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Science 2010 SCR

Revision of Simple Chemical Reactions

QuestionAnswer
Acid+Metal= Hydrogen
Acid+Carbonate= Carbon Dioxide
What is formed when materials burn? Oxides
A Hydrocarbon is? Anything that burns
What 2 substances are formed when hydrocarbons burn? Carbon Dioxide and Water
Give an exmple of a word equation Iron+Oxigen=Iron Oxide
Is burning reversible or irreversible? Irreversible
Inflammable Easy to catch fire
Flammable Easy to catch fire
Non-flammable Will not catch fire
Incomplete burning produces a highly dangerous and poisonous gas called... Carbon Monoxide
How can you remove the heat from the Fire Triangle?Give 2 examples Water thrown on fire.(Unless it is an oil. petrol or electric fire.Because the water will bounce back boiling hot)Or sand thrown on the fire.
How can you remove the oxygen from the Fire Triangle?Give 2 reasons A non-flammable blanket will smother the fire.Or a Carbon Dioxide Extinguisher.Sprayed at the fire.This will create an invisable blanket.
Hydrogen is the ........ gas.It has a ... density.It is lighter than ... and used to be used for balloons and airships. Lightest Low Air
Chemical reactions are .......... Chemical reactions cause ...... changes, ....... appearing and ........... changes. Irreversible Colour Temperature
What is the test for hydrogen gas? Squeky pop from splint
What is the test for carbon dioxide gas? Carbon Dioxide turns lime water milky
A Hydrocarbon is? Anything that burns
What 2 substances are formed when hydrocarbons burn? Carbon Dioxide and Water
Another name for burning is? Combustion
What fraction of air is oxygen? 1/5
What are the three things that make the Fire Triangle? Fuel,Oxygen and Heat
How can you remove the heat from the Fire Triangle?Give 2 examples Water thrown on fire.(Unless it is an oil. petrol or electric fire.Because the water will bounce back boiling hot)Or sand thrown on the fire.
How can you remove the oxygen from the Fire Triangle?Give 2 reasons A non-flammable blanket will smother the fire.Or a Carbon Dioxide Extinguisher.Sprayed at the fire.This will create an invisable blanket.
Hydrogen is the ........ gas.It has a ... density.It is lighter than ... and used to be used for balloons and airships. Lightest Low Air
What is the test for Oxygen? Pure Oxygen relights a glowing splint
Phisical changes are .......... and can go back to thier original form. Reversible
Acid+Alkali= Salt+Water
Created by: bookcase