End of term revision Flashcards
Where are metals found on the periodic table
On the right
Witch 3 set of properties do metals usually show
Hard malleable high melting point
What kind of bonding does iron have
Metallic
What properties makes copper good for electric wiring
They are good conductors of electricity
What happenes to the outer electrons in the metallic structure
They are delocalised
What are the 3 states of matter
Solid liquids and gasses
What is the salt called in saltwater
The solute
endothermic reactions
Absorbs energy /heat from surroundings
What are the new substances that are formed at the end of a reaction called
The product
What does the little number tell you in a formula
How many of each atom there are
What is the word equation for water
oxygen + hydrogen → water
What is the Symbol equation for water
O2 + 2H2 → 2H2O
Exothermic reactions
Takes in heat/energy from surroundings
if there isn’t enough oxygen around
Then incomplete combustion can happen