Answer:
A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements.
Explanation:
If only one atom of a specific type is present, no subscript is used. For atoms that have two or more of a specific type of atom present, a subscript is written after the symbol for that atom
The correct option is C.
For an element to be unreactive and stable, it must have eight electrons in its outermost shell. Sodium has an atomic number of 11 and thus have only one electron in its outermost shell. This makes sodium very reactive and it is always very willing to react with suitable elements in order to become stable.
Answer:
Ittttttttt isssssssssssss
2li+2H2O->2LiOH+H2
Answer:
The correct answer is option C.
Explanation:
Single replacement reaction : It is a type of chemical reaction in which element exchange their position with the position of another element in its compound molecule.

It is also called redox reaction because one element getting oxidized and another one getting reduced.
Hence, the correct answer is option C.