Acids and bases Flashcards
In a chemical reaction what happens?
The atoms in the reactants are rearranged so that they make new substances called products.
In a chemical reaction no…
Atoms are gained or lost. They are just rearranged.
Hydrogen plus oxygen gives a
Water
When a metal reacts with an acid…
It makes a salt and hydrogen
What is a titration?
Where we very carefully and slowly neutralize an acid by adding an alkali in a controlled manner.
Many bases…
Are insoluble and don’t dissolve in water.
Name three atoms which react violently. Violentest to least violentest
Potassium
Sodium
Calcium
Name 4 atoms which react fairly well.
Violentest to less violentest.
Magnesium
Aluminum
Zinc
Iron
Name 4 atoms with little or no reaction.
Violentest to less violentest.
Lead
Copper
Silver
Gold
Heat out is
Exothermic
Heat in is
Endothermic
Bases are usually….
Metal oxides
Metal hyroxides
Metal carbonates
My squash analogy
More squash is more concentrated.
Super super concentrated is
Saturated
In a liquid there are gaps. If we keep adding more solute
To the solvent eventually there will be no space between solvent molecules.
