FA22 Chemistry Practice Final

Front

What type of element is most abundant in the periodic table?

Back

Metals

Front

What is the charge of an element with a PEN number of 0?

Back

0

Front

What type of reaction occurs when zinc reacts with hydrogen sulfide to form zinc sulfide and hydrogen?

Back

Single replacement

Front

Which model best demonstrates a balanced chemical equation?

Back

Model F

Front

What is the process called when a substance changes from a gas to a liquid?

Back

Condensation

Front

What are the three main types of elements found in the periodic table?

Back

Metals, Nonmetals, Metalloids

Front

What is the definition of a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the difference between a synthesis reaction and a decomposition reaction?

Back

A synthesis reaction combines two or more substances to form a new compound, while a decomposition reaction breaks down a compound into simpler substances.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

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.