METALS AND METAL COMPOUNDS

METALS AND METAL COMPOUNDS

1. PROPERTIES OF METALS

   • APPERANCE
     • SHINY
       • REFLECT LIGHT
     • DULL
   • MELTING POINT
     • HIGH
       • MOST METALS HAVE HIGH MELTING POINTS
     • LOW
       • MERCURY
         • LIQUID AT ROOM TEPRETURE
   • STRENGTH
     • MALLUBLE
       • ANOTHER WORD FOR BENDY
     • STRONG USALLY
       • USED TO MAKE BRIDGES ETC.
   • MAGNETIC
   • COST
   • CONDUCTIVITY
     • HEAT
     • ELECTRICITY
       • COPPER WIRE

2. MAKING SALTS

   • FORMULA
     • ACID + METAL -> SALT + HYDROGEN
   • BASES
     • ALL ALKALIS ARE BASES
       • NOT ALL BASES ARE ALKALIS
     • OXIDES, HYDROXIDES AND CARBONATES
       • THESE ARE ALL BASES
       • EXAMPLES
         • MGO = MAGNESIUM OXIDE
         • CUCO3 = COPPER CARBONATE
         • CAOH2 = CALCIUM HYDROXIDE

3. THE PH SCALE

   • ACID AND ALKAIIES
     • ACIDS WERE ON THE LEFT
       • RED WAS A STRONG ACID
     • ALKALIES WERE ON THE RIGHT
       • A STRONG ALKALI WAS A DARK PURPLE
   • WE CAN USE UNVIVERSAL INDICATER TO TELL WHAT PH IT IS
     • THIS CAN COME AS TWO DIFFERENT FORMS
       • PAPER
       • LIQUID
     • ALTERNATLY WE CAN USE A PH MONITOR RIGGED UP TO A COMPUTER

4. ACIDS AND ALKALIES

   • MIXING TOGETHER CAUSES NUTERLISATION
     • ACID + ALKALI -> A SALT + WATER
       • WHEN NUETERLISATION TAKES PLACE YOU END UP WITH SALTY WATER
         • IF YOU EVAPERATED THE WATER YOU WOULD BE LEFT WITH SAT
     • IF YOU MIX AN ACID AND ALKALI THEY CANCEL EACH OTHER OUT
       • IT WOULD BE A NEUTERAL SUBSTANCE WITH A PH OF 7
     • THE ACID AND ALKALI MUST BE OF THE SAME STRENGTH AND AMOUNT

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