HChem Chap 8 & 19 Flashcardizz - Reactions

Front

What is the product formed when Lead Nitrate reacts with Potassium Iodide?

Back

PbI₂ (Lead(II) Iodide) is the yellow precipitate formed.

Front

Translate the word equation: Liquid nitrogen and oxygen gas combine to form nitrogen monoxide gas.

Back

N₂(l) + O₂(g) → NO(g)

Front

What is a reduction half-reaction?

Back

A reduction half-reaction involves the gain of electrons. Example: Pb⁴⁺ + 2e⁻ → Pb²⁺.

Front

How do you determine if a chemical equation is balanced?

Back

A balanced equation has the same number of each type of atom on both sides. Example: 2Na + 2H₂O → 2NaOH + H₂.

Front

What is reduction in a chemical reaction?

Back

Reduction is the gain of electrons or decrease in oxidation state. Example: N₂ → NH₃.

Front

What is the balanced equation for the reaction of sulfur dioxide and water to form sulfuric acid?

Back

SO₂ + H₂O → H₂SO₄.

Front

What is the significance of a precipitate in a chemical reaction?

Back

A precipitate indicates a chemical change has occurred, often forming an insoluble product.

Front

What does the term 'oxidation' mean in chemistry?

Back

Oxidation is the loss of electrons or increase in oxidation state.

Front

What is the role of electrons in reduction reactions?

Back

Electrons are gained in reduction reactions, decreasing the oxidation state of the substance.

Front

What is the formula for Lead(II) Iodide?

Back

PbI₂.