Unit 3 Review // Bonding and Reactions

Front

What type of reaction is represented by the equation: 2 C5H5 + Fe → Fe(C5H5)2?

Back

Synthesis reaction: A reaction where two or more reactants combine to form a single product.

Front

What does the arrow (→) signify in a chemical equation?

Back

Yield: It indicates the direction of the reaction, showing that reactants are transformed into products.

Front

Balance the equation: _SO2 + _Li2Se → _SSe2 + _Li2O. What are the coefficients?

Back

1 SO2 + 2 Li2Se → 1 SSe2 + 2 Li2O.

Front

What is the term for the large number in front of a chemical formula?

Back

Coefficient: It indicates the number of molecules or moles of a substance in a reaction.

Front

What is the name of the covalent compound made of one sulfur and two oxygen atoms?

Back

Sulfur dioxide.

Front

Define a chemical reaction.

Back

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

Front

What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products.

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that start a chemical reaction, while products are substances formed as a result of the reaction.

Front

What is a double replacement reaction?

Back

A reaction where two compounds exchange ions or bonds to form two new compounds.

Front

What is the significance of subscripts in a chemical formula?

Back

Subscripts indicate the number of atoms of each element in a molecule.