Explanation:
A property which brings no change in chemical composition of a substance is known as a physical property.
For example, size, mass, density etc are physical property.
Whereas a property which brings change in chemical composition of a substance is known as a chemical property.
For example, reactivity, toxicity are chemical properties.
Therefore, classify the given properties as follows.
- Can be split into hydrogen and oxygen - chemical property.
- Is liquid at room temperature - physical property.
- Has density of 1.0 g/cm^3 - physical property.
- Reacts with certain metals - chemical property.
