When Two Elements, a and B, Form Two Different Compounds

question 93

Multiple Choice

When two elements, A and B, form two different compounds, the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers. Which law does this refer to?

• A) Law of definite proportions
• B) Law of the conservation of mass
• C) Law of modern atomic theory
• D) Law of multiple proportions
• E) First law of thermodynamics

---

Definitions:

Pigouvian Tax

A tax imposed on any market activity that generates negative externalities, intended to correct the market outcome by internalizing the costs of the externality.

Marginal Social Cost

The complete expense incurred by society to produce an extra unit of a good or service, encompassing both individual costs and external impacts.

Marginal Social Benefit

Marginal social benefit is the additional gain to society as a whole from an additional unit of a good or service.

Socially Optimal

Refers to a situation where goods or services are produced and consumed at a level that maximizes overall social welfare.