Chemical Reaction: Types of Chemical Reactions

In a synthesis or combination reaction, two or more substances combine to form________.

• Two new products

• A single product

A decomposition reaction is the _______ as a synthesis reaction.

• opposite

• same 

A decomposition reaction begins with ______ reactant(s) and breaks down into ______ or more simpler substances.

• one  ;  two

• many  ;  one

The products of a combustion reaction are always .....

• O₂ and CO₂

• CO₂ and H₂O

A single replacement reaction occurs when one _______ replaces another in a compound.

• element 

• compound 

What evidence of a chemical reaction do you observe in the picture?

• There are silver crystals forming on the wire.

• Fire is produced.

• Everything remains unchanged.

In a double replacement reaction ions "swap partners", two compounds produce ________ new compounds

• two

• one 

• the same

What type of reaction occurs in your stomach when you take an antacid like TUMS?

• combustion

• single replacement

• synthesis

• double replacement

• decomposition