Chapter 12 Review (Part 3)

Joe watched as two compounds reacted and changed into two different compounds. He determined the reaction that he observed was a __________ reaction.

• synthesis

• decomposition

• double replacement

• single replacement

• combustion

Carter conducted an experiment in which he started with one element and one compound and ended up with a different element and a different compound. He classified this reaction as a __________ reaction.

• synthesis

• decomposition

• double replacement

• single replacement

• combustion

Haleigh observed an experiment in which one compound underwent a chemical reaction that produced two compound. She classified this as a _________ reaction.

• synthesis

• decomposition

• double replacement

• single replacement

• combustion

When a substance combines with O2 and releases energy, carbon dioxide, and water, a __________ reaction has occurred.

• synthesis

• decomposition

• double replacement

• single replacement

• combustion

 $C_6H_{12}\ +\ 9\ O_{2\ }->\ 6CO_2\ +\ 6\ H_2O$  

• synthesis 

• decompostition 

• double replacement 

• single replacement 

• combustion

 $CaCO_3\ ->\ CaO\ +CO_2$  

• synthesis 

• decomposition

• double replacement 

• single replacement 

• combustion

 $MgCl_2\ +\ Li_2CO_3\ ->\ MgCO_3\ +\ 2LiCl$  

• synthisis 

• decomposition

• double replacement 

• single replacement

• combustion

 $2NH_3\ +\ 3I_2\ ->\ N_2I_6\ +\ 3H_2$  

• synthesis 

• decomposition

• double replacement 

• single replacement 

• combustion

 $H_2O\ +\ SO_3\ ->\ H_2SO_4$  

• synthesis 

• decomposition 

• double replacement 

• single replacement 

• combustion 

 $Be\left(NO_3\right)_2$ 

How many atoms of each element are in the above compound. 

• Be : 2   N: 2   O: 6 

• Be: 1  N: 2   O: 5 

• Be: 2  N: 1   O:6 

• Be: 1   N: 2   O: 6