Elements and Compounds 6.5A

How many elements are found in the compound below?

NaHCO₃

• 6

• 5

• 4

• 3

Check a box for each element that is found in the chemical formula below:

NaHCO₃

• Hydrogen

• Sodium

• Carbon

• Cobalt

• Oxygen

____________ is an element that is found in ALL of the chemical formulas listed below:

H₂0

C₆H₁₂O₆

CH₄

Which of the following is representative of an element?

• H₂0

• CH₄

• CO₂

• Na

Which of the following is a compound?

• Co

• CO₂

• Na

• H

Check the boxes of ALL of the statements that are true about the following examples:

H

C

O

Na

He

N

• All of the above are pure substances

• All of the above are compounds

• All of the above are elements

• All of the above are found on the periodic table

• All of the above contain two or more elements that have combined

Check the boxes of ALL of the statements that are true about the following examples:

C₂H₆

CO₂

H₂O

LiF

NaHCO₃

• All of the above are elements

• All of the above are compounds

• All of the above are found on the periodic table

• All of the above are pure substances

• All of the above contain two or more substances that have combined

Which of the following is an element?

• Sugar
• Salt
• Water
• Oxygen

This is made up of one or more of the SAME kind of atom

• Element

• Mixture

• Compound

• Matter

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

• Element
• Compound
• Mixture
• Chemical