Which List of Items Contains Only Ions

question 8

Multiple Choice

Which list of items contains only ions?

• A) ​CO₂,H₂O,Na⁺,H^-
• B) ​ Na⁺,H^-,Pb,Hg
• C) ​Pb,Hg,CO₂,NaCl
• D) ​Cl^-,Na⁺,Ca²⁺,NO₃^-
• E) ​NaCl,NO,CO,NaOH

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Definitions:

Primary and Secondary Sectors

The primary sector involves the extraction and harvesting of natural resources, while the secondary sector focuses on the transformation of these resources into finished goods through manufacturing.

Work

An activity involving mental or physical effort done in order to achieve a purpose or result, often associated with a profession or job.

Post-Technological

Referring to a conceptual future or theoretical state beyond current technological advancements and dependencies.

Secondary Sector

The portion of an economy that is concerned with the processing of raw materials obtained by the primary sector into goods and products.