Question

what is a compound ? what is a characteristic of compounds​

Answer 1

Explanation:

COMPOUND : Compound is a pure substance which is composed of two or more elements , combined chemically in a fixed proportioj by weight and can be broken into elements by chemical methods alone..

CHARACTERISTICS OF COMPOUND :

• A compound is a substance made up of two or more elements chemically combined in a fixed proportion by mass.

• A compound is formed as a result of chemical reaction, between the constituent elements.
• The properties of compound are different from the properties of the elements from which it is formed...

EXAMPLES OF COMPOUND:

Water - Formula: H2O = Hydrogen2 + Oxygen. ...

Hydrogen Peroxide - Formula: H2O2 = Hydrogen2 + Oxygen2 ...

Salt - Formula: NaCl = Sodium + Chlorine. ...

Baking Soda - Formula: NaHCO3 = Sodium + Hydrogen + Carbon + Oxygen3 ...

Octane - Formula: C8H18 = Carbon8 + Hydrogen18...

Answer 2

Answer:

Compound is a substance made up from atoms of two or more elements.

Characteristics:

1. Proportion of mass of elements is fixed.

2. It is formed after any chemical reaction and it's properties are totally different from it's constituent elements.