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How'd the papers go??? (2013) CIE O/A level

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t
he options were
A)1 and 2
B)2 and 3
C)3 and 4
D) 1 and 4
which are the correcr properties for a metal M whose atomc no is 21-30???
well according to the options u gave me b4.... 1 , 3 and 4.... definitely not 2
 
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u know that question in which u had to say higher than, equal to etc ............ what was the answer?
And in the other question with the diagram, what was gas Z??
yeah, 1 was %age by mass was higher m moles were equal
and gas Z was nitrogen :p
 
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