Chemistry 1st Semester Review

Front

A mixture in which the composition is uniform throughout.

Back

Homogeneous

Front

Which element is the most electronegative?

Back

O (Oxygen)

Front

Examples of this property include hardness, density, and malleability.

Back

Physical properties

Front

What are the subshells in the n = 4 orbital?

Back

s, p, d, and f

Front

How do you determine the number of neutrons an element will have?

Back

Subtract the atomic number from the mass number.

Front

What is the definition of a chemical change?

Back

A process where one or more substances are transformed into different substances.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

Define an isotope.

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.