This document is a PowerPoint presentation about chemical reactions. It discusses different types of chemical reactions like combustion reactions, which produce heat or heat and light. It explains that oxygen, heat, and fuel make up the "fire triangle" and are needed to create fire. Activation energy is the minimum amount of energy needed to start a chemical reaction. Examples like the cooktop stove and combustion engines in cars are provided to illustrate the fire triangle and chemical reactions.
2. Chemical Reactions
Production of light
Production of heat
Condensation
Precipitation
Changing color
Changing taste
http://www.answers.com/topic/chemical-reaction
3. What is a Combustion Reaction
• A combustion reaction
takes place when a fuel
and an oxidant react,
producing heat or heat
and light. The most
common form of
combustion reaction is
when heat flames, with
explosions being an
even faster form of http://library.thinkquest.org/2923/react.html
combustion reaction.
4. Fire Triangle
Oxygen, heat, and fuel are
frequently referred to as the
"fire triangle.“
When they are all added
together they create fire and
combust together.
http://www.answers.com/topic/chemical-reaction
5. Activation Energy
• Minimum amount of energy (heat,
electromagnetic radiation, or electrical
energy) needed to activate atoms or
molecules to have a chemical reaction.
• http://www.answers.com/topic/activation-energy
6. Why is Heat a Necessary Part
of The Fire Triangle
• Solids give off flammable vapours by being
heated. Certain solids such as paper or flour
appear to ignite almost instantly. This is because
they give off vapours and reach a flammable
temperature almost immediately.
• http://www.hantsfire.gov.uk/kids/learn/firetriangle.html
7. The Cooktop of the Stove is an
Example of a Fire Triangle
• It is heated by propane or natural gas, which is
fueled by a pilot light that stays lit at all times
• http://www.ehow.com/how-does_4609192_a-cooktop-
work.html
8. What is a Combustion Engine
• An internal combustion engine is any
engine that operates by burning its fuel
inside the engine.
• http://inventors.about.com/library/inventors/blinternalcombustion.htm
9. How Does A Combustion
Engine Work
• A combustion engine works by burning the
gasoline inside an engine and creates a
combustion to make the engine work.
• http://www.howstuffworks.com/engine.html
10. How Are Nascar Engines Faster
Then Regular Cars
• Engines are subjected to multiple cycles of
extreme heat and pressure and. They're
engines are bigger, stronger and thicker than a
regular car.
• http://auto.howstuffworks.com/auto-racing/nascar/nascar-basics/nascar-
10
engines.htm/printable
11. How Does Nitrous Oxide Help
Cars Go Faster
• When you heat nitrous oxide to about 570 degrees it
splits into oxygen and nitrogen. So the injection of
nitrous oxide into an engine means that more oxygen is
available during combustion. Because you have more
oxygen, you can also inject more fuel, allowing the same
engine to produce more power to go faster
• http://auto.howstuffworks.com/question259.html
12. Cheating in NASCAR
• One way to cheat in a NASCAR race is to drill
wholes on the wheel wells and in the back to
make them more aerodynamic.
• http://www.slate.com/id/2159854/
