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Quiz Balancing Chemical Equations 2

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Quiz Balancing Chemical Equations 2

  1. 1. Colegio San Patricio Name ______________________________________________ Date __________ Quiz- Balancing Chemical Equations – TYPE A 1.- What happens in a chemical reaction? a) atoms are destroyed b) atoms are created c) atoms are rearranged d) all are correct 2.- A substance that undergoes a chemical change in a reaction is called a) product b) reactant c) a catalyst d) an enzyme 3.- A chemical equation is balanced by changing or adding a) subscripts b) reactants c) coefficients d) chemicals 4.- State the law of conservation of mass 5.- Balance the following equations: a) SnO2 + H2  Sn + H2O b) SeCl6 + O2  SeO2 + Cl2 c) V2O5 + HCl  VOCl3 + H2O d) FeO3 + CO  Fe + CO2 BONUS: S + H2SO4  SO2 + H2O Colegio San Patricio Name ______________________________________________ Date __________ Quiz- Balancing Chemical Equations – TYPE B 1.- What happens in a chemical reaction? a) atoms are destroyed b) atoms are created c) atoms are rearranged d) all are correct 2.- A substance that undergoes a chemical change in a reaction is called a) product b) reactant c) a catalyst d) an enzyme 3.- A chemical equation is balanced by changing or adding a) subscripts b) reactants c) coefficients d) chemicals 4.- State the Law of Conservation of mass. 5.- Balance the following equations: a) H3PO4 + HCl  PCl5 + H2O b) Au2S3 + H2  Au + H2S c) HSbCl4 + H2S  Sb2S3 + HCl d) SiO2 + HF  SiF4 + H2O BONUS : V2O5 + CCl4  VCl5 + COCl2
  2. 2. Colegio San Patricio Name ______________________________________________ Date __________ Quiz- Balancing Chemical Equations – TYPE C 1.- What happens in a chemical reaction? a) atoms are destroyed b) atoms are created c) atoms are rearranged d) all are correct 2.- A substance that undergoes a chemical change in a reaction is called a) product b) reactant c) a catalyst d) an enzyme 3.- A chemical equation is balanced by changing or adding a) subscripts b) reactants c) coefficients d) chemicals 4.- State the Law of Conservation of mass. 5.- Balance the following equations: a) KOH + H3PO4  K3PO4 + H2O b) NCl3 + H2O  HClO + NH3 c) HSbCl4 + H2S  Sb2S3 + HCl d) V2O5 + HCl  VOCl3 + H2O BONUS: CO + H2  C8H18 + H2O Colegio San Patricio Name ______________________________________________ Date __________ Quiz- Balancing Chemical Equations- TYPE D 1.- What happens in a chemical reaction? a) atoms are destroyed b) atoms are created c) atoms are rearranged d) all are correct 2.- A substance that undergoes a chemical change in a reaction is called a) product b) reactant c) a catalyst d) an enzyme 3.- A chemical equation is balanced by changing or adding a) subscripts b) reactants c) coefficients d) chemicals 4.- State the Law of Conservation of mass. 5.- Balance the following equations: a) SnO2 + H2  Sn + H2O b) Au2S3 + H2  Au + H2S c) FeO3 + CO  Fe + CO2 d) V2O5 + HCl  VOCl3 + H2O BONUS: S + H2SO4  SO2 + H2O

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