Y8 chem T2-Periodic Table + Metals Flashcards
Where are metals usually found?
In the ground
What can metals react with?
They can react with the substances and the environment around them Such as air water and acids
in a word equation, what are the chemicals called that was that you start with and end with?
you start with the reactants and you end with the products
How can a equation be balanced?
By putting numbers in front of the formulas, you cannot change the actual formula itself
Put these in most reactive to least reactive:
Lithium,calcium, zinc, iron magnesium, silver,sodium, gold,potassium, copper.
Potassium, sodium, lithium, calcium, magnesium, zinc, iron,
copper, silver,gold
How can the reactivity of metals be compared?
By the observations of their reactions with acid
What is the metal and acid equation?
Metal plus acid ➡️salt plus hydrogen
What is oxidation?
adding oxygen to an equation
What is reduction
Taking away oxygen from an equation
What’s another word for group 1 metals?
Alkali metals
Where would you find metals on the periodic table?
left n middle
The properties of non-metals?
-liquid/gas
-light
-insulator
-brittle
finish the equation:
metal + acid➡️
➡️salt + hydrogen
On the periodic table,are group 1 metals more reactive going up or down?
They are more reactive the further down they go
What is the easiest metal to melt and recycle?
aluminium
what are some unreactive metals
gold n silver
Why recycle metals?
-It’s finite
what is polymers?
Long chain of molecules that make up plastics(easily shaped)
What are Ceramics?
hard,durable materials made from soft materials which had been heated
What are composites?
They are designed for specific uses are made up of two or more materials
Name the process of recycling
separated,melted,moulded,reused
when metals are found in the ground what state are they found in?
as metal oxides which need to be extracted to create the metal
how is aluminium separated from aluminium oxide?
by electrolysis
Finish this equation(reduction)
copper oxide + carbon➡️
➡️copper+carbon dioxide