Unit 6: Chemical Reactions

Front

What is a synthesis reaction?

Back

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

Front

What is a single displacement reaction?

Back

A single displacement reaction is a chemical reaction where one element displaces another in a compound, resulting in a new element and a new compound.

Front

What characterizes 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 and heat, typically producing carbon dioxide and water.

Front

How do you determine the number of oxygen atoms in a compound like 5 Al3(CO3)2?

Back

To find the number of oxygen atoms, multiply the number of carbonate groups (2) by the number of oxygen atoms in each (3), then multiply by the coefficient (5): 5 * 2 * 3 = 30.

Front

What is the balanced equation for the combustion of C2H2?

Back

The balanced equation is 2 C2H2 + 5 O2 -> 4 CO2 + 2 H2O.

Front

Define a decomposition reaction.

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler substances.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a chemical reaction where two compounds exchange ions or bonds to form two new compounds.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy, usually in the form of heat, to its surroundings.