Elements, Molecules and Compounds

H₂O is most accurately described as a ___________________.

• molecule

• compound

• element

• atom

Tags

NGSS.MS-PS1-1

Which of the following is the most accurate statement?

• everything is both a molecule and a compound

• nothing can be both a molecule and a compound

• all compounds are also molecules

• All molecules are also compounds

Tags

NGSS.MS-PS1-1

Which vocabulary words can be used to describe this image? (check all that apply)

• molecule

• compound

• element

• atom

Tags

NGSS.MS-PS1-1

Oxygen, Nitrogen, Hydrogen, and Calcium are all examples of ______________________.

• molecules

• compounds

• atoms

• elements

Tags

NGSS.MS-PS1-1

Which one of the following is a compound?

• NaCl

• O2

• Hydrogen

• He2

Tags

NGSS.MS-PS1-1

Molecules and compounds are created when multiple atoms bond together, but how are they different?

• Compounds have to have atoms from different elements bonded together

• Molecules have to have atoms from different elements bonded together

• They are the same and there is no difference

• Molecules are building blocks of compounds

Tags

NGSS.MS-PS1-1

Which of these models can be described as a compound?

• water

• carbon dioxide

• amonia

• methane

• All of them are compounds

Tags

NGSS.MS-PS1-1

Which of the following is different from the rest of the group? (choose the answer that best applies)

Nitrous Oxide (N₂O)

Ozone (O₃)

Carbon Dioxide (CO₂)

Dihydrogen Monoxide (H₂O)

• Ozone (O₃)

• Nitrous Oxide (N₂O)

• Carbon Dioxide (CO₂)

• Dihydrogen Monoxide (H₂O)

Tags

NGSS.MS-PS1-1

How many protons?

Tags

NGSS.MS-PS1-1

Element or Compound

Copper (Cu)

• element

• compound