Chemistry · May / June 2021 · Paper 42 · Question 2
0620
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The question as text
Silver has an atomic number of 47. 10 109
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2(a)(i)[1]
isotopes
2(a)(ii)[3]
mark by row
107Ag
109Ag+
p
47
47
n
60
62
e
47
46
2(a)(iii)[3]
average / mean
12C
12
2(a)(iv)[1]
50(%)
2(b)[1]
HNO3
2(c)(i)[1]
yellow precipitate
2(c)(ii)[3]
Ag+(aq) + vI–(aq) → AgI(s)
AgI (as only product) (1)
Ag+ and I– (as only reactants) (1)
state symbols (1)
2(d)[2]
aluminium (1)
ammonia (1)
2(e)[1]
photochemical
2(f)(i)[1]
any named alkane
2(f)(ii)[2]
name of organic product derived from 2(f)(i) (1)
hydrogen chloride / HCl (1)
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