Chemistry Jeopardy For Sunflower!

Atomic Structure

100

This positively charged subatomic particle is found inside the nucleus and determines an element's identity.

Proton.

200

Atoms of the same element that have the same number of protons but different numbers of neutrons.

Isotopes

300

An atom that has gained or lost electrons, giving it an overall positive or negative charge.

Ion

400

Electrons located in the outermost shell of an atom that are involved in chemical bonding.

Valence electrons.

500

The trend on the periodic table where an atom's ability to attract shared electrons increases as you move across a period to the right and up a group.

Electronegativity.

Chemical Reaction

100

The reaction type where a solid product is formed from a solution.

precipitation reaction.

200

The state symbol denoted by (aq) in a chemical equation means the substance is dissolved in this.  

water

300

Ions in a reaction that remain unchanged in solution on both sides of the equation and do not participate in the actual chemical change.

spectator ions

400

The coefficients needed to balance this equation: 

__Fe+__O₂ -> __ Fe₂O₃

4,3,2

500

In a single displacement reaction, a free metal can only displace another metal from a compound if it sits higher on this list.

Reactivity series

Acids and Bases

100

A liquid with a pH value of 3 is classified as this

acid

200

The two main products formed when an acid reacts completely with a base in a neutralization reaction.

salt and water

300

The color that universal indicator or litmus paper turns in a strongly alkaline/basic solution (pH 12–14).

blue

400

An acid is defined as a molecule or ion that acts as a donor of these particles.

H+ ion

500

On the pH scale (which ranges from 0 to 14), a solution that is completely neutral—such as pure drinking water—has this exact pH value.

7

Atoms, Elements, Compounds & Ions

100

Classify this substance: Liquid pure water, which consists of two different types of elements chemically bonded together.

Compound

200

Classify this particle: A single, neutral sodium particle containing 11 protons and 11 electrons.

atom

300

Assign the charge: A neutral calcium atom (Ca) loses 2 electrons during a chemical reaction to achieve a stable full outer shell. What is its resulting charge?

+2

400

Classify this species: Sulfate (SO₄^2-), which consists of multiple sulfur and oxygen atoms bonded together with an overall negative charge.

polyatomic ion

500

Assign the correct classification (Atom, Element Molecule, Compound, or Ion) to each of these 4 chemical symbols in order:

1. Fe

2. O₂

3. CO₂

4. Cl-

1. Atom / Element

2. Element Molecule

3. Compound

4. Ion (or Anion)

Equations

100

___ N₂ + ___ H₂ → 2 NH₃

1,3

200

Balance this classic neutralization equation:

HCl + NaOH → NaCl + H₂O

Balanced!

300

Write the complete ionic equation for the following molecular reaction by splitting all aqueous compounds into their separate ions:

NaCl(aq) + AgNO₃(aq) → AgCl(s) + NaNO₃(aq)

Na+(aq) + Cl-(aq) + Ag+(aq) + NO₃-(aq) → AgCl(s) + Na+(aq) + NO₃-(aq)

400

Identify the two spectator ions in this ionic equation:

K+(aq) + I-(aq) + Pb²⁺(aq) + NO₃-(aq) → PbI₂(s) + K+(aq) + NO₃-(aq)

K+ (Potassium) and NO₃- (Nitrate)

500

Write the final net ionic equation for the precipitation reaction between aqueous Silver Nitrate and aqueous Sodium Chloride, which forms solid Silver Chloride.

Ag+(aq) + Cl-(aq) → AgCl(s)