Krista+Sudyk

​BONDS 1. What is a covalent bond? Atoms that are held together by sharing valence electrons. These type of bonds happen between 2 or more nonmetals.

2.What is an ionic bond? Ionic bonds are the electrostatic forces that hold ions in ionic compounds together. These occur between a nonmetal and a metal.

3.List 5 differences between ionic and covalent compounds (Ex. high or low boiling and melting points, sharing or transferring electrons, etc.). Ionic bonds don't share valence electrons like covalent bonds. They give and take valence electrons from eachother. Ionic compounds are usually a crystal at room temperture. Covalent compounds are gases or liquid at room temperture. Covalent bonds form molecular compounds, ionic bonds do not. JORDAN STAAL!!! Molcular compounds usually have low melting and boiling points. Ionic compounds on the other hand have high melting and boiling points.

4.Find 5 Lewis Structures and copy and paste them on your page. Determine their molecular geometry.

Tetrahedral, Tetrahedral, Trigonal Pyramidal, Bent, Linear



Jared Staal Jordan Staal(the coolest one!) Eric Staal Marc Staal

These people are so awesome and amazing that they are on this page about chemistry. Completely ignoring the fact that have absolutly no relevance to the subject ;]

Those fancy pink and white pictures came from: [|http://chemistry.about.com]


 * 3/22/10 - Guide to Naming and Writing Formulas for Chemical Compounds**

(Given) hydrophosphoric acid (Formula) H3P
 * I know that this is an acid because of the prefix hydro-, the suffix -ic, and the word acid. I then knew that hydrogen was involved so it is the first element in the acid, then I identified phosphorus (or phosphide) as the second element involved because rule number one in naming acids says that if it ends in -ide then the prefix hydro- will be added and the suffix will be changed to -ic.

(Given) tin(ll) perchlorate (Formula) Sn(ClO4)2


 * This is an ionic compound because a metal is involved (tin). Also, a polyatomic ion is involved. I know this because perchlorate ends in an -ate. Tin has an 2+ charge which is indicated by the roman numeral. Perchlorate has a 1- charge. So, to balance the compound 2 perchlorate ions are needed.

(Given) HClO (Name) Hypochlorous acid
 * This is an acid. When hydrogen is the first element involved in the compound then it is an acid. I changed the ending of hypochlorite to hypochlorous because rule number 2 to naming acids states that if an ion ends in -ite then it needs to be changed to -ous.

(Given) Sn3(PO4)4 (Name) Tin (lV) phosphate
 * This compound contains a metal, therefore it is an ionic compound. Tin is a transtion metal so, it needs a roman numeral. To figure out the charge of tin, I looked at the charge of the phosphate ion that is involved. Phosphate has a 3- charge and 4 of them are in this compound. To find the total charge on the Phosphate ions, I multiplied 3- times 4 to get a 12- charge. This made it possible to find the charge on the tin. There are 3 tin atoms involved so to balance out the 12- charge on the phosphate ions tin would need a 4+ charge.

Mr. Walk is mean and gave me tin twice even though he knows that I dislike it. Also, pictures are overrated.