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Vinvika [58]
3 years ago
9

Choose all the answers that apply.

Chemistry
2 answers:
Tresset [83]3 years ago
5 0
<h3>Answer:</h3>

#a.2H2 + O2 → 2H2O

#b. 2S + 3O2 → 2SO3

#d. 2K + 2H2O → H2 + 2KOH

<h3>Explanation:</h3>
  • A balanced chemical equation is one that has equal number of atoms of each element on both sides of the equation.

In this case;

  • 2H2 + O2 → 2H2O - is balanced since it has, 4 hydrogen atoms and 2 oxygen atoms on either sides of the equation.
  • 2S + 3O2 → 2SO3, is balanced. It has 2 sulfur atoms and 6 oxygen atoms on both side of the equation.
  • 2K + 2H2O → H2 + 2KOH, is balanced , 2 potassium atoms, 4 hydrogen atoms and 2 oxygen atoms on both side of the equation.
  • On the other hand, the equations that are not balanced include;
  1. Li + Cl2 → LiCl
  2. 2Fe + Cu(NO3)2 → 2Cu + Fe(NO3)2

This is because the number of atoms of each element is not equal on both side of the equation/

nordsb [41]3 years ago
5 0

Answer: A B D

Explanation:

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