After Being Thoroughly Stirred at 10°C, Which Mixture is Heterogeneous?
A heterogeneous mixture is a mixture where the components are not evenly distributed and can be easily distinguished from one another. Here's how to determine which mixtures are heterogeneous after being stirred at 10°C:
Key Factors:
- Solubility: The ability of a substance to dissolve in another substance (usually a liquid).
- Temperature: Affects the solubility of some substances.
- Stirring: Helps distribute components but doesn't always create a homogeneous mixture.
Examples of Heterogeneous Mixtures at 10°C:
- Sand and Water: No matter how thoroughly you stir sand and water, the sand particles will settle to the bottom, making it a heterogeneous mixture.
- Oil and Water: Oil and water are immiscible, meaning they don't mix. Stirring creates temporary droplets, but the two liquids will separate again.
- Flour and Water (uncooked): Flour will form clumps in water even after stirring.
- Gravel and Salt: The different sizes and densities of the components will make it easy to distinguish them.
Examples of Homogeneous Mixtures at 10°C:
- Salt and Water (dissolved): Salt will dissolve completely in water, creating a homogeneous solution.
- Sugar and Water (dissolved): Sugar dissolves readily in water, forming a homogenous mixture.
Important Note:
Even though a mixture might seem homogeneous after stirring, it doesn't necessarily mean it's truly homogeneous. Some mixtures might appear homogeneous at a macro level but become heterogeneous at a microscopic level.
To determine if a mixture is heterogeneous after being thoroughly stirred at 10°C, you need to consider the specific components and their properties, specifically their solubility at that temperature.
