Section 4 - Fuels Flashcards
(7 cards)
What is a physical change?
A physical change is a transformation that alters the appearance or form of a substance but does not change its chemical composition.
What is a Chemical Change?
A chemical change, also known as a chemical reaction, is a process where one or more substances are transformed into new substances with different properties.
Burning Hydrocarbons is where…
Burning hydrocarbons, also known as combustion reactions, involves the chemical reaction between a hydrocarbon and oxygen, producing heat and light.
What is complete combustion?
Complete combustion is where the entire fire triangle is present so the fire can burn. Fire Triangle: Oxygen, Heat, Fuel.
What is incomplete combustion?
Incomplete combustion is a type of burning that occurs when there isn’t enough oxygen available for a fuel to burn completely. Fire Triangle: Heat, fuel, oxygen.
What is the reaction of acid on metals?
When acids react with reactive metals, they produce a salt and hydrogen gas. This is a general reaction that can be represented as: metal + acid → salt + hydrogen. The hydrogen gas produced is often indicated by the bubbling of the reaction.
What is the reaction of acids on metal carbonates?
When acids react with metal carbonates, they produce a salt, water, and carbon dioxide gas. The general reaction is: acid + metal carbonate → salt + water + carbon dioxide.
