Acid And Metals Flashcards
Oder reactivity of metals
Highest to lowest
Magnesium
Aluminium
Zinc
Iron
Tin
Copper
What’s the observation of magnesium in a reaction with oxygen
Very bright and white glow
What’s the observation of zinc in a reaction with oxygen
yellow white glow
What’s the observation of copper in a reaction with oxygen
Dull ref glow
What is the pH scale indicate
The hydrogen ion concentration
What does a neutral solution has equal concentration of what
has equal concentration of H+(aq) and OH- (aq ions
What does a acidic concentration be like
Higher concentration of hydrogen ion and a lower concentration of hydroxide ions
What is metallic bonding
Electrostatic attraction between positive ions and delocalised electrons
Reaction of metals
Metal + oxygen > metal oxide
Metal + water > metal hydroxide + hydrogen
Metal + dilute acid
Metal can be arranged…
In order of reactivity by comparing the rates at which they react
Metals can be
Metals can be used to produce soluble salt
Excess metal is added….
Excess metal is added to the appropriate acid, the mixture is filtered and the filtrate evaporated to dryness
What are called bases
Metal oxides metal hydroxide metal carbonated and ammonia
What does hydrochloric acid produce
Chlorides
Sulufric acid produces
Slate
