Chemistry Practice for Fall 24 Final

Front

Which element is similar to Lithium (Li)?

Back

Potassium (K) is similar to Lithium (Li) as they are both alkali metals.

Front

What are the atoms along the staircase in the periodic table called?

Back

The atoms along the staircase are called metalloids.

Front

Which example best describes a physical change?

Back

An ice cube melting is a physical change because it changes state but not identity.

Front

What does a chemical change do to the identity of a substance?

Back

A chemical change changes the identity of the substance.

Front

What is the chemical symbol for Sodium?

Back

The chemical symbol for Sodium is Na.

Front

What are the three main states of matter?

Back

The three main states of matter are solid, liquid, and gas.

Front

What is the definition of a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

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.

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 an example of a chemical change?

Back

An example of a chemical change is iron rusting.