As Compared with Developing Nations, in Developed Countries the Rates

question 12

Multiple Choice

As compared with developing nations, in developed countries the rates of miscarriage, stillbirth, and abnormalities in fetal brain development have been lowered because iodine has been added to __________.

• A)salt
• B)school lunches
• C)bread
• D)the water supply

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Definitions:

Oxygen

A chemical element (symbol O) with atomic number 8, essential for most forms of life and crucial in combustion processes.

Limiting Reactant

The reactant in a chemical reaction that is completely consumed first, limiting the amount of product that can be formed.

NaOH

Sodium hydroxide, a strong base used in the manufacture of soap, paper, and many other chemicals; it is highly caustic.

HCl

Hydrochloric acid, a strong acid composed of hydrogen and chlorine, commonly used in industrial and laboratory settings.