Module #5 - vocabulary

Question 1

Decomposition Reaction

Answer 1

A reaction that changes a compound into its constituent elements.

Question 2

Formation Reaction

Answer 2

A reaction that starts with two or more elements and produces one compound.

Question 3

Complete combustion reaction

Answer 3

A reaction in which O2 is added to a compound containing carbon and hydrogen, producing CO2 and H2O.

Question 4

Incomplete Combustion Reaction

Answer 4

When a substance containing carbon and hydrogen burns in an environment where there is limited oxygen. Carbon dioxide is not produced; instead, either carbon monoxide or just plain carbon is produced.

Question 5

Atomic Number

Answer 5

The number that appears above the atomic symbol on the Periodic Chart. It is equal to the number of protons in the element.

Question 6

Atomic Mass

Answer 6

The number that appears below the atomic symbol in the Periodic Table. It tells how heavy the atoms is in a unit called “amu”. It also tells you how many grams it takes to have one mole of those types of atoms.