Classify the following mixtures as homogeneous or heterogeneous.
gasoline granite stainless steel sandwich rum
Homogenous mixture Heterogeneous mixture
The Correct Answer and Explanation is :
Classification of Mixtures
- Gasoline – Homogeneous Mixture
- Granite – Heterogeneous Mixture
- Stainless Steel – Homogeneous Mixture
- Sandwich – Heterogeneous Mixture
- Rum – Homogeneous Mixture
Explanation
A mixture is a combination of two or more substances that retain their individual properties. Mixtures can be classified into two main types:
Homogeneous Mixtures
A homogeneous mixture has a uniform composition throughout, meaning its components are evenly distributed, and it appears as a single phase. Examples:
- Gasoline: It is a liquid mixture of hydrocarbons and additives that appear uniform throughout. Since the composition is consistent and does not separate into different layers, it is homogeneous.
- Stainless Steel: This is an alloy composed mainly of iron, chromium, and nickel. It has a uniform composition throughout, making it a homogeneous mixture.
- Rum: A mixture of ethanol, water, and other compounds that dissolve completely, making it appear uniform.
Heterogeneous Mixtures
A heterogeneous mixture does not have a uniform composition and consists of visibly different substances or phases. Examples:
- Granite: This is a coarse-grained rock containing minerals such as quartz, feldspar, and mica. Since these components are distinguishable and not evenly mixed at the microscopic level, granite is a heterogeneous mixture.
- Sandwich: It consists of various components (bread, cheese, meat, vegetables) that are easily distinguishable, making it heterogeneous.
Homogeneous mixtures are often solutions, while heterogeneous mixtures can be suspensions or colloids. Understanding these classifications helps in various scientific and industrial applications.
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