Identify All of the Spectator Ions in the Precipitation Reaction

question 29

Multiple Choice

Identify all of the spectator ions in the precipitation reaction below.
Ca²⁺(aq) + 2Br−(aq) + 2Li⁺(aq) + CO₃²⁻(aq) → CaCO₃(s) + 2Li⁺(aq) + 2Br−(aq)

• A) Ca²⁺ and Li⁺
• B) Br− and CO₃²⁻
• C) Br− and Li⁺
• D) CaCO₃
• E) Ca²⁺,Br−,Li⁺,and CO₃²⁻

---

Definitions:

Collaborative Filtering

A technique used by recommendation engines to filter out items by predicting a user's interest based on collected preferences from many users (collaborating).

Personalization

The process of tailoring products, services, or experiences to meet the individual preferences or needs of customers, often using data and analytics to enhance personal relevance.

Multichannel Marketing

The blending of different communication and delivery channels that are mutually reinforcing in attracting, retaining, and building relationships with consumers who shop and buy in traditional intermediaries and online. Sometimes called omnichannel marketing.

Choiceboards

Interactive, online systems that allow individual customers to design their own products by choosing from a variety of features, components, and services.