Chapter Two Chemical Compounds

Covalent bonding - Covalent bonding is when two atoms share electrons this can only occur between two non-metals. They share electrons to fill up their outer shells, this makes the atoms stable. A Covalent bond can form up to one to three Covalent bonds with non-metals depending on how much electrons they possess. They don't always share electrons

All matter is made of particles called atoms. An atom is smallest unit of matter. A matter can be solid, liquid or gas. When a group of atoms bond together this makes a molecule. The molecule is the base of chemical compounds that is involved in chemical reactions.

To begin, the solubility of the unknown compound in water was tested. If the compound is soluble in water, it can be inferred that it is either a polar covalent or ionic compound.

The electrons on the outer shell are called valence electrons and are the ones who form chemical bonds with other

Atoms are the basic building blocks of all matter(Doc.3). These small particles have a nucleus and a certain number of protons ,neutrons ,and electrons(O.I). The number of protons is independent to the element, and can be used to find it on the periodic table(Doc.2). Protons are positively charged particles(Doc.3).

By: Andrew Barton Periodic Table of Elements The periodic table was created in 1869 by Dmitri Mendeleev. He developed the table to illustrate the trends in properties of then known elements. The periodic tables purpose is to summarize the properties of real elements.

Many people do not realize that chemistry is a part of our day to day lives. One specific thing we see on a daily basis is the colors and paint people use in paintings, on buildings, and any other place paint could be. When this paint is developed, the people who make it have to decide exactly what the compound should be made up of. This is an important thing to consider when making these paints because as discussed in Chemistry 101 lab, compounds are different things that develop one item, in this case it is paint. They have to make sure that the paint is homogenous because if it was heterogeneous when being applied, the paint would not go on well.

The entire activity was visually appealing to the students. As they transitioned to the computer labs, they observed that a covalent bond was composed of 2 valence electrons. They also noticed that some molecular compounds like N2 can form 3 covalent bonds because there are 6 valence electrons shared between each

The more the number of features met, the more consistent the description of an interaction as a halogen bond is. [4] In a typical halogen-bonded complex R–X…Y: • The interatomic distance between X and the appropriate nucleophilic atom of Y tends to be less than the sum of the van der Waals radii. • The length of the R–X covalent bond usually increases relative to the unbonded

The scientists discovered four Nitrogenous bases of DNA; Adenine, Guanine, Cytosine, and Thymine. Also, we can’t forget about Uracil which replaces Thymine, but that’s in RNA only! Along with how Adenine pairs with Thymine and Guanine pairs with Cytosine. But what’s very intriguing about these four bases is how they received their names. Compounds mainly receive their names from their place of origin where they were originally from.

A covalent bond is a when 2 nonmetals combine together. A ionic bond is when a metal and nonmetal combine together to form a compound. NaCl is an ionic bond because Na (sodium) is a alkali metal, while Cl (chlorine) is a nonmetal. SCl_2 is an ionic bond because S (sulfur) is a nonmetal and Cl (chlorine) is also a nonmetal. There are 2 types of covalent bonds: Polar covalent and non polar covalent bonds.

Properties of Ionic and Covalent Substances Lab Report Introduction The purpose of this lab was to determine which of the following substances: wax, sugar, and salt, are an ionic compound and which are a covalent compound. In order to accurately digest the experiments results, research of definitions of each relating led to the following information: ionic compounds are positive and negatively charged ions that experience attraction to each other and pull together in a cluster of ionic bonds; they are the strongest compound, are separated in high temperatures, and can be separated by polar water molecules. A covalent compound forms when two or more nonmetal atoms share valence electrons; covalent compounds are also

In this experiment, provided the different solids, the objective was to categorize these solids either as an ionic or a covalent bond. This was accomplished through testing the solubility, conductivity, and the melting points of each substance. Based on the results from each test and knowing the properties of an ionic and covalent bond, the solids were grouped together according to the similarity of their properties. This lab provided the learning experience of being able to easily decipher between ionic and covalent compounds. This experiment helped in recognizing the specific and unique properties of each compound.

In science, an ionic compound is a concoction compound made out of particles held together by electrostatic powers named ionic holding. The compound is unbiased by and large, yet comprises of emphatically charged particles called cations and adversely charged particles called anions. These can be basic particles, for example, the sodium (Na+) and chloride (Cl−) in sodium chloride, or polyatomic species, for example, the ammonium (NH+ 4) and carbonate (CO2− 3) particles in ammonium carbonate. Singular particles inside an ionic compound more often than not have different closest neighbors, so are not thought to be a piece of atoms, but rather some portion of a ceaseless three-dimensional system, normally in a crystalline structure. Ionic mixes containing hydrogen particles (H+) are named acids, and those containing essential particles hydroxide (OH−) or oxide (O2−) are named bases.

Molecules tend to tie with different particles to get solidness. Much the same as in Ionic holding, Covalent holding shapes mixes which are brought into utilization once a day. This can be found as gasses, fluids, or solids and are surrounding us. Not at all like in ionic, they are not dissolvable in water. The iotas of materials with covalent bonds are bound firmly to each other in stable atoms, yet, they are for the most part not extremely pulled in to different particles in or around the material.