Question

question 8
a teacher drew 3 figures on the board
figure 1 figure 2 figure 3
which option correctly classifies each figure as a compound, element, or mixture?

• figure 1: element figure 2: compound figure 3: mixture
• figure 1: compound figure 2: element figure 3: mixture
• figure 1: compound figure 2: mixture figure 3: element
• figure 1: element figure 2: mixture figure 3: compound

Explanation:

Step1: Analyze Figure 1

Figure 1 has only one type of atom (all circles are same - looking), so it's an element (pure substance with same type of atoms).

Step2: Analyze Figure 2

Figure 2 has molecules made of the same type of atoms (each molecule has same - looking atoms bonded), so it's a compound? Wait, no, wait: Wait, no, in Figure 2, all molecules are the same (same type of atoms bonded), so it's a compound (molecules of same compound). Wait, no, wait: Wait, no, an element can be molecules (like O₂). Wait, no, let's recall: Element - pure substance with only one type of atom (can be single atoms or molecules of same atom). Compound - pure substance with molecules of two or more different atoms bonded. Mixture - two or more substances (elements or compounds) mixed.

So Figure 1: all single atoms, same type → Element.

Figure 2: all molecules, each molecule has two types of atoms? Wait, no, looking at the figure (as per description), Figure 2 has molecules with same - looking atoms? Wait, maybe I misread. Wait, the first option: Figure 1: Element, Figure 2: Compound, Figure 3: Mixture. Let's re - check:

Figure 3: has different types of molecules (some with two - atom molecules, some single atoms of different type) → mixture (two or more substances: the compound molecules and the single - atom elements).

Figure 2: molecules with two atoms (maybe same or different? Wait, if Figure 2 has molecules with two different atoms, it's a compound. Figure 1: single atoms, same type → element. Figure 3: mixture of compound and element. So the first option: Figure 1: Element, Figure 2: Compound, Figure 3: Mixture is correct.

Answer:

Figure 1: Element Figure 2: Compound Figure 3: Mixture