Chemistry Flashcard Review

Front

What are elements made of?

Back

Elements are made of one type of atom.

Tags

NGSS.MS-PS1-1

Front

How many atoms are in the formula H_2O?

Back

There are 3 atoms in H_2O.

Tags

NGSS.MS-PS1-1

Front

What does the periodic table show?

Back

The periodic table shows all of the elements.

Front

How many hydrogen atoms are in a molecule of glucose (C_6H_{12}O_6)?

Back

There are 12 hydrogen atoms in a molecule of glucose.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Tags

NGSS.MS-PS1-1

Front

What is a compound?

Back

A compound is a substance formed when two or more different types of atoms bond together.

Tags

NGSS.MS-PS1-1

Front

What is the atomic number?

Back

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

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number and properties, helping to predict their behavior.

Tags

NGSS.HS-PS1-1

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the number and type of atoms in a molecule using symbols.

Tags

NGSS.MS-PS1-1

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.