Pure substances and mixtures

Matter is divided in two groups.

• Elements and compounds

• Pure substances and mixtures

Mixtures are divided in two groups.

• Homogeneous and heterogeneous

• Elements and compounds

Pure substances are divided in two groups.

• Elements and compounds

• Homogeneous and heterogeneous

Choose which are examples of elements.

• water, glucose, salt, and carbon dioxide

• hydrogen, oxygen, gold and silver

Choose the examples of compound.

• water, glucose, salt and carbon dioxide.

• Hydrogen, oxygen, gold, and silver.

Give an example of a homogeneous mixture.

• sulfur power with iron dust

• sugar and water

Give an example of a heterogeneous mixture.

• sulfur powder with iron dust

• sugar and water

The elements listed in the periodic table are considered pure substances.

• True

• False