Atoms, Compounds, and Elements

Front

Is sugar (C₁₂H₂₂O₁₁) an element or a compound?

Back

Compound

Front

Which of the following is not a compound? Options: HCl, Cl, NaCl, CO2

Back

Cl

Front

What cannot be broken down into other substances?

Back

Element

Front

Look carefully at the following chemical formulas: CaCO₃ NaHCO₃ MgSO₄ How many different elements are shown in these three formulas?

Back

7

Front

What is the difference between the substances represented by the symbols Co and CO?

Back

One is the symbol for an element, and one is a formula for a compound.

Front

Acetaldehyde (C2H4O)

Back

Compound

Front

Acetamide (C2H5NO)

Back

Compound

Front

Acetic acid (CH3COOH)

Back

Compound

Front

Acetone (C3H6O)

Back

Compound

Front

Acetonitrile (C2H3N)

Back

Compound