Chemical Reactions Flashcards
Oxidation
the loss of elections from a substance and the gain of oxygen by a substance
Reduction
the gain of elections for a substance and the loss of oxygen by a substance
Conservation of Mass
the law that states that the mass of products being reacted stays the same before and after
Ionic equation
an equation representing all ions that actively take part in a chemical reaction
Amount of substance
Avogadro’s number x number of moles
Number of moles
mass/Mr
OIL RIG
Oxidation is loss
Reduction is gain
Redox reaction
A reaction where reduction and oxidation happen a the same time
Displacement
When the more reactive metal pushes out (displaces) the less reactive metal
Thermal decomposition
a chemical reaction that happens when a compound breaks down when heated.
How to find concentration(mol/dm^3)using moles
Moles/volume
How do you test for carbon dioxide?
If limewater (calcium hydroxide) turns milky this means that carbon dioxide is present
How do you test for hydrogen?
If a lighted splint near the mouth of a test tube ignited with a squeaky pop
How do you test for oxygen?
If a glowing splint relights when held inside a test tube
