Compounds and Molecules

A compound is

• A substance containing atoms of 2 or more elements

• An substance that undergoes a chemical reaction

• An atom that is broken or damaged

• An element that is not found on the periodic table

What is a molecule

• A part of the nucleus of an atom

• When elements interact with each other

• The smallest particle of a compound

• A giant atom

which are examples of compounds

• Salt

• Water

• Oxygen

• Iron

Rust is a result of

• Atoms breaking away from compounds

• When Iron is exposed to oxygen

• When Sodium is exposed to Chloride

• When water molecules mix with metal

Living things can make their own compounds naturally

• True

• False

Which part of the compound H2O is considered the subscript

• The Hydrogen

• The Oxygen

• The 2

• The molecular diagram

What does it mean if a compound does not have a subscript?

• There are no elements present in the compound

• It has no molecules

• It is not a compound

• There is just one atom of that element in a compound

H2 + O = H20 is an example of

• Atomic mass equation

• An atomic structure

• A chemical formula

• A quadratic equation

What is the formula for a compound containing two atoms of aluminum and three atoms of sulfur?

• Al3S2

• Al2S3

• AlS5

• 2Al3S

Looking at the molecule, what would be its chemical formula?

• CH4

• C4H

• 1C4H

• Mathane5