Qualification > Sciences
Chemistry paper 1 help
haris94:
welcome :)
contraentry:
is there anything for Acid + Salt ?
haris94:
Most salts are ionic, formed by strong base and acid, and are almost indestructible, so I guess nothing will happen
On the other hand, acid MAY dissolve part some insoluble salt (like carbonates)
However, what happen mostly depend on the acid that make the salt. If it is weak (like H2CO3), the salt are dissolve by the stronger acid (carbonates make bubbles when dropped into HCl, for example).
Salt from strong acid doesn't react, even when put into an another strong acid (like BaSO4 doesn't dissolve in water)
red_911:
i need help in 0620/01/M/J/07 question 31..plzz explain ...
Thanks in advance...
Dark Prince:
i hve a few Qs......
1) Are metal oxides more reactive dan metals demselves......eg copper oxide???
2)some1 in this forum said da 2 anions NO3 is below OH in reactivity.....but in da (chem)guide it has been mentiond above OH??
3)can some1 answer this Q again plzzz....
Q...If lead is above hydrogen in the reactivity series then why is lead formed instead of hydrogen in the electrolysis of aqueous lead nitrate ???
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