Question

1. what are physical properties of a substances.
2. give an example of a physical change.
3.Freezing half water for melting of ice is what kind of change.
4. mention three indicators of a chemical change.​

Answer 1

Answer:

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points.

Answer 2

1.A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points.

Physical Properties: Chemical Properties

Mercury is a very dense liquid: A green banana turns yellow when it ripe☺️✔️

2.Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density. An example of a physical change is the process of tempering steel to form a knife blade.✔️☺️

3.When you melt an ice cube (H2O), you have a physical change because you add energy. You added enough energy to create a phase change from solid to liquid. Physical actions, such as changing temperature or pressure, can cause physical changes. No chemical changes took place when you melted the ice.✔️☺️

4.Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change☺️✔️

Hope it Helps you☺️☺️☑️