Chap 3-Exploring Diversity of Matters by its Chemical Composition

The following are examples of element(s).

• Carbon dioxide

• Nitrogen

• Silver

• Copper

Periodic Table of elements are classified according to their properties.

• True

• False

Elements can be classified:

• by the state (@ rtp)

• by metals and non-metals

• by their appearance

• as in the periodic table (e.g. proton number/ group)

Elements in the same column are in the same group. They have similar chemical properties.

• True

• False

Elements in the same row are in the same period. They change from metallic properties (left) to non-metallic properties (right).

• True

• False

Compounds include:

• Water

• Oxygen

• Sugar

• Nitrogen dioxide

_____________ or ______________ is usually given out or taken in when compounds are formed.

• Water

• Light

• Heat

• Gas

A mixture consist of two or more pure substances which are chemically combined together.

• True

• False

A ________________ is the substance that dissolves in a solvent.

• solution

• residue

• filtrate

• solute

A ________________ is the mixture of the solute and solvent.

• filtrate

• residue

• suspension

• solution