The Fluoride Rinse in Dental Offices Usually Contains Sodium Fluoride

question 66

Multiple Choice

The fluoride rinse in dental offices usually contains sodium fluoride.Sodium fluoride can be prepared from the reaction between sodium metal and fluorine gas.Which of the following properly represents the balanced chemical equation for this reaction?

• A)Na(s)+ F₂(g)→ NaF₂(s)
• B)Na(s)+ F(g)→ NaF(s)
• C)7Na(s)+ F(g)→ Na₇F(s)
• D)2Na(s)+ F₂(g)→ 2Na₂F(s)
• E)2Na(s)+ F₂(g)→ 2NaF(s)

---

Definitions:

Technological Change

The development and application of new technologies and methods in production, often leading to increased efficiency and productivity.

Unemployment

The situation when individuals who are capable of working and willing to work are unable to find employment.

Economic Resource

Resources utilized in creating goods and services, including land, labor, capital, and entrepreneurship.

Business Checking Account

A bank account designed for business transactions, allowing companies to easily manage their cash flow, pay bills, and deposit earnings.