Which of the Following Are Combination Reactions

question 17

Multiple Choice

Which of the following are combination reactions?
1.CH₄ (g) + O₂ (g) → CO2 (g) + H2O (l)
2.CaO (s) + CO₂ (g) → CaCO₃ (s)
3.Mg (s) + O2(g) → MgO (s)
4.PbCO₃ (s) → PbO (s) + CO₂ (g)

• A) 1, 2, and 3
• B) 2 and 3
• C) 1, 2, 3, and 4
• D) 4 only
• E) 2, 3, and 4

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Definitions:

Merchandise Line

A merchandise line consists of a group of related products marketed under a single brand name, offered by the same company.

Limited-Service

Refers to businesses or offerings that provide a narrower range of services or products compared to full-service alternatives.

Full-Service

Refers to businesses or offerings that provide a complete range of services in their field without necessitating the customer to go elsewhere.

Retailer Classification

The categorization of retailers based on factors such as size, product assortment, pricing strategy, and location, to understand market dynamics better.