An unknown substance is made only of identical atoms that cannot be broken down. This substance is a ________.
2 answers:
Answer: Element
Explanation:
Element is a pure substance which is composed of identical atoms. It can not be decomposed into simpler constituents using chemical reactions.Example: Silver
Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: carbon dioxide
Thus an unknown substance is made only of identical atoms that cannot be broken down is an element.
You might be interested in
Answer: skeletal equation :
The products are sodium nitrate and barium sulphate.
balanced equation :
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
The skeletal equation is:
The balanced chemical equation is: