Final Exam Review MCC

Front

What type of reaction is represented by the equation: 3 Pb + 2 H₃PO₄ → 3 H₂ + 1 Pb₃(PO₄)₂?

Back

Single displacement reaction.

Front

How many moles of hydrogen are needed to react with 5 moles of nitrogen in the equation: N₂ + 3H₂ → 2NH₃?

Back

15 moles of hydrogen.

Front

What atom matches the electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰?

Back

Zinc.

Front

What are chemical properties?

Back

Chemical properties describe how matter reacts with other matter, such as flammability and toxicity.

Front

How many valence electrons does Chlorine have?

Back

Chlorine has 7 valence electrons.

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

Define decomposition reaction.

Back

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

Front

What is a single displacement reaction?

Back

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

Front

What is a double displacement reaction?

Back

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

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms and are crucial for understanding chemical reactivity.