Sodium Metal and Water React to Form Hydrogen and Sodium

question 75

Multiple Choice

Sodium metal and water react to form hydrogen and sodium hydroxide.If 17.94 g of sodium react with water to form 0.78 g of hydrogen and 31.20 g of sodium hydroxide,what mass of water was involved in the reaction?

• A) 14.04 g
• B) 17.94 g
• C) 30.42 g
• D) 31.98 g

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Definitions:

World Systems Theory

A multidisciplinary, macro-scale approach to world history and social change that suggests there is a world economic system in which some countries benefit while others are exploited.

Dependency Theory

The global theory maintaining that industrialized nations hold less-industrialized nations in a dependent relationship that benefits the industrialized nations at the expense of the less-industrialized ones.

Modernization Theory

A theory that suggests societies progress through a series of stages toward stability, democracy, and prosperity, often through technology and industrialization.

Functionalist Theory

A sociological perspective that interprets each part of society in terms of how it contributes to the stability and functionality of the whole society.