Question

Differentiate between
a. Metals and non metals
b. Physical proprieties and chemical properties​

Answer 1

Explanation:

metals and non metals

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Answer 2

Answer:

Answer: a) Metals

Metals have lustre. Mercury and gallium are an exception.Metals are solids at room temperature. Mercury is an exception being liquid. Metals generally possess the property of hardness. They are ductile and malleable. Metals are good conductors of heat and electricity.

Non-metals

Non-metals do not have lustre, Iodine and diamond are exceptions.Non-metals are either solid or gaseous. Bromine is an exception being in a liquid state. Non-metals do not possess the property of hardness.They are non-ductile and malleable.Non-metals are bad conductors of heat and electricity except graphite.

b) Chemical Properties

Chemical properties are properties that can be observed or measured when a substance undergoes a chemical change.A chemical reaction needs to be conducted to show the property.Chemical properties are connected to chemical bonds of a substance.It can be used to predict how substances react.Chemical properties of a substance can include buoyancy, viscosity

Compressibility, radioactivity, toxicity, flammability, heat of combustion, reactivity between chemicals, etc.

Physical Properties

Physical properties are properties that can be observed without bringing a chemical change.No chemical reaction is needed here.Physical properties do not have such relationship.It is mostly used in identifying or describing the substance.Examples of physical properties include:

Molecular weight, boiling point, melting point, freezing point, volume, mass, length, density texture, colour, odour, shape, solubility, etc.