[tex]\( Al (s) + 3 Zn(NO_3)_2(aq) \rightarrow Al(NO_3)_3(aq) + Zn (s) \)[/tex]

1. Balance the Aluminum (Al) atoms:
- There is 1 Al atom on the reactant side and 1 Al atom on the product side.
- No coefficient change is needed for Al at this step.

2. Balance the Zinc (Zn) atoms:
- There are 3 Zn atoms on the reactant side (3 [tex]\( Zn(NO_3)_2 \)[/tex]) and 1 Zn atom on the product side.
- Therefore, we need to place a coefficient of 3 in front of [tex]\( Zn \)[/tex] on the product side:
[tex]\[ Al (s) + 3 Zn(NO_3)_2(aq) \rightarrow Al(NO_3)_3(aq) + 3 Zn (s) \][/tex]

3. Balance the Nitrate [tex]\( (NO_3) \)[/tex] groups:
- On the reactant side, there are 6 nitrate groups (3 [tex]\(\times\)[/tex] 2 from [tex]\( Zn(NO_3)_2 \)[/tex]).
- On the product side, there are 3 nitrate groups (from [tex]\( Al(NO_3)_3 \)[/tex]).
- To balance the oxygens and nitrogens, we notice that each [tex]\( Zn(NO_3)_2 \)[/tex] unit already contributes 2 nitrate groups, which is correctly balancing the oxygens and nitrogens when paired with the product terms.

After following these steps, the balanced equation is:

[tex]\[ Al (s) + 3 Zn(NO_3)_2(aq) \rightarrow Al(NO_3)_3(aq) + 3 Zn (s) \][/tex]

We observe that the coefficient for [tex]\( Al (s) \)[/tex] is [tex]\( 1 \)[/tex].

Therefore, the correct answer is:

C. 1
Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.