Properties of Matter: Physical and Chemical

The video tutorial discusses the properties of matter, focusing on physical and chemical properties. Physical properties can be observed without changing the substance, while chemical properties involve a substance's ability to change into another substance. Examples of physical properties include color, melting point, and density, while chemical properties include reactivity with acids and flammability. The tutorial also includes an exam question to help distinguish between these properties.

What are the two main types of properties used to classify matter?

• Metallic and Non-metallic

• Organic and Inorganic

• Solid and Liquid

• Physical and Chemical

Which of the following is NOT a physical property?

• Reactivity with Acid

• Boiling Point

• Color

• Density

How can physical properties be observed?

• Through chemical reactions

• By changing the substance

• By heating the substance

• Using senses like touch and sight

What is required to observe a chemical property?

• Using a microscope

• Changing the substance

• Observing with senses

• Measuring the mass

Which of the following is a chemical property of iron?

• It is a good conductor of electricity

• It is malleable

• It rusts when exposed to air

• It has a high melting point

Why does gold not rust like iron?

• Gold is a poor conductor of electricity

• Gold is not exposed to air

• Gold is a liquid at room temperature

• Gold does not react with oxygen

What is the crystal shape of a substance considered as?

• An electrical property

• A biological property

• A physical property

• A chemical property

If compound X reacts with acid, what type of property is this?

• Chemical

• Optical

• Thermal

• Physical

What does it mean if compound X is flammable?

• It can burn in air

• It is soluble in water

• It can conduct electricity

• It has a high boiling point

Which property of compound X is observed without changing the substance?

• Flammability

• Reactivity with water

• Reacts with acid

• Crystal shape