Ionic Substances And Naming
What is an ionic substance? How is it named?
- 1.What type of atoms (or ions) will form an ionic substance?
- A.
Two non-metals
- B.
Two metals
- C.
A metal ion and a non-metal ion
- 2.What do the subscripts mean in a chemical formula? Example H2O
- A.
The subscript indicates the charge of the substance
- B.
The subscript indicates the number of atoms of each type that form the substance
- C.
The subscript indicates the location on the periodic table
- 3.What type of ion do metals form?
- A.
Metals form positive cations. Example Na 1+
- B.
Metals form postiive anions. Example: Na 1+
- C.
Metals form negative anions. Example: Na1-
- 4.Why are there 2 hydrogen and only 1 oxygen in water (H2O)?
- A.
Each hydrogen ion has a charge of 1+. This will balance the charge of 2- from the one oxygen ion
- B.
Each hydrogen has a charge of 2+ and the oxygen has a charge of 1-
- C.
The two hydrogen molecules have a combined charge of 2+ and the oxygen has a charge of 1-
- 5.What type of bonds do salts form?
- A.
Salts are made up of two non-metals and form a covalent bond.
- B.
Salts are made up of a metal and non-metal and form an ionic bond.
- 6.Compare the strength of an ionic bond to that of a covalent bond.
- A.
An ionic bond is very strong and therefore the substance will have a high melting and boiling point.
- B.
An ionic bond is weak and will have a low melting and boiling point
- 7.Which of the following is the correct name for MgCl2?
- A.
Magnesium chloride
- B.
Magnesium (I) chloride
- C.
Magnesium (II) chloride
- 8.What is the correct name for FeBr3?
- A.
Iron (I) bromide
- B.
Iron (III) bromide
- C.
Iron Bromide (III)
- D.
Iron Bromide
- 9.What is correct formula for Calcium ion combined with a phosphate ion?
- A.
Ca3(PO4)2
- B.
CaPO4
- C.
CaP
- D.
Ca2(PO4)3
- 10.What is the chemical formula for Potassium sulfate?
- A.
K(SO4)2
- B.
KSO4
- C.
K2SO4
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