Question
Which of the following is a pure substance and why? (1 point)
Smoothies because they have several different parts.
Apple juice because it is only one color.
Water because it is only made of water molecules.
Salad because its parts are easily separated.
Smoothies because they have several different parts.
Apple juice because it is only one color.
Water because it is only made of water molecules.
Salad because its parts are easily separated.
Answers
GPT-4o mini
The pure substance among the options is **water because it is only made of water molecules**. A pure substance is defined as a material that has a uniform and definite composition. Water (H2O) is a chemical compound consisting only of water molecules, making it a pure substance. In contrast, smoothies, apple juice, and salad contain a mixture of different components, which do not meet the definition of a pure substance.