Middle and Chemistry

Which of the following is an element?

• Water

• Oxygen

• Fire

• Carbondioxide

Which TWO drawings represent an element?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Which substance is a compound?

• Salt Water

• Hydrogen (H₂)

• Salt (NaCl)

• Orange Juice

Tags

NGSS.MS-PS1-5

Which drawing shows a single compound?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-1

Which item on this element square is the chemical symbol?

• Copper

• 29

• Cu

• 63.546

How many valence electrons does Potassium Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

How many valence electrons does Silicon Have?

• 1 Valence electron

• 2 Valence electron

• 3 Valence electron

• 4 Valence electron

• 5 Valence electron

Tags

NGSS.MS-PS1-1

Made up of only 1 type of atom

• Compound

• Molecule

• Element

• Mixture

Tags

NGSS.MS-PS1-1

This shows a table salt molecule. What is it?

• compound

• element

• mixture

Tags

NGSS.MS-PS1-1

An element is

• Made up of different types of atoms

• Made up of the same type of atoms

• none of the above

• all of the above

Tags

NGSS.MS-PS1-1