Final review

Front

What should be done if a piece of equipment becomes damaged during a lab?

Back

Inform the teacher.

Front

What are covalent bonds made up of?

Back

Covalent bonds are made up of multiple non-metals.

Front

What happens to the average kinetic energy of oxygen molecules when the temperature is increased from 149 K to 298 K?

Back

The average kinetic energy of the oxygen molecules in the container increases.

Front

Which element shares common properties with sodium (Na) based on the periodic table?

Back

Magnesium (Mg) shares common properties with sodium.

Front

What is a characteristic of Group 14 elements?

Back

They have 4 valence electrons.

Front

What is the definition of a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms.

Front

What is the relationship between temperature and kinetic energy in gases?

Back

As the temperature of a gas increases, the average kinetic energy of its molecules also increases.

Front

What is the general trend in reactivity for alkali metals in the periodic table?

Back

Reactivity increases as you move down the group.

Front

What is the role of a teacher in a laboratory setting?

Back

The teacher ensures safety and proper procedures are followed during experiments.