Double Jeopardy for Chemistry 8-9

Greek Prefixes

200

6

hexa

400

7

hepta

600

8

octa

800

9

nona

1000

10

deca

Symbol of Ion

200

Chlorine

What is Cl^-?

400

Oxygen

What is O^-2?

600

Beryllium

What is Be⁺²?

800

Nitrogen

What is N^-3?

1000

Iron

What is Fe⁺³?

Covalent or Ionic?

200

CO₂  is what type of bond? 

What is a covalent bond?

400

KS₂

What is an ionic bond? 

600

SO₃

What is a covalent bond?

800

Ca₃N₂

What is an ionic bond?

1000

DAILY DOUBLE

What is an A?

Vocabulary

200

This states that in samples of any chemical compound, the masses of the elements are always in the same proportion

What is the law of definite proportions?

400

One of the two or more equally valid electron dot structures of a molecule or polyatomic ion

What is a resonance structure?

600

A pair of valence electrons that is not shared between atoms

What is an unshared pair?

800

A covalent bond in which one atom contributes both bonding electrongs

What is a coordinate covalent bond? 

1000

A tightly bound group of atoms that behaves as a unit and has a positive or negative charge

What is a polyatomic ion?

Formulas

200

Iron Sulfate formula

What is FeSO⁴?

400

Calcium phosphide formula

What is Ca₃P₂?

600

Phosphorus Bromide formula

What is P₃Br₄?

800

Ammonium chlorate formula

What is NH₄ClO₃?

1000

Cobalt (II) fluoride formula

What is CoF₂?