Which of the Following Are Combination Reactions? 1) CH₄ (G)

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:

Guillaume Apollinaire

A French poet, playwright, and art critic who was a key figure in the early 20th-century avant-garde, known for his technical innovation and themes of love and modernity.

Arts and Crafts Movement

A late 19th and early 20th-century movement advocating for traditional craftsmanship using simple forms and opposing industrial mass production.

Mass Production

The manufacturing of large quantities of standardized products, often on assembly lines, enabling efficiencies and lower costs of goods.