Chemistry Semester 1 Final

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

Convert 500 K to Celsius and Fahrenheit.

Back

500 K is equivalent to 226.85°C and 440.33°F.

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of particles in a substance.

Front

What are the rows on the Periodic Table called?

Back

The rows on the Periodic Table are referred to as Periods.

Front

How do calcium and fluorine atoms combine to form a compound?

Back

In the compound, two atoms of fluorine combine with one atom of calcium.

Front

What is a chemical bond?

Back

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

Front

What is the difference between ionic and covalent bonds?

Back

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

Front

What is the significance of the Periodic Table?

Back

The Periodic Table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is a mole in chemistry?

Back

A mole is a unit that measures the amount of substance, defined as containing exactly 6.022 x 10^23 particles.