Final answer:
The false statement about solutions is 'All solutions contain two or more compounds' because a solution can be made up of elements, compounds, or both. For the substances given: white wine is a solution (homogeneous mixture), mercury is an element, ranch-style salad dressing is a heterogeneous mixture, and table sugar is a compound.
Step-by-step explanation:
The question is asking which statement about solutions is false. Let's examine the options:
- All solutions are mixtures. (This is true because solutions are a type of mixture.)
- All solutions are homogeneous. (This is true because solutions have a uniform composition throughout.)
- All solutions contain two or more compounds. (This is false - a solution must contain at least two substances, but they do not have to be compounds. For example, dissolving a gas or element in a liquid can still form a solution.)
- All solutions contain at least two substances. (This is true, as there needs to be a solute and a solvent.)
Now to identify each given substance:
- White wine is a homogeneous mixture (solution) because it has a uniform composition throughout.
- Mercury is an element, not a mixture.
- Ranch-style salad dressing is typically a heterogeneous mixture as it does not have a uniform composition throughout.
- Table sugar (sucrose) is a compound, which is a pure substance composed of two or more elements chemically bonded.