quiz balancing chemical equations 2

3
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) SnO 2 + H 2 Sn + H 2 O b) SeCl 6 + O 2 SeO 2 + Cl 2 c) V 2 O 5 + HCl VOCl 3 + H 2 O d) FeO 3 + CO Fe + CO 2 BONUS: S + H 2 SO 4 SO 2 + H 2 O 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) H 3 PO 4 + HCl PCl 5 + H 2 O b) Au 2 S 3 + H 2 Au + H 2 S c) HSbCl 4 + H 2 S Sb 2 S 3 + HCl d) SiO 2 + HF SiF 4 + H 2 O BONUS : V 2 O 5 + CCl 4 VCl 5 + COCl 2

Upload: guest51d6d6

Post on 13-Jul-2015

744 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Quiz  Balancing Chemical Equations  2

Colegio San PatricioName ______________________________________________ Date __________

Quiz- Balancing Chemical Equations – TYPE A

1.- What happens in a chemical reaction?a) atoms are destroyed b) atoms are createdc) atoms are rearranged d) all are correct

2.- A substance that undergoes a chemical change in a reaction is calleda) product b) reactant c) a catalyst d) an enzyme

3.- A chemical equation is balanced by changing or addinga) subscripts b) reactants c) coefficients d) chemicals

4.- State the law of conservation of mass

5.- Balance the following equations:a) SnO2 + H2 Sn + H2Ob) SeCl6 + O2 SeO2 + Cl2

c) V2O5 + HCl VOCl3 + H2Od) FeO3 + CO Fe + CO2

BONUS: S + H2SO4 SO2 + H2O

Colegio San PatricioName ______________________________________________ Date __________

Quiz- Balancing Chemical Equations – TYPE B

1.- What happens in a chemical reaction?a) atoms are destroyed b) atoms are createdc) atoms are rearranged d) all are correct

2.- A substance that undergoes a chemical change in a reaction is calleda) product b) reactant c) a catalyst d) an enzyme

3.- A chemical equation is balanced by changing or addinga) subscripts b) reactants c) coefficients d) chemicals

4.- State the Law of Conservation of mass.

5.- Balance the following equations:a) H3PO4 + HCl PCl5 + H2Ob) Au2S3 + H2 Au + H2Sc) HSbCl4 + H2S Sb2S3 + HCld) SiO2 + HF SiF4 + H2O

BONUS : V2O5 + CCl4 VCl5 + COCl2

Page 2: Quiz  Balancing Chemical Equations  2

Colegio San PatricioName ______________________________________________ Date __________

Quiz- Balancing Chemical Equations – TYPE C

1.- What happens in a chemical reaction?a) atoms are destroyed b) atoms are createdc) atoms are rearranged d) all are correct

2.- A substance that undergoes a chemical change in a reaction is calleda) product b) reactant c) a catalyst d) an enzyme

3.- A chemical equation is balanced by changing or addinga) subscripts b) reactants c) coefficients d) chemicals

4.- State the Law of Conservation of mass.

5.- Balance the following equations:a) KOH + H3PO4 K3PO4 + H2Ob) NCl3 + H2O HClO + NH3

c) HSbCl4 + H2S Sb2S3 + HCld) V2O5 + HCl VOCl3 + H2O

BONUS: CO + H2 C8H18 + H2O

Colegio San PatricioName ______________________________________________ Date __________

Quiz- Balancing Chemical Equations- TYPE D

1.- What happens in a chemical reaction?a) atoms are destroyed b) atoms are createdc) atoms are rearranged d) all are correct

2.- A substance that undergoes a chemical change in a reaction is calleda) product b) reactant c) a catalyst d) an enzyme

3.- A chemical equation is balanced by changing or addinga) subscripts b) reactants c) coefficients d) chemicals

4.- State the Law of Conservation of mass.

5.- Balance the following equations:a) SnO2 + H2 Sn + H2Ob) Au2S3 + H2 Au + H2Sc) FeO3 + CO Fe + CO2

d) V2O5 + HCl VOCl3 + H2O

BONUS: S + H2SO4 SO2 + H2O

Page 3: Quiz  Balancing Chemical Equations  2