#1 Element vs Compound

Is sugar (C₁₂H₂₂O₁₁) an element or a compound?

• Element
• Compound

Tags

NGSS.MS-PS1-1

Is water (H₂O) an element or a compound?

• Element

• Compound

Tags

NGSS.MS-PS1-1

A compound consists of two or more elements bound together.

• True
• False

Tags

NGSS.MS-PS1-1

Is Iron (Fe) an element or a compound?

• Element
• Compound

Match the following

• pure compound

• 
• mixture of elements

• 
• mixture of compounds

• 
• pure element

• 
• mixture of elements and compounds

• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Elements only

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

• pure element

• heterogeneous mixture

• homogeneous mixture

• pure compound

Tags

NGSS.MS-PS1-1

• pure element

• heterogeneous mixture

• homogeneous mixture

• pure compound

Answer explanation

Because the atoms are all the same type of element, this is a diatomic element NOT a compound. Compounds require two different types of elements to combine.

Tags

NGSS.MS-PS1-1

compounds only

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃