Chemistry Final

Front

What is the identity of the element with 6 energy levels and 8 valence electrons?

Back

Radon.

Front

What type of reaction is characterized by the breakdown of a compound into simpler products?

Back

Decomposition reaction.

Front

What is a solid produced from two aqueous solutions in a chemical reaction called?

Back

Precipitate.

Front

What type of reaction involves the exchange of ions between two compounds?

Back

Double displacement reaction.

Front

Which isotope of boron is more abundant: the one with an atomic mass of 10.01 or 11.01?

Back

The one with an atomic mass of 11.01.

Front

Define valence electrons.

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is a synthesis reaction?

Back

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

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.