Unit 6: Chemical Reactions

Front

How many oxygen atoms are in the compound Al₃(CO₃)₂?

Back

There are 30 oxygen atoms in the compound Al₃(CO₃)₂.

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants.

Front

What type of reaction is represented by the equation 3Mg + N₂ --> Mg₃N₂?

Back

This is a synthesis reaction.

Front

What type of reaction is represented by the equation 3Ca + 2AlCl₃ --> 3CaCl₂ + 2Al?

Back

This is a single displacement reaction.

Front

Why does the reaction 2 Al(s) + 3 NiBr₂ (aq) --> 2 AlBr₃ (aq) + 3 Ni(s) take place?

Back

This reaction takes place because Aluminum is more active than Nickel.

Front

Define a chemical reaction.

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that is consumed during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is produced as a result of a chemical reaction.

Front

What is the difference between a synthesis reaction and a decomposition reaction?

Back

A synthesis reaction involves combining two or more substances to form a new compound, while a decomposition reaction involves breaking down a compound into simpler substances.

Front

What is an example of a double displacement reaction?

Back

An example of a double displacement reaction is: AB + CD --> AD + CB, where two compounds exchange ions.