16, 19
19,8,5,9, 8.
15. Determine the modal class of the following frequency distribution:
CI
0-10
10-20
20-30
30-40
40-50
f
5
10
12
7
10
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Answer:
Substitution reaction, any of a class of chemical reactions in which an atom, ion, or group of atoms or ions in a molecule is replaced by another atom, ion, or group.
Step-by-step explanation:
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