CHEMICAL REACTIONS/ACIDS & BASES REVIEW

I MELT AN ICE CUBE WHAT KIND OF CHANGE IS THIS MODELLING?

• PHYSICAL

• CHEMICAL

WHEN I BURN WOOD FOR A FIRE WHAT KIND OF CHANGE IS THIS?

• PHYSICAL

• CHEMICAL

I DECIDE THAT I WANT TO STEAM COOK MY DUMPLINGS WHAT KIND OF CHANGE IS BEING MODELLED?

• PHYSICAL

• CHEMICAL

THROWING PLAYDOUGH AGAINST A WALL WOULD BE AN EXAMPLE OF A ________ CHANGE

SODIUM reacts with CHLORINE to form SODIUM CHLORIDE.
WHICH IS THE CORRECT WORDED EQUATION?

• Sodium + Chlorine -> Sodium Chloride

• Sodium + Chlorine = Sodium Chloride

• Sodium and Chlorine make Sodium Chlroide

COPPER SULPHATE reacts with NICKEL CHLORIDE to form COPPER CHLORIDE and NICKEL SULPHATE.

THE WORDED EQUATION IS: Copper Sulphate + Nickel Chloride -> ________ + Nickel Sulphate.

Fill in the missing product.

MAGNESIUM reacts with OXYGEN to produce MAGNESIUM OXIDE.

I conduct a reaction and at the end of the reaction it is cool to the touch.

Is it Endothermic or Exothermic?

• Endothermic

• Exothermic

I complete a reaction with the starting temperature of 28.6^OC.

The temperature at the end is: 38.9^OC.

Is this reaction Endothermic or Exothermic?

• Endothermic

• Exothermic

A reaction is safe to touch when it starts, but will burn you if grabbed straight after the reaction is completed.

Is this reaction Endothermic or Exothermic?

• Endothermic

• Exothermic