....... are the substances made up of one kind of atoms

• Elements

• Molecules

• Compounds

...... are the substances made up of different kind of atoms

• Elements

• Compounds

• Molecules

When two or more atoms combine together whether same or different kind, this is ....

• Elements

• Compounds

• Molecules

Acetic acid formula (CH3COOH) is made up of how many atoms?

• 4 atoms

• 6 atoms

• 8 atoms

• 3 atoms

Acetic Acid formula ( CH3COOH) has how many elements?

• 2 elements

• 3 elements

• 6 elements

• 8 elements

Pure substances are classified as ....

• Elements and compounds

• Homogenous and heterogeneous

Mixtures are classified as ....

• Elements and compounds

• Homogenous and heterogeneous

........... are made up of more than one substance with uniform composition

• Heterogeneous mixtures

• Elements

• Compounds

• Homogeneous mixtures

....... are examples for homogenous mixtures

• Sand in water

• Mud in water

• Salad

• Sugar in water

....... are examples for heterogeneous mixtures

• Sand in water

• Mud in water

• Salad

• All the choices are correct