Physical Science Semester 1 Exam Review

Front

What is the correct name for N₂O?

Back

Dinitrogen oxide

Front

What is the atomic number of an element?

Back

The total number of protons in the nucleus.

Front

Which compound would likely have the highest boiling point?

Back

NaCl (Sodium Chloride)

Front

What do elements in the same group of the periodic table have in common?

Back

Similar chemical properties.

Front

What is the chemical formula for iron(III) chloride?

Back

FeCl₃

Front

What is the definition of an ion?

Back

An atom or molecule that has a net electric charge due to the loss or gain of one or more electrons.

Front

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

Back

An ionic bond is formed through the transfer of electrons, while a covalent bond is formed through the sharing of electrons.

Front

What is the significance of the atomic mass of an element?

Back

It represents the average mass of an atom of an element, taking into account the relative abundances of its isotopes.

Front

What is a chemical reaction?

Back

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

Front

What is the law of conservation of mass?

Back

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