There are four different elements and they are 11 carbon, 17 hydrogen, 3 nitrogen and 8 oxygen.…
Nitrogen forms a number of different compounds with oxygen, depending upon the experimental conditions. This type of observation concerning the behavior of matter is summarized by…
Introduction: The equation H2 + O2 H2O is unbalanced because there are two oxygen atoms…
BIOLOGY STUDY GUIDE CHAPTER 4– THE CHEMICAL BASIS OF LIFE Matter = anything that takes up space and has mass (major types of matter = solid, liquid, and gas) Any type of matter is made of one or more elements. o Element = a substance that cannot be broken down into other substances by regular chemical processes. (examples: gold, silver, mercury, etc.) There are approximately 25 elements necessary for life. • Examples: oxygen, carbon, hydrogen, nitrogen, calcium, phosphorous, etc. • Trace elements = those elements that make up less than 0.01 percent of your body mass (examples: iodine, iron, copper, etc.) Compounds = a substance containing two or more elements; these elements are always present in this compound in the same ratio o For instance, water is a compound where hydrogen and oxygen are combined. The ratio of hydrogen to oxygen in water is always 2:1. (Remember that the chemical formula of water is H2O.) o Compounds have different characteristics than the elements that make them up. (Water is liquid at room temperature, but when hydrogen and oxygen are by themselves, they are gases at room temperature.) Atoms = smallest possible piece of an element o A better definition of an atom may be: the most basic unit of matter that cannot be broken down into smaller pieces by ordinary chemical methods. o This can be confusing, because when you read the above definition or when you start looking at the periodic table in class, is oxygen an atom or an element? o An element is essentially the same as an atom. Why do we bother with two different words? • An element is the most common version of an atom. The element you see on the periodic table for oxygen is the most common version of the oxygen atom that exists in nature. There are several different kinds of oxygen atoms (with different numbers of neutrons than the one found on the table), but they are not as commonly found in nature. All atoms are made of even smaller…
Instructions: Enter the Virtual Lab, and conduct the experiments provided before going out into the virtual field for additional research. Please type your answers on this form. When your lab report is complete, submit it to the Submitted Assignments area of the Virtual Classroom.…
Z. Wojnarowska, K. Grzybowska, K. Adrjanowicz, K. Kaminski, M. Paluch, L. Hawelek, R. Wrzalik, and M. Dulski, W. Sawicki, J. Mazgalski and A. Tukalska, T. BiegMolecular Pharmaceutics 2010, 7 (5), 1692-1707…
project shows an interesting way of finding out. The atmosphere contains the oxygen we need…
• The Lewis and Clark The National Bicentennial Exhibition gave a lot of information starting from the first day of their adventure, giving insight on how real it was and what they needed and saw in their journey.…
The subscript 2 of oxygen and nitrogen indicate the number of oxygen atoms and nitrogen atoms. So the oxygen molecules present in the atmosphere have two oxygen atoms and the nitrogen molecules have two nitrogen atoms.…
because most of the world's oxygen is found in water, oxides of metals, and as…
If there is an atom that has 8 protons and 8 electrons, then it is an oxygen element. If it has 1 proton and 1 electron, then it is a hydrogen element…
Undoubtedly, the most important component to human health and vitality of oxygen. In fact, human life would not be possible without it: oxygen produces ATP (adenosine triphosphate) and within ATP our bodies would immediately shut down. When a person breathes, there is an exchange of carbon dioxide and oxygen. The oxygen, which is taken in by the body from the atmosphere around us, is picked up by the hemoglobin in the blood and distributed to all of the body’s trillions of cells where it is then used to fuel the fuel and release energy (ATP or adenosine triphosphate).…
Breathe is a great book, published by Cliff McNish. My personal rating on this book is a 9 out of 10. A young son was courious about the activity and the noises he would hear in the house, he wanted so badly to find what it was but his mother would tell him not to worry about it,…
1. Transport and Storage Proteins: Molecular part is belongs to the group of Proteins, but they are not enzyme and perform the transport and storage function. Myoglobin (Fe), Hemoglobin (Fe), Hemocyanin (Cu), Cytochromes (Fe) and Blue copper (Cu) Proteins are some examples. 2. Enzymes: Molecular part is belongs to the group of Proteins, and also they are enzymes. They perform the catalytic function. According to the type of…
| First and foremost, society will immediately be affected by the rise in fuel prices because consumer products will be more costly and this leads to an increase of vice activities. This is because basic necessities such as rice, flour, sugar and so on will be in great demand and some warehouses will store or hoard the items to further increase the price of the product. Moreover, in the newspapers today, reports of smuggling of these items prove that this vice activity is on the rise. Therefore, the fuel price increase had definitely caused more hardships to society today.…