CHEM3.4 Element & Compounds

A pure substance that cannot be separated into simpler substances by chemical or physical means.  

• Element
• Compound
• Mixture
• Chemical

What is a compound?

• an atom with more electrons than protons
• a substance in which the atoms of two or more elements are combined together
• an atom with more neutrons than protons
• a substance in which the atoms of three or more elements are combined together

Tags

NGSS.MS-PS1-1

The properties of the elements that make up a compound are usually very similar to the compound itself.

• True
• False

When elements form mixtures, the elements keep their original properties. 

• True
• False

Is Iron (Fe) an element or a compound?

• Element
• Compound

Tags

NGSS.MS-PS1-1

Is sugar (C₁₂H₂₂O₁₁) an element or a compound?

• Element
• Compound

Tags

NGSS.MS-PS1-1

How would you best classify air?

• Element

• Compound

• Heterogeneous mixture

• Homogeneous mixture (solution

How would you classify raisin bread?

• Element

• Compound

• Heterogeneous mixture

• Homogeneous mixture (solution)

How would you classify carbon dioxide (CO₂)?

• Element

• Compound

• Heterogeneous mixture

• Homogeneous mixture (solution

• element
• compound
• mixture of elements
• mixture of compounds

Tags

NGSS.MS-PS1-1