Qualification > Sciences

CHEMISTRY MCQ PAPER 1 ...HELP!

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IGSTUDENT:
November 1998 Q15.

Can someone pls explain

nid404:

--- Quote from: IGSTUDENT on June 10, 2009, 03:32:43 pm ---November 1998 Q15.

Can someone pls explain

--- End quote ---

I don't have the paper..can u put the paper up plz

Ghost Of Highbury:
or post the question here..

IGSTUDENT:
A chemical reaction between pieces of a solid and an acid is very fast
Which changes would make the reaction slower?

   pieces of solid             acid
A smaller                      less concentrated
B smaller                      more concentrated
C larger                        less concentrated
D larger                        more concentrated

Ghost Of Highbury:
C..

larger surface area and less concentration of the acid would decrease the rate of recation

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