Question

From the list below, determine which properties are for compounds.

I. It takes a large amount of energy to separates the elements of a compound.

II. The proportions of the elements in a compound are always fixed.

III. It is easy to separate the elements of a compound.

IV. The elements/components of a compound do not retain their individual properties.

Answer 1

I,II&IV PRAIEZ GHOD
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Answer 2

Following are the properties of compounds:

• The properties of the elements in a compound are always fixed.
• The elements/ components of a compound do not retain their individual properties.

Compound is a composition of two or more elements that are chemically bonded together in a specific ratio. The property of compound is not same as property of its ingredients. For example, water is a compound form by addition of two gases hydrogen and oxygen in the ratio 2:1. The two gas element when combined form a liquid. The bond form by transfer to two electron of hydrogen atom to the oxygen atom which has a vacancy of two atom in last shell. Thus the hydrogen becomes the donor and the oxygen becomes the acceptor. The formed compound have completely different properties than the actual elements.