PLEASE EXPLAIN HOW/WHY THESE ANSWERS ARE CORRECT! 1. When one molecule of Ca 3 (

ID: 706950 • Letter: P

Question

PLEASE EXPLAIN HOW/WHY THESE ANSWERS ARE CORRECT!

1. When one molecule of Ca3(PO4)2 dissolves in water, how many ions are produced? (Ans: 5)

2. What is the ionic charge of the Vanadium (V) ion in the compound V2O5? (Ans: +5)

3. Which one of the following behaves as an acid when it ionizes in water? (Ans: A)

a. CH3CO2H

b. NaOH

c. NH3

d. CH4

4. Identify the anion in the compound Ca(IO3)2 (Ans: E)

a. Ca2+

b. IO32-

c. I2O62-

d. O2-

e. IO31-

5. What is the charge of the Iodine ion in the Ca(IO3)2 compound? Iodine can have several charges. (Ans: +5)

Ans 1 :

The molecule of Ca3(PO4)2 when dissolves in water it dissociates into its constituent ions.

So each molecule has 3 calcium ions i.e. Ca2+ and two phosphate ions i.e. PO43-

Now the total ions in the molecule will be : 3 + 2 = 5 ions.

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