Chemistry Review

Front

What is a prototype?

Back

A prototype is an early sample or model of a product used to test a concept or process.

Front

How many total groups are there on the Periodic Table?

Back

There are 18 groups on the Periodic Table.

Front

What is the process of changing from solid to liquid called?

Back

The process of changing from solid to liquid is called melting.

Front

To which period does Bismuth (Bi) belong?

Back

Bismuth (Bi) belongs to period 6 of the Periodic Table.

Front

What is the process of changing from solid to gas called?

Back

The process of changing from solid to gas is called sublimation.

Front

What is evaporation?

Back

Evaporation is the process by which liquid turns into vapor.

Front

What is the definition of a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What is the definition of a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is the atomic number of an element?

Back

The atomic number of an element is the number of protons in the nucleus of an atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.