Comprehensive Reactions Review - Advanced

Front

What does the symbol 'aq' represent in chemistry?

Back

The symbol 'aq' stands for 'aqueous', indicating that a substance is dissolved in water.

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that the number of atoms in the reactants must be equal to the number of atoms in the products.

Front

How many manganese (Mn) atoms are in the compound 3Cr(MnO4)6?

Back

There are 18 manganese (Mn) atoms in the compound.

Front

What is a reaction with one molecule in the reactants called?

Back

A reaction with one molecule in the reactants is called a decomposition reaction.

Front

What is a reaction with two compounds in the reactants and products called?

Back

A reaction with two compounds in the reactants and products is called a double replacement reaction.

Front

Define a synthesis reaction.

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a chemical reaction where one element replaces another element in a compound.

Front

What is a combustion reaction?

Back

A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat.

Front

What is the general formula for a double replacement reaction?

Back

The general formula for a double replacement reaction is AB + CD → AD + CB, where A and C are cations and B and D are anions.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.