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10Compounds are formed by chemical reactions between two or more elements.
Compounds are made of atoms in fixed ratio.
Water is a compound formed from hydrogen and oxygen.
Sodium chloride (NaCl) is a compound of sodium and chlorine.
A compound can have varying proportion of elements like a mixture.
Molecules of a compound are made of identical atoms.
Chemical reaction is a process of formation of a new substance.
Compounds can be formed without chemical reactions.
Molecules of water have two hydrogen atoms and one oxygen atom.
Compounds show properties different from their constituent elements.
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A compound is formed by:
Water (H₂O) is a compound made of:
Sodium chloride (NaCl) is made of:
Compounds have atoms in:
Which of the following is a compound?
Chemical reaction results in:
Water molecule is an example of:
Molecules of a compound:
Common salt (NaCl) is:
The process that forms a compound is called:
Compounds are formed by ______ reaction of two or more elements.
Water is a compound made of ______ hydrogen atom(s) and ______ oxygen atom(s).
Sodium chloride is formed from ______ and ______.
Molecules of a compound are made of ______ type of atoms.
Elements combine in a ______ ratio to form compounds.
Formation of a new substance from two or more atoms is called ______ reaction.
HCl is a compound made of ______ and ______.
Compounds have properties ______ from their constituent elements.
Molecules of water (H₂O) contain ______ atoms of hydrogen.
The number of types of natural elements discovered so far is ______.