compounds

How many elements are represented in the compound?
Na₂CO₃

• 1
• 2
• 3
• 4

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Can compounds be found in the periodic table?

• Yes
• No

How many carbon atom/s are present in the compounds CaCO₃?

• 1
• 2
• 3
• 4

Element is a

• pure substance
• compound
• mixture
• molecule

How many elements are in HHe

• 3
• 4
• 2
• 5

What does the element AI stand for ?

• Gold
• Actinium
• Iron
• Aluminum

Is salt (NaCI) a compound or a element

• Compound
• element

which one can be found on the periodic table

• Compound 
• Element

What does the C represent?

• atomic mass
• atomic number
• element name
• chemical symbol