21 Apr Formula for a compound indicates the elements that make up the compound and the number of atoms of each element present in the compound. The numbers of atoms are indicated by the u
e formula for a compound indicates the elements that make up the compound and the number of atoms of each element present in the compound. The numbers of atoms are indicated by the use of small numbers called subscripts.
Sometimes groups of atoms act as a single atom. Such a group of atoms is called a polyatomic ion. If a polyatomic ion is used in a formula more than once, it is put in parentheses and the subscript appears outside of the parentheses. When a subscript appears outside the parentheses, it indicates that all the elements inside the parentheses should be multiplied by that subscript. For example, the formula Fe(OH)3 indicates the combination of 1 atom of iron (Fe), 3 atoms of oxygen (O) and 3 atoms of hydrogen (H).
Name
Use
Formula
Atoms in Formula
Calcium Carbonate
Limestone
CaCO3
Ca= calcium 1
C = carbon 1
O = oxygen 3
Aspirin
Pain reliever
C9H8O4
Magnesium
Hydroxide
Found in milk of magnesia
Mg(OH)2
Paradichlorobenzene
Moth crystals
C6H4Cl2
Acetic acid
Found in vinegar
C2H4O2
Trinitrotoluene (TNT)
Explosive
C7H5(NO2)3
Calcium dihydrogen
Phosphate
Fertilizer
Ca(H2PO4)2
Name
Use
Formula
Atoms in formula
Pyrite
Fool’s gold
FeS2
Sucrose
Sugar
C12H22O11
Pentane
A component in gasoline
C5H12
Sulfuric Acid
Used in car batteries
H2SO4
Cellulose
Found in wood products like paper /pencil
C6H7O2(OH)3
Asbestos
Insulator
H4Mg3Si2O9
Dichlorodiphenyl-trichloroethane
(DDT)
Banned pesticide
C14H9Cl5
Silicon dioxide
Sand
SiO2
Iron oxide
Rust
Fe2O3
Butane
Lighter fluid
C4H10
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Wridemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.