Answered

Discover the best answers at Westonci.ca, where experts share their insights and knowledge with you. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

Which chemical equation is properly balanced?

A. [tex]2 Al + 3 CuSO_4 \rightarrow Al_2(SO_4)_3 + 3 Cu[/tex]

B. [tex]Al + 3 CuSO_4 \rightarrow Al_2(SO_4)_3 + 3 Cu[/tex]

C. [tex]2 Al + CuSO_4 \rightarrow Al_2(SO_4)_3 + 3 Cu[/tex]

D. [tex]2 Al + 3 CuSO_4 \rightarrow Al_2(SO_4)_3 + Cu[/tex]

Sagot :

GinnyAnswer
To determine which chemical equation is properly balanced, we need to verify that the number of each type of atom on the left side (reactants) matches the number of each type of atom on the right side (products). Let's consider each equation given:

1. Equation 1:
\(2 \text{Al} + 3 \text{CuSO}_4 \rightarrow \text{Al}_2(\text{SO}_4)_3 + 3 \text{Cu}\)

- Left Side:
- Al: 2 atoms
- Cu: 3 atoms (from 3 CuSO_4)
- SO_4: 3 groups (from 3 CuSO_4)

- Right Side:
- Al: 2 atoms (from Al_2(SO_4)_3)
- Cu: 3 atoms
- SO_4: 3 groups (from Al_2(SO_4)_3)

Both sides have equal numbers of Al, Cu, and SO_4. This equation is balanced.

2. Equation 2:
\( \text{Al} + 3 \text{CuSO}_4 \rightarrow \text{Al}_2(\text{SO}_4)_3 + 3 \text{Cu}\)

- Left Side:
- Al: 1 atom
- Cu: 3 atoms (from 3 CuSO_4)
- SO_4: 3 groups (from 3 CuSO_4)

- Right Side:
- Al: 2 atoms (from Al_2(SO_4)_3)
- Cu: 3 atoms
- SO_4: 3 groups (from Al_2(SO_4)_3)

The numbers of Al atoms are not equal on both sides: 1 Al (left) and 2 Al (right). This equation is not balanced.

3. Equation 3:
\( 2 \text{Al} + \text{CuSO}_4 \rightarrow \text{Al}_2(\text{SO}_4)_3 + 3 \text{Cu}\)

- Left Side:
- Al: 2 atoms
- Cu: 1 atom (from 1 CuSO_4)
- SO_4: 1 group (from 1 CuSO_4)

- Right Side:
- Al: 2 atoms (from Al_2(SO_4)_3)
- Cu: 3 atoms
- SO_4: 3 groups (from Al_2(SO_4)_3)

The numbers of Cu and SO_4 groups are not equal on both sides: 1 Cu and 1 SO_4 (left) versus 3 Cu and 3 SO_4 (right). This equation is not balanced.

4. Equation 4:
\( 2 \text{Al} + 3 \text{CuSO}_4 \rightarrow \text{Al}_2(\text{SO}_4)_3 + \text{Cu}\)

- Left Side:
- Al: 2 atoms
- Cu: 3 atoms (from 3 CuSO_4)
- SO_4: 3 groups (from 3 CuSO_4)

- Right Side:
- Al: 2 atoms (from Al_2(SO_4)_3)
- Cu: 1 atom
- SO_4: 3 groups (from Al_2(SO_4)_3)

The numbers of Cu atoms are not equal on both sides: 3 Cu (left) versus 1 Cu (right). This equation is not balanced.

From this review, we can conclude that only the first equation is properly balanced:

[tex]\[2 \text{Al} + 3 \text{CuSO}_4 \rightarrow \text{Al}_2(\text{SO}_4)_3 + 3 \text{Cu}\][/tex]
We appreciate your time on our site. Don't hesitate to return whenever you have more questions or need further clarification. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.