<span>A. They are inexpensive to use. Most of the chemical indicators are not expensive and can be used conveniently. Litmus paper is and example for chemical indicator. it is very cheap and anyone can procure it. The paper can be used to check acidic and basic nature of solvents.</span>
Compounds can be broken down into simpler substances by chemical means, but elements cannot. break a compound into simpler substances; oxygen and hydrogen that water contains.
