Steps Of Balancing Equations Quiz

9 Questions | By Anaselby | Updated: Mar 21, 2022 | Attempts: 1769

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Steps Of Balancing Equations Quiz - Quiz

A simple way to learn: practicing! By applying the Law of conservation of mass it is easy to have any chemical equation balanced! A few rules and everything is possible!

Questions and Answers

1.

What happens in a chemical reaction?
- A.
  
  Atoms are destroyed
- B.
  
  Atoms are created
- C.
  
  Atoms are rearranged
- D.
  
  Atoms are heated or cooled
2.

a ssa A substance that undergoes a change in a chemical reaction is
- A.
  
  A product
- B.
  
  A chemical
- C.
  
  A reactant
- D.
  
  An enzyme
3.

A chemical equation is balanced by changing or adding
- A.
  
  Chemical symbols
- B.
  
  Subscripts
- C.
  
  Coefficients
- D.
  
  Reactants
4.

A balanced chemical equation shows the proportions of reactants and products necessary for
- A.
  
  The reaction to occur
- B.
  
  Mass to be conserved.
- C.
  
  Energy use to be minimized.
- D.
  
  Electrolysis to occur.
5.

If you start with 5 mol of O₂ in the reaction 2Mg + O₂ ----> 2MgO, how many moles of Mg will you need?
- A.
  
  4
- B.
  
  5
- C.
  
  8
- D.
  
  10
6.

What coefficients will satisfy the following equation Hg + O₂ ----> HgO
- A.
  
  1,1,1
- B.
  
  2,2,1
- C.
  
  2,1,2
- D.
  
  1,2,2
7.

What coefficients will satisfy the following equation AgNO₃ + NaCl ----> AgCl + NaNO₃
- A.
  
  2,2,2,1
- B.
  
  1,1,1,1
- C.
  
  1,2,1,2
- D.
  
  2,1,2,1
8.

What coefficients will satisfy the following equation Al + O₂ --> Al₂O₃
- A.
  
  1,3,2
- B.
  
  4,3,2
- C.
  
  2,2,2
- D.
  
  2,1,3
9.

What coefficients will satisfy the following equation H₂ + O₂ ---> H₂O
- A.
  
  2,2,1
- B.
  
  2,1,2
- C.
  
  4,1,2
- D.
  
  2,2,2