TOPIC - 5 Acid Spill!1!1! Flashcards
metal compounds that can neutralise an acid
hydroxides, oxides and carbonates.
acids contain
H+ (aq)
acids are
corrosive and can breakdown lots of materials.
what is formed when an acid is neutralised
a salt.
a titration is used to find
the unknown concentration of an acid or an alkali
electrolysis of an acid always produces
hydrogen gas at the negative electrode
neutralisation is a reaction that
decreases the hydrogen ion concentration
what is used to determine whether something is an acid, alkali or neutral
universal indicator
some common acids are made by dissolving
non-metal oxides in water
when ____ of ____, _____ and _____ dissolve in water in the atmosphere they form ________.
when OXIDES of CARBON, SULFUR and NITROGEN dissolve in water in the atmosphere they form ACID RAIN.
soluble non-metal oxides form
acids
soluble metal oxides form
alkalis
common: hydrochloric acid
HCl
common: sulphuric acid
H₂SO₄
common: nitric acid
HNO₃
common: sodium hydroxide
NaOH
common: ammonium hydroxide
NH₄OH
common: calcium hydroxide
Ca(OH)₂
insoluble oxides are
neutral
all acidic solutions are
ionic
all acids contain
hydrogen
ph is dependent on the
concentration of hydrogen ions in a solution
when water dissociates it forms an
equal amount of hydrogen ions and hydroxide ions so the pH is 7
acids are solutions containing what concentration of hydrogen and hydroxide ions?
more hydrogen ions than hydroxide ions
alkalis are solutions containing what concentration of hydrogen and hydroxide ions?
more hydroxide ions than hydrogen ions
water is a solution containing what concentration of hydrogen and hydroxide ions?
equal concentration of hydrogen ions and hydroxide ions
all acids can be corrosive if
they are concentrated enough
when an acid is neutralised by a base what is always formed
a salt and water
when an acid is neutralised by a metal carbonate base what is always formed
a salt and water and carbon dioxide
spectator ions
are ions that are present at both the start and end of a reaction and dont change state
titration equation
PVC (acid) = PVC (alkali)
titrations can be used to find
the unknown concentration of an acid