When the Equation Si(s) + HF(aq) $\rightarrow$ SiF₄(g) + H₂(g) Is Balanced, What Is the Coefficient for Is

question 48

Multiple Choice

When the equation Si(s) + HF(aq) $\rightarrow$ SiF₄(g) + H₂(g) is balanced, what is the coefficient for HF?

• A) 0
• B) 1
• C) 2
• D) 3
• E) 4

---

Definitions:

Poverty Threshold

The minimum level of income deemed necessary to achieve an adequate standard of living in a specific geographical area.

Income Inequality

The uneven allocation of income among households or individuals within an economy.

World War II

A global conflict that took place between 1939 and 1945, involving most of the world's nations and resulting in significant geopolitical changes.

Poverty Rates

Indicators or measures that reflect the percentage of the population living below the national poverty line, which is often defined by the inability to afford the basic needs for living.