Chemistry
Grade-10
Easy
Question
Balance the following:
____ Al + ____ HCl → ____ AlCl3 + ____ H2
- 1, 3, 1, 2
- 2, 3, 2, 3
- 2, 6, 2, 3
- 3, 2, 6, 2
Hint:
the number of elements before and after the reaction should be the same
The correct answer is: 2, 6, 2, 3
2 Al + 6 HCl → 2AlCl3 + 3H2.
Now, this equation is balanced as the number of elements before and after the reaction is the same.
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