Question

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 spheres are the same), so it's an element (substances made of only one type of atom).

Step2: Analyze Figure 2

Figure 2 has only one type of molecule (all molecules are identical, made of the same atoms bonded together), so it's a compound (substances made of two or more atoms chemically bonded, same molecule throughout).

Step3: Analyze Figure 3

Figure 3 has different types of molecules (some are the compound from Figure 2, some are different atoms/ molecules), so it's a mixture (combination of different substances not chemically bonded).

Step4: Match with Options

The first option says Figure 1: Element, Figure 2: Compound, Figure 3: Mixture, which matches our analysis.

Answer:

Figure 1: Element Figure 2: Compound Figure 3: Mixture (the first option in the list)