Combustion
What 3 things are required to make a fire? (Fire triangle)
Oxygen, fuel and heat
Is sodium carbonate soluble or insoluble? How do you know?
Soluble, all carbonates are insoluble except for sodium carbonate (and potassium carbonate)
What is a chemical called with lots of H+ ions?
What is a chemical called with lots of OH- ions?
H+ ions = acid
OH- ions = base
Complete the reaction...
Fe + CuSO4 -> ________ + _________
Fe + CuSO4 -> FeSO4 + Cu
What is a combustion reaction?
What is a precipitate and what does it look like in a reaction?
Precipitate is the produce that is insoluble. It looks like a solid in the test tube.
What color would each of these chemicals make if added to universal indicator?
a) pH = 2
b) pH = 7
c) pH = 13
a) red (acid)
b) green (neutral)
c) blue/purple (base)
Zn + CuSO4 -> ZnSO4 + Cu
_____ is displacing ______ because it is more ______.
Zinc is displacing Copper because it is more reactive.