.Which of the following describes an ionic compound dissolved in water? the part
ID: 542029 • Letter: #
Question
.Which of the following describes an ionic compound dissolved in water?
the partial negative ends of water molecules surround the anions & the partial positive ends of water molecules surround the cations.
the partial negative ends of water molecules surround the negative ions & the partial positive ends of water molecules surround the positive ions.
the partial negative ends of water molecules surround both the cations and anions.
None of these are correct
2. Butane has the molecular formula C4H10. What is the predominant intermolecular force of attraction between butane molecules?
London forces
Dipole-dipole forces
Hydrogen bonding forces
Ion-dipole force
3. Which of the following statements is (are) correct?
A molecule that contains only nonpolar bonds can be polar.
A molecule that contains all polar bonds must be polar.
A molecular that contains four total ‘electron sets’ around the only central atom of which two are lone pairs and the other two are polar bonds must be polar.
A molecule that contains two ‘electron sets’ around the central atom, has no lone pairs and 2 identical polar bonds must be polar
4. Which of the following is involved when calcium reacts with sulfur? Select all that apply.
There is a unequal sharing of electrons between calcium and sulfur.
Calcium transfers electrons to sulfur.
Sulfur transfers electrons to calcium.
Calcium loses 2 electrons and sulfur gains 2 electrons.
There is an equal sharing of electrons between calcium and sulfur.
5. Which of the following compounds would contain polar covalent bonds? Select all that apply.
NCl3
CsF
SO2
NH3
6.When two atoms with very similar electronegativities form a bond, the type of bond formed is which of the following?
Nonpolar covalent bond
Polar covalent bond
Ionic bond
Coordinate covalent bond
None of these bond types
.
NCl3
CsF
SO2
NH3
Explanation / Answer
Ans 1 : None of these are correct
When an ionic compound is dissolved in water , it dissociates into positive ions called cations and negative ions called as anions.
Since opposite charges attract each other so the negative oxygen ends of the water molecules will surround the postive cations and positive hydrogen ends of water will surround the negative anions.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.