Question

categorize
drag and drop each substance to the correct column
based on their chemical formulas and what you know
about molecules and compounds.
molecule | compound/molecule
methane ch₄
ammonium nitrate nh₄no₃
glucose c₆h₁₂o₆
oxygen o₂
carbon dioxide co₂
hydrogen h₂
water h₂o
iodine i₂

Explanation:

Step1: Recall definitions

• Molecule: A group of two or more atoms held together by chemical bonds. It can be a single element (diatomic, etc.) or a compound. But for the "Molecule" column here (likely for elemental molecules), we consider molecules made of the same element.
• Compound/Molecule: A molecule that is a compound (composed of two or more different elements) and also a molecule (since compounds are molecules when they have covalent bonds, or ionic compounds can be considered as formula units, but here we use the general term).

Step2: Classify each substance

• Molecule (elemental): Substances with only one type of atom.
• Hydrogen ($H_2$): diatomic molecule of hydrogen (element).
• Oxygen ($O_2$): diatomic molecule of oxygen (element).
• Iodine ($I_2$): diatomic molecule of iodine (element).
• Compound/Molecule: Substances with two or more different elements (compounds, and they are molecules as they have covalent bonds here).
• Methane ($CH_4$): C and H (compound, molecule).
• Ammonium Nitrate ($NH_4NO_3$): N, H, O (compound, molecule).
• Glucose ($C_6H_{12}O_6$): C, H, O (compound, molecule).
• Carbon Dioxide ($CO_2$): C and O (compound, molecule).
• Water ($H_2O$): H and O (compound, molecule).

Answer:

• Molecule column: Hydrogen ($H_2$), Oxygen ($O_2$), Iodine ($I_2$)
• Compound/Molecule column: Methane ($CH_4$), Ammonium Nitrate ($NH_4NO_3$), Glucose ($C_6H_{12}O_6$), Carbon Dioxide ($CO_2$), Water ($H_2O$)