christinawood
17.10.2021 •
Chemistry
Which has more thermal energy, a boiling pot of water or an iceberg?” Below you can see each student’s argument
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Ответ:
When balancing an equation, you need to know how many of each atom is on each side.
Left hand side:
1 Al , 1H , 1 Cl
Right hand side:
1 Al , 3 Cl, 2 H
You need to change the numbers on each side until the same amount is on both sides:
Al + HCl → AlC₃ + H₂
Al + 3HCl → AlC₃ + H₂
Al + 3HCl → AlC₃ + 3H₂
Al + 3HCl → AlC₃ + 3H₂
Al + 6HCl → AlC₃ + 3H₂
Al + 6HCl → 2AlC₃ + 3H₂
2Al + 6HCl → 2AlC₃ + 3H₂
Which is now balanced!
The balanced equation again is:
2Al + 6HCl → 2AlC₃ + 3H₂Hope this helps!