Question

question 16 of 22. organic, inorganic. answer bank: methane (structure: h-c-h with h above and below), acetic acid (structure: h-c-c-o-h with hs on c), oxygen (o=o), phosphate (structure: o-p-o with o⁻ and o=o).

Explanation:

To solve this, we use the definition of organic and inorganic compounds:

• Organic compounds contain carbon (usually bonded to hydrogen, forming hydrocarbons or their derivatives).
• Inorganic compounds lack carbon - hydrogen (C - H) bonds (e.g., simple molecules, salts, minerals, some gases).

Step 1: Analyze each compound

• Methane ($\ce{CH4}$): Has C - H bonds (carbon and hydrogen). Organic.
• Acetic Acid ($\ce{C2H4O2}$): Has C - H bonds (carbon and hydrogen). Organic.
• Oxygen ($\ce{O2}$): Simple diatomic gas, no C - H bonds. Inorganic.
• Phosphate ($\ce{PO4^{3-}}$): Ionic species, no C - H bonds. Inorganic.

Step 2: Categorize

• Organic: Methane, Acetic Acid
• Inorganic: Oxygen, Phosphate

Answer:

• Organic: Methane, Acetic Acid
• Inorganic: Oxygen, Phosphate