Unit 7: Chemical Reactions

Front

What is chemical equilibrium?

Back

Chemical equilibrium is the state in a reversible reaction where the rate of formation of reactants equals the rate of formation of products, resulting in constant concentrations of both.

Front

What type of reaction breaks down a compound into two or more simpler substances?

Back

Decomposition reaction.

Front

What is the general form of a decomposition reaction?

Back

AB → A + B, where AB is a compound that breaks down into its elements or simpler compounds.

Front

What is a synthesis reaction?

Back

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

Front

Provide an example of a synthesis reaction.

Back

Na + Cl → NaCl.

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

Front

What is the purpose of balancing a chemical equation?

Back

Balancing a chemical equation ensures that the law of conservation of mass is obeyed, meaning the number of atoms for each element is the same on both sides of the equation.

Front

What is a double replacement reaction?

Back

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

Front

What is an example of a double replacement reaction?

Back

AB + CD → AD + CB, where A and C are cations and B and D are anions.

Front

What is a single replacement reaction?

Back

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