Unit 3 Flashcards
Where are metals found on the periodic table
Left hand side
What are the properties of metals
Sonorous Shiny Conducts electricity and heat Malleable Ductile Strong
What is metallic bonding
Electrostatic force of attraction between positively charged ions and delocalised electrons
What happens when potassium is reacted with water
Purple flames , gassed, pops
What happens in a reaction wiry copper ans acid
Nothing- no reaction
How can salts be prepared
By reacting metals and acids
What gives a soluble salt
Adding excess metal to an acid and filtering the residue , will give a solution of a soluble salt
What happens to magnesium when reacted with oxygen
Bright white light
What is OIL RIG
Oxidation Is Loss of electrons
Reduction Is Gain of electrons
What is a redox reaction
When oxidation and reductions takes place
How do u make a redox equation
Add all the equations for oxidation and reduction together
What is copper extracted by
Carbon
What is electrolysis
Breaking down a compound using electrolysis day
Definition of ion bridge
The role of the ion bridge is to completely the circuit it needs to be absorbent
What is a fuel cell
An electrochemical cell that produce electricity by combing a fuel eg hydrogen , with oxygen withought burning it
What are advantages of the hydrogen fuel cells
The only waste product is water
Hydrogen is readily available
Oxygen comes from the air
Definition of monomers
The simple molecules from which polymers are made
Definition is polymer
a large molecule made by reacting many small molecules together (monomers)
Definition of polymerisation
The reaction in which monomers join together to form polymers
Properties of ammonia
Invisible gas
Pungent smell
Very soluble in water
Alkaline gas
What is ammonia and nitric acid used for
To produce nitrates for fertilisers
What process is ammonia made from for fertilisers
Haber process
What makes ammonia , through the haber process
Nitrogen ans hydrogen and an iron catalyst
What is produced from the Ostwald process
Nitric acid
What is used to make nitric acid
Ammonia , oxygen and water
Platinum catalyst is used
What does IHOP stand for
Iron -Haber
Ostwald- Platinum
Everyday objects that are radioactive
Rocks
Beer
Bananas
Teeth caps
What are the types of radiation
Alpha
Beta
Gamma
What stops alpha from travelling
Can be stopped by your hand , and will only travel a few cm in the air
What stops beta from travelling
Beta will travel further than alpha and can be stopped by aluminium
What strips gamma rays from travelling
Travel far and will only be stopped by thick sheets of lead
What is alpha deflected away from
The positive , as it has a positive nucleus
What is beta deflected away from
The negative electrode Asia it is similar to an electron
Are gamma rays deflect of anything
No
What is an alpha particle identical to
The nucleus of a helium atom (which compares two protons ans two neutrons )
What does beta radiation consist of
High energy electrons emitted from the electron shells
What type is radiation is a gamma radiation
Very short wavelength-High frequency-electromagnetic radiation
