A chemical formula will list all elements present by their abbreviations used on the Periodic Table. A subscript listing how many atoms of each element are present in the chemical will follow each element abbreviation.
In chemistry a molecular formula is used to illustrate the elemental composition and atomic quantities of a given molecular substance. A molecular formula is in the format of an elements symbol followed by a subscript of the # of atoms of each. For example water (chemically also known as dihydrogen monoxide) is H20 with the H and 2 symbolizing 2 atoms of hydrogen and a single oxygen.
I'll start with a simple example:
H2O --> H2 + O2
This is not balanced, but to balance you use coefficients along with the subscripts of the reaction to make the elements on both side of the arrow correspond with one another.
Start with writing down the amount of each element with just their subscripts.
H2O:
H=2
O=1
H2 + O2:
H=2
O=2
Now notice how you need one more Oxygen (O) on the first part of the reaction, so then you would use a coefficient to double the H2O, which turns out like this:
2H2O --> H2 + O2
2H2O:
H=4
O=2
H2 + O2:
H=2
O=2
Now notice that the oxygen is fixed, but the hydrogen (H) doubled as well, so you need to double the hydrogen on the other side:
2H2O --> 2H2 + O2
2H2O:
H=4
O=2
2H2 + O2:
H=4
O=2
This equation is now completely balanced.
A chemical formula is a representation of an element or compound using symbols and abbreviations. It tells how many atoms and molecules of an element are present in the chemical.
Unbalanced: C3H8 + O2 -> H2O + CO2 (Left side: 3C, 8H, 2O; Right side: 1C, 2H, 3O) Balanced: C3H8 + 5O2 -> 4H2O + 3CO2 (Left side: 3C, 8H, 10O; Right side: 3C, 8H, 10O)
Any ionic compound can be represented by the general formula MN, where "M" is a metal, and "N" is a non-metal.
To right of the equal sign are placed the products, to left are placed the reactants.
"Production of glucose in plants"
This is a synthesis reaction, and when it's balanced, it looks like this: 4Al + 3O2 --> 2Al2O3
The chemical equation looks like this:4HNO3(l) --> 4NO2(g) + 2H2O(l) + O2(g)
ya it changes how it looks or feels
Chemical Changes the substance and physical really dont change it as much examples of chemical: burning wood, physical: painting it Physical is basically changing color, looks,
a balanced equation is when all matter is accounted for on both sides. This is important because matter cannot be created or destroyed. For example, the creation of glucose through photosynthesis looks like this: CO2 + H2O = C6H12O6 + O2 + H2O This is an unbalanced equation because there is not enough oxygen, hydrogen, and carbon on the left side to create the right side. The balanced equation would be: 6 CO2 + 12 H2O = C6H12O6 + 6 O2 + 6 H2O The number of oxygen, hydrogen, and carbon atoms on each side, when subtracted, create 0 which means all matter is accounted for and therefore the equation is balanced
The balanced equation looks like this: k2so4+alcl3 kcl+al2(5o4)3
"Production of glucose in plants"
This is a synthesis reaction, and when it's balanced, it looks like this: 4Al + 3O2 --> 2Al2O3
The parts of a chemical equation always follow after the arrow are products and parts of a chemical equation always before the arrow are reactants . the reaction equation between NH3 and HNO3 is as follows .Balanced equation:HNO3 + NH3 = NH4NO3.The reaction type is syntheis reaction for the above equation and the reaction taking place .
This is a chemical equation describing the reaction between hydrochloric acid and aluminum to form aluminum chloride and hydrogen gas. Written with formatting, the chemical equation looks like: 6 HCl + 2 Al --> 2 AlCl3 + 3 H2
3CaCO3 + 2H3PO4 --> Ca3(PO4)2 + 3CO2 + 3H2O It just looks hard but once you get going it's not all that difficult.
Silver Chloride + Aluminum Nitrate. or AlCl3 + AgNO3 = Al(NO3)3 + AgCl (unbalanced)3AlCl3 + AgNO3 = Al(NO3)3 + 3AgCl (balanced)EDIT: I actually believe that the above equation is not balanced correctly.This is what I got;AlCl3 + 3AgNO3 = 3AgCl + Al(NO3)3
The chemical equation looks like this:4HNO3(l) --> 4NO2(g) + 2H2O(l) + O2(g)
Lithium fluoride has the chemical formula LiF. It is a common salt, known as an alkali halide.
In a way it is but not quite. An equation looks like this a+b=c. an equation always has a equal sign in it. This answer can be yes and no.
If radon-210 undergoes alpha decay, it will produce the alpha particle (which is a helium-4 nucleus) and polonium-206. The equation looks like this: 86210Ra => 24He + 84206Po You'll note that in the balanced nuclear equation, the atomic numbers, which are the subscripts, balance on both sides of the equation (86 = 2 + 84). The atomic masses, which are the superscripts, also balance on both sides of the equation (210 = 4 + 206).