Chemistry Semester Exam

Front

What is a safety rule in a chemistry lab?

Back

Always wear safety goggles.

Front

What is the role of electrons in chemical bonding?

Back

Electrons are shared or transferred to form chemical bonds.

Front

Which element is a noble gas?

Back

Neon.

Front

What does the letter 'B' represent in a chemical diagram?

Back

A proton.

Front

What safety precautions should be taken when handling acids in the lab?

Back

Wear gloves and goggles, and work under a fume hood.

Front

What is the definition of a chemical bond?

Back

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.

Front

What are the two main types of chemical bonds?

Back

Ionic bonds and covalent bonds.

Front

What is an ionic bond?

Back

An ionic bond is formed when electrons are transferred from one atom to another.

Front

What is a covalent bond?

Back

A covalent bond is formed when two atoms share one or more pairs of electrons.

Front

What is the periodic table?

Back

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