(a)
Interpretation:
The polyatomic anion in KBrO3 should be identified. The number of protons and electrons in the identified anion should be calculated.
Concept Introduction:
Charge of an ion:
The group number of a maingroup element can be used to determine the charge on an ion derived from that element:
For elements in groups 1A, 2A, and 3A, the group number is thecharge on the cations they make.For elements in groups 6A and 7A, the anion charge = 8 − (thegroup number).
Polyatomic ions:
A polyatomic ion is a cation or an anion that contains two or more atoms, which are bound through covalent bonds.
Ionic compounds:
Anions and cations are attracted to each other via ionic bonds and form ionic compounds. The overall charge of an ionic compounds is zero (sum of the charge of each ion involved must be zero).
(b)
Interpretation:
The polyatomic anion in CaHPO3 should be identified. The number of protons and electrons in the identified anion should be calculated.
Concept Introduction:
Charge of an ion:
The group number of a maingroup element can be used to determine the charge on an ion derived from that element:
For elements in groups 1A, 2A, and 3A, the group number is thecharge on the cations they make.For elements in groups 6A and 7A, the anion charge = 8 − (thegroup number).
Polyatomic ions:
A polyatomic ion is a cation or an anion that contains two or more atoms, which are bound through covalent bonds.
Ionic compounds:
Anions and cations are attracted to each other via ionic bonds and form ionic compounds. The overall charge of an ionic compounds is zero (sum of the charge of each ion involved must be zero).
(b)
Interpretation:
The polyatomic anion in CaHPO3 should be identified. The number of protons and electrons in the identified anion should be calculated.
Concept Introduction:
Charge of an ion:
The group number of a maingroup element can be used to determine the charge on an ion derived from that element:
For elements in groups 1A, 2A, and 3A, the group number is thecharge on the cations they make.For elements in groups 6A and 7A, the anion charge = 8 − (thegroup number).
Polyatomic ions:
A polyatomic ion is a cation or an anion that contains two or more atoms, which are bound through covalent bonds.
Ionic compounds:
Anions and cations are attracted to each other via ionic bonds and form ionic compounds. The overall charge of an ionic compounds is zero (sum of the charge of each ion involved must be zero).

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Chapter 3 Solutions
CONNECT IA GENERAL ORGANIC&BIO CHEMISTRY
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