Identify the following as homogeneous and heterogeneous mixtures.
(i) Sugar dissolved in water.
(ii) Oil and water

Explanation

To identify the mixtures as homogeneous or heterogeneous, we will analyze each example step by step.

### Step 1: Understanding Homogeneous and Heterogeneous Mixtures
- A **homogeneous mixture** is one that has a uniform composition throughout. In a homogeneous mixture, the different components are not distinguishable and exist in a single phase.
- A **heterogeneous mixture** consists of visibly different substances or phases. In a heterogeneous mixture, the components can be physically separated and are distinguishable.

### Step 2: Analyzing Sugar Dissolved in Water
1. **Initial State**: We start with sugar (solid) and water (liquid). Here, we have two distinct phases: solid and liquid.
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