Energy and Matter

Question 1

ENERGY:

Combustion is the scientific word for _______

Answer 1

Burning

Question 2

In a combustion reaction a substance reacts with ______ from the ___ and transfers energy to the surroundings as light and heat.

Answer 2

1. Oxygen

2. Air

Question 3

The products of a combustion reaction are called _______.

Answer 3

Oxides

Question 4

The chemical equation for combustion is:

Answer 4

CH4+02—->CO2+H2O

Question 5

One important combustion reaction is that of _______. Methane reacts with oxygen from the air and produces either a ___ ____

Answer 5

1. Methane
2. Hot blue
3. Orange