1. What is the answer to these chemistry questions? a. In water, H 2 O, the tota
ID: 1005882 • Letter: 1
Question
1. What is the answer to these chemistry questions?
a. In water, H2O, the total number of groups on the central atom is ___________. (1, 2, 3, 4)?
b. In water the number of bonding groups on the central atom is ___________. (1, 2, 3, 4)?
c. In the hydronium ion, H3O+, the total number of groups on the central atom is ___________. (1, 2, 3, 4)?
d. In the hydronium ion, the number of bonding groups on the central atom is ____________. (1, 2, 3, 4)?
e. In ammonia, the number of bonding groups on the central atom is ______________. (1, 2, 3, 4)?
Explanation / Answer
Answer – We are given water as molecule and we know the formula for water is H2O. The central atom is the atom which is bonded with different or same groups. In the H2O there are 2 H and 1 O, so on the O there are2 H bonded and O gets the central atom, so there is only one central atom in this one. There are two H from the two bonds on the central O atom, so there are 2 bonding groups on the central atoms.
a) In water, H2O, the total number of groups on the central atom is 1.
b) In water the number of bonding groups on the central atom is 2.
In the hydronium ion H3O+ there are 3 H and 1 O, so the on the O there are 3 H bonded and O gets the central atom, so there is only one central atom in this one. There are three H from the three bonds on the central O atom, so there are 3 bonding groups on the central atoms.
c) In the hydronium ion, H3O+, the total number of groups on the central atom is 1.
d) In the hydronium ion, the number of bonding groups on the central atom is 3.
In the ammonia NH3 there is 3 H and 1 N. N is central atom and there are 3 H bonded with N, so there are 3 bonding groups on the central atoms.
e) In ammonia, the number of bonding groups on the central atom is 1.
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