Question

the type and number of particles of each kind present in a substance is given by its ~~~~~.

the chemical formula of water is~~~~~~.


iron get rusted on coming in contact ~~~~~~.

the process at least to a chemical changes is called a
in our neutralization reaction dash and dash are formed ​

Answer 1

Answer:

the type and number of particles of each kind present in a substance is given by its

ATOM .✓✓✓

chemical formula of water is ( H2O ) ✓✓✓

iron get rusted on coming in contact with { moisture in air and oxygen }✓✓✓

in the process of neutralisation :

Acid. +. Base. =. Salt. +. Water

Example : HCl. +. NaOH. =. NaCl. +. H2O

hydrochloric acid + sodium hydroxide = sodium chloride + water

Hey mate !!! Hope it helps !!!!! ✓✓✓