9th Science exam

It is the process in which one or more substances are transformed into one product

• Chemical Equations

• Periodic table

• Chemical Reactions

He organized the elements formin a helix or spiral according to their properties

• Antoine Looisier

• Alexander de Chancourtois

• John Newlands

In the types of materials in what group below organic

• By its origin

• By its compositions

• By its physical state

It is the smallest particle of a simple or compound substance that maintains the specific chemical properties of the substances.

It is the smallest portion of an element that retains its characteristic.

• Atoms

• Chemical elements

• Acid formations

They are chemical that results from the combination of a base and an acid

Are graphic representations of chemical reaction

• Chemical Reaction

• Chemical equations

• Periodic table

Write here three types of chemical reactions

This is one element of the periodic table

• Ck

• Cl

• Ac

The symbol for oxygen is