period 3 element reactions Flashcards
how does na react with water
recats violently with cold water
what is the observation for water and na
fizzes, move on surface of the water and burns with yellow flame
why does it move on the surface of the water
as it is less dense
what is the equation
na and h20 gives naoh and h2
how does naoh dissociate in water
very soluble so give ph of 14 very alkaline
what is the danger of h2
very flammable so can catch fire
how does mg react with water
reacts slowly with cold water
what is the observation
few bubbles
how does it dissociate
partially so form weak alkaline solution
why does it only parytialy dissociate
it has some covalent character
how does mg react with steam
readily to form magnesium oxide and hydrigen
what is the observation
white ppt and a bright white flame
what is the general trend when period 3 react with oxygen
they form oxides with highest oxidation states
how does sodium react with oxygen
vigorously producing a yellow flame and a white solid
how does magnesium react with oxygen
vigorously with white solid and a white flame
