Hi my name is Janette Medina and today I will present the glucose molecule. Okay the glucose is a source of energy for the body. It's considered a carbohydrates. Also it's a mono-saccharide. It's meaning it only has one molecule of sugar. Usually glucose is found in a lot of foods. It can be found alone or combined. A lot is difficult to find it but I found this product on the store that it has the extros. That is a way that we know glucose as a disc strokes. Also grape sugar. We know glucose as a grape sugar. The glucose can be found as a disc acaride. That is a great. It can be found with other glucose and it can be found with fruit. That is the sugar of the fruits. It forms sucrose. It can be found as glucose plus other sugar that is galactose to form lactose. Lactose is the sugar of the milk. Many people are in tolerant to this kind of sugar. For our formula for glucose is 6 carbons, 12 hyalurgens and 6 oxygens. The glucose has different bonds. It has bonds between carbon and hydrogen. That is a global-strong covalent. It has bonds between carbon and oxygen. That is covalent and polar. Why? Because the oxygen has a higher electronegativity so the electrons are pulled out by the oxygen mostly. That is covalent. We have also the bonds between oxygen and hydrogen. That is a weekly covalent but also polar. First we have carbon and we need 6 moles of carbon. This is our Lewis structure. It is represented by carbon. That is in red and carbon has 4 valence electrons. We have 1, 2, 3 and 4. This is a 3-dimensional configuration of carbon. It has all 4 valence electrons and it makes an angle of 1, 109.5. Then we need also over hydrogen to all moles. This is the configuration of the hydrogen. Hydrogen has only 1 valence electron. That is represented by this white dot. This is the 3D configuration. It makes a bond of 180 degrees. Also we will need 6 oxygens. For our oxygens, the oxygen has 6 valence electrons. We have 1, 2, 3, 4, 5, 6. This is a Lewis configuration. And this is a 3-dimensional configuration. It also has a bonding angle of 109.5 degrees bonding between oxygen and oxygen. It can be 120 degrees if it is bonding with other elements. So we have 1, 2, 3, 4, 5, 6 valence electrons of oxygen. We need carbon, hydrogen, hydrogen and oxygen. So we will represent the glucose has a linear configuration. But it also has a ring configuration that has 6 carbons and because it has 6 carbons, it is also called an exhaust. Today we will talk about the ring configuration. We have our first carbon that has a bond to the hydrogen. Remember that this bond is strongly covalent. Also this first carbon has a bond with carbon. The carbon has a bond with oxygen and the oxygen has a bond with hydrogen and this carbon has a bond with other hydrogen and hydrogen. So it is the first bond. It is hydrogen, carbon, oxygen, hydrogen with an hydroxide group over carbon hasa. So this is our first so between carbon and hydrogen we have a covalent, strongly covalent, between carbon and oxygen. We have a covalent polar and we have here two pairs of electrons that they are not bonding. So 1, 2 and also we have three moles of oxygen. So represented 3D we have it here. This is so well model of glucose. So we have one carbon, two carbon. This is our first carbon. So we have one, two, three and four electrons and this is bond with our hydrogen in this part. So we have our hydrogen, our bonding with other carbon. So we have one, two, three, four electrons bonding with an hydrogen and you can see the hydrogen has one, two, three, four, two pairs of electrons that they are not bonding with nothing but we have one electron that is bonding with that hydrogen. So this is the electron of the hydrogen and this is the electron of the oxygen bonding with the carbon. And this carbon at the same time has to bond with hydrogen. So hydrogen and carbon are strongly covalent. So then we have our second carbon. Most of the carbons they are going to bond with hydrogen.