Chemistry Paper 1 Flashcards
How to do work out relative atomic mass (Ar or Mr)
The top number in the periodic table of an element
Why can metals conduct electricity
Electrons are delocalised to carry a charge through the metal
The electrons in the metal is freely moving and can flow
Electrons can carry a charge
The development of the atomic structure:
Johnn Dalton thought all mater was made of atom which he thought was tiny spheres that cannot divide
JJ Thompson discovered the electron and he created the plum pudding method
Ernest Rutherford designed an experiment to test Thompson’s theory out where positive aptly particles were fired at gold foil some went straight through but a few scattered and went in different directions so he created the nuclear model
What is a base
A base is a substance that can brutalise then acid by reacting with hydrogen ions
What is a compound
2 or more elements chemically combine
What is a mixture
Two or more events not chemically combine
OILRIG of electrons
Oxidation is loss of elections
Reduction is gain of electons
Test for hydrogen
Lighted splint makes squeaky pop
Test for oxygen
Glowing splint relights
Test for carbon dioxide
Bubble gas through like water, like water turns cloudy
Test for chlorine
Blue litmus turn bleached red when chlorine’s present
Test for water
Combat chloride paper turns blue to pink
Metal + acid forms
Salt + hydrogen
Metal oxide + acid forms
Salt + water
Metal carbonate +acid forms
Salt + water + carbon dioxide
