Answer:
4Fe+ 6H2 O+ 3O2 ----> 4Fe(OH)3
However, simple covalent compounds are generally named by using prefixes to indicate how many atoms of each element are shown in the formula. Also, the ending of the last (most negative) element is changed to -ide. The prefixes used are mono-, di-, tri-, tetra-, penta-, hexa-, and so forth.
Is there any multiple choices?
Answer:
atoms are neutral or they have equal number of proton and electron but ions can be cation(positively charged) or anion(negatively charged) based on the number of electron the atm lose and gain respectively
2.
move constantly
3.
solid - definite shape and volume
liquid - only definite volume
gas - none.
4.
The particles of gases have large interparticular space between them and they move constantly and sometimes these particles move away leading to change in volume but in case of solids the particles are packed tightly with low interparticular spaces and high interparticular force.
5.
shown in image above.