Polyatomic Ions and Their Properties

The video tutorial introduces a mnemonic to help memorize 50 polyatomic ions in under 15 minutes. It explains the mnemonic 'Nick the camel ate a clam for supper in Phoenix' to remember the formulas and charges of key ions like nitrate, carbonate, chlorate, sulfate, and phosphate. The tutorial expands on this by teaching how to derive additional ions using basic rules and family associations on the periodic table. It also covers the memorization of other important ions such as hydroxide, cyanide, and permanganate.

What does the mnemonic 'Nick the camel ate a clam for supper in Phoenix' help you remember?

• The names of five polyatomic ions

• The atomic numbers of elements

• The periodic table groups

• The types of chemical bonds

How does the number of consonants in the word 'Nick' relate to nitrate?

• It indicates the number of hydrogen atoms

• It indicates the charge of the ion

• It indicates the number of oxygen atoms

• It indicates the number of nitrogen atoms

What is the difference between nitrate and nitrite ions?

• Nitrite has an additional nitrogen atom

• Nitrite has a different charge than nitrate

• Nitrite has one less oxygen than nitrate

• Nitrite has one more oxygen than nitrate

What does the prefix 'hypo-' signify in polyatomic ions?

• One more oxygen than the base ion

• One less oxygen than the base ion

• A higher charge than the base ion

• A lower charge than the base ion

What happens to the charge of carbonate when a hydrogen is added to form bicarbonate?

• It remains the same

• It becomes neutral

• It becomes more negative by one

• It becomes more positive by one

Which element is not included in the list of polyatomic ions due to its electronegativity?

• Bromine

• Chlorine

• Fluorine

• Iodine

What is the charge of the ammonium ion?

• +1

• -1

• +2

• -2

Which polyatomic ion is represented by the formula C2H3O2-?

• Oxalate

• Permanganate

• Acetate

• Cyanide

What is the charge of the dichromate ion?

• -1

• -2

• +2

• +1

Which of the following is a positive polyatomic ion?

• Hydroxide

• Cyanide

• Ammonium

• Acetate