chemical equation?

Question

help me, how to write a chemical equation.Give me some example.

Answer 1

First write "c"
then e
then m
then i
.....
then finally n
Is this enough or if u wanna do some further reading recommended book"Science for grade 1"

Answer 2

2 Hydrogen atoms and 1 oxygen atom ----> H20

The 2 in between H and O must be supscripted.

Now an Isomer ( Molecules with different different make up than other molecules but same atoms that make it up), a hydrocarbon.

Methane(hydrocarbon) - 1 carbon and 4 hydrogen atoms ---> CH4

All chemical formulas that contain an element that has more than 1 atom for the molecule it must the number of atoms the element has, and must be subscripted. If the molecule contains only 1 atom of the element(s) you just be the element symbol down instead of putting the chemical symbol of it with a 1.

Answer 3

First write a word equation of what is going on. This will tell you what reactants are use and what are the products. For example the reaction between zinc and hydrochloric acid

Zinc + Hydrochloric acid = Zinc Chloride + Hydrogen.

Then you look up the chemical elements and molecules present in the reaction, i.e Zinc (Zn) , hydrochloric acid (HCl), Chloride(Cl), Hydrogen (H2). then we need to look up the valencies of the elements, with zinc having a valency of +2, Hydrogen having a valency of +1, chlorine having a valency of -1

Looking up the symbols allows us to write a chemical equation

Zn + HCl -------> ZnCl2 + H2

Then we need to balance the equation, we note that there are one mole of zinc atoms on both side of the equation, but only one mole of hydrogen and chlorine on the left hand side of the equation compared to two on the right-hand side. This means we need to double the amount of HCl on the left hand side. The above equation needs to be modified to give

Zn + HCl -------> ZnCl2 + H2

The equation is now balanced. The final thing to do is give the states (solid, s, liquid, l, gas, g, aqueous, aq) of the elements in the reaction, this could be important for calculation of heat of reaction.

Zn (s) + HCl (aq) -------> ZnCl2 (aq) + H2 (g)

That is the procedure for writing equations.

Answer 4

The balanced equation is therefore written:

2H2 + O2 2H2O

In writing chemical equations, the number in front of the molecule's symbol (called a coefficient) indicates the number of molecules participating in the reaction. If no coefficient appears in front of a molecule, we interpret this as meaning one.

Answer 5

The table salt:

NaOH + HCl ==> NaCl + H2O, here you say:

Sodium hydroxide, plus hydrochloric acid yield sodium chloride plus water.

An equation, as the name suggests, have to be balanced i.e. the same count of atoms of each element at both sides of the equation

Answer 6

H2 + Br2 = HBr & HBr you will possibly desire to make confident that there is an identical quantity of factors on the two area of the equation. so for this equation it makes 2 molecules of HBr because of fact ther are 2 of each factor on the different area of the equation.

Answer 7

butyric acid=4 atoms of carbon 7 atoms of hydrogen 1 atom of oxygen hydroxyl

butyric acid=C4H7OOH

Answer 8

H2O=WATER

2HYDROGEN
+
1OXYGEN
=
WATER