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04.04.2020 •
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For questions 18-21, use the information on Pages 590-592 and Page 567. In each space, classify the
reaction type.
18.
2LİBr + Pb(NO3) —
PbBr2 + 2LINO,
Fe + 2HC
FeCl2 + H2
Cap+H20 -
Ca(OH)2
NiCl ---
Ni+ Cla
SON
GH SCHOOL
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Ответ:
The answer; They used a stable isotope and tracked it with a Becquerel counter
An example of stable isotopes is 14-C and 2-H. These types of isotopes have an atomic decay that leaves less radioactive material behind, hence safe for laboratory use and used without harming the normal processes of life being investigated. Bq is the unit preferred for this type of radioactivity.