acids & alkalis & chemical reactions
A solution with a pH lower than 7
A solution with a PH higher than 7
A substance which dissolves in water to produce a solution with a pH higher than 7
A substance that destroys living tissues on contact
a substance that can cause blistering or redness of the skin
An indicator made from lichens
Blue litmus turns this colour in the presence of an acid
A solution with a pH of 7
A number scale that measures the strength of acids or alkalis
An indicator that changes colour to show whether a solution is neutral, acid or alkali
Hydrochloric is an acid or an alkali?
Sodium hydroxide is an acid or an alkali
Soap is an acid or an alkali?
Lemon juice is an acid or an alkali?
a change which makes a new substance, e.g. coal burning
a change in which no new substance is made. The substance just changes to a different state, e.g. water boilingPhysical
the reacton when oxygen is added too a substance
the reaction which occurs when a substance burns in oxygen giving out heat energy
a substance made when an acid and a base react together
. A salt
when one element takes the place of another in a compound
solid that is disolved to form a solution
mixture of solute and solvent
solution where the solvent is water
a solute that cannot be disolved
capable of being dissolved in a solvent
a change which can be changed back to its original form.
a change which cannot be changed back from it's original form.