Ionic Formulas Quiz

What tools are necessary to write ionic formulas according to the video?

• A calculator and a ruler

• A periodic table and a polyatomic ion chart

• A dictionary and a thesaurus

• A computer and a printer

What is the charge of calcium in calcium oxide?

• -2

• +1

• +2

• -1

What is the general rule for placing elements in ionic compounds?

• Place elements based on their atomic number

• Place the more metallic element first

• Place elements in alphabetical order

• Place the less metallic element first

What should the total charge be in a balanced ionic compound?

• 0

• +2

• -1

• +1

How do you balance the charges in sodium sulfide?

• Add another sulfur ion

• Remove a sodium ion

• Add another sodium ion

• Remove a sulfur ion

What is the charge of lithium in lithium hydroxide?

• -2

• -1

• +2

• +1

What is the charge of tin in tin(II) phosphate?

• +2

• +1

• -1

• -2

Why are parentheses used around phosphate in tin(II) phosphate?

• To highlight it is a metal

• To show it is a polyatomic ion

• To indicate it is a single element

• To denote it is a gas

What is the charge of ammonium in ammonium nitrate?

• +1

• -1

• +2

• -2

What is the charge of nitrate in ammonium nitrate?

• +2

• -1

• -2

• +1