Question

the circles shown above represent three different elements. the six images below are samples of substances or mixtures that include these elements. how many of the images represent homogeneous mixtures?

Explanation:

Step1: Recall the definition of homogeneous mixture

A homogeneous mixture has a uniform composition throughout. In terms of particle - level representation, it means that the different components (atoms or molecules) are evenly distributed.

Step2: Analyze each image

• For the first image: The distribution of the different - colored circles (representing different elements) is not uniform.
• For the second image: The different - colored circles (representing different elements or compounds) are evenly distributed.
• For the third image: The distribution of the different - colored circles (representing different elements or compounds) is not uniform.
• For the fourth image: The different - colored circles (representing different elements or compounds) are evenly distributed.
• For the fifth image: The distribution of the different - colored circles (representing different elements or compounds) is not uniform.
• For the sixth image: It is a pure substance (all circles are of the same color - representing one element), not a mixture.

Answer:

2