24/25 Fall Final Review

Front

What is the Atomic Number of an element?

Back

The Atomic Number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the relationship between meters and centimeters?

Back

1 meter is equal to 100 centimeters.

Front

What is the law of conservation of mass in a chemical reaction?

Back

The law states that the total mass of reactants before a chemical reaction is equal to the total mass of products after the reaction.

Front

What determines the identity of an element?

Back

The identity of an element is determined by the number of protons in its nucleus.

Front

What is atomic mass?

Back

Atomic mass is the weighted average of the masses of all naturally occurring isotopes of an element.

Front

How do you convert meters to centimeters?

Back

To convert meters to centimeters, multiply the number of meters by 100.

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties.

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 significance of protons in an atom?

Back

Protons determine the atomic number and the identity of the element.

Front

What are isotopes?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.