Chemistry
Grade-10
Easy

Question

Balance the following:
____ Al + ____ HCl → ____ AlCl3 + ____ H2
 

  1. 1, 3, 1, 2
  2. 2, 3, 2, 3
  3. 2, 6, 2, 3
  4. 3, 2, 6, 2

hintHint:

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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