Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
jellybeans:
--- Quote from: A@di on June 05, 2010, 12:30:06 pm ---As a general rule, if a metal reacts with cold water, you get the metal hydroxide. If it reacts with steam, the metal oxide is formed. This is because the metal hydroxides thermally decompose (split up on heating) to give the oxide and water.
Though, there are some who dont form oxides at all, only hydroxides
--- End quote ---
so lets say they give you a question liek
Both metals react with water
i) Write a word equation for the reaction of zinc and water and state the reaction conditions
ii) Write an equation for the reaction of strontium with water and give the reaction condition.
:o
how do we know if it's gonna make oxides/hydroxides?
nid404:
Both would form hydroxides in cold water.
Although Zinc would have a slower reaction since it's less reactive compared to Strontium.
username:
wouldnt zinc be in steam???
nid404:
--- Quote from: furqan on June 05, 2010, 12:39:11 pm ---wouldnt zinc be in steam???
--- End quote ---
It would form oxide with steam
username:
wud this hav 2 do sumthin with the reactivity series???
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version