Reading Chemical Formulas

What word describes a group of atoms bonded together?

• Atom

• Particle

• Molecule

• Element

Tags

NGSS.MS-PS1-1

What word describes the smallest unit of matter (stuff)?

• Molecule

• DNA

• Atom

• Element

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Molecule or atom?

• Molecule

• Atom

Tags

NGSS.MS-PS1-1

What does a number behind a letter in a chemical formula mean?

ex. CO₂

• That is the number of atoms of the letter it's behind

• That is the number of atoms of the 2nd element

• That is the number of molecules or groups

• None of the above.

Tags

NGSS.MS-PS1-1

Molecule or atom?

• Molecule

• Atom

Tags

NGSS.MS-PS1-1

Molecule or atom?

• Molecule

• Atom

Tags

NGSS.MS-PS1-1

What is this formula?

• H₂

• 2H

Tags

NGSS.MS-PS1-1

What would this formula be?

• C₂O

• CO₂

• 2CO

Tags

NGSS.MS-PS1-1

What would this formula be?

• N₃H

• NH₃

• 3 NH

Tags

NGSS.MS-PS1-1

Did we end up with the same stuff after the baking soda and vinegar reaction?

• Yes, there were the same formulas on both sides of the arrow.

• No, there are different formulas on the product side of the arrow.

• Not enough info to tell.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5