Season4Ever
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Chromium (Cr) can combine with Chlorine (Cl2) to form Chromium chloride (CrCl3). Which equation is a correction representation of this reaction?
2Cr + 3Cl2 --> CrCl3.
Cr + Cl2 --> CrCl3.
2Cr + Cl2 --> CrCl3.
2Cr + 3Cl2 --> 2CrCl3.

Respuesta :

SapphireMoon
Balance the reaction so the same number of each type of atom is on each side. Which option seems balanced to you?
Here, You just need to compare the number of atoms at both sides, only option D contains equal number of atom, so it is correct equation.

2Cr + 3Cl2 --> 2CrCl3.

Hope this helps!

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