______ 1. Chemistry is a natural science that deals with the study of a. living things and their life processes. b. the physical features of Earth. c. the composition‚ structure‚ properties‚ and changes of matter. d. the composition‚ motion‚ and relative positions of stars and planets. ______ 2. The branch of chemistry in which the compositions of materials are identified is known as a. biochemistry. b. organic chemistry. c. physical chemistry. d. analytical chemistry. ______ 3. Which
Free Chemistry Chemical substance Mixture
being in love with someone so deeply that you want to spend the rest of your life with that person‚ and ask for his or her hand in marriage. But you aren’t able to because you and your lover are of same sex‚ and live in a state like Texas where gay marriage is prohibited. There is a loophole though‚ you do have the option of traveling one thousand miles to the closest state that allows you to wed. Initially‚ some people may think that’s okay‚ it’s just another adventure in your life right? But‚ think
Premium Same-sex marriage Homosexuality Marriage
How has the study of chemistry affected the lives of ordinary people? Every single day‚ without even realising it‚ we use so many things that are brought to us by the discoveries and advances in chemistry. Many of these things we take for granted‚ and don’t even bother to question how it got there‚ why it is there‚ and how it works. Chemistry makes up everything in our lives‚ from the air that we breathe‚ to the plastic on the keyboard I’m typing on now‚ and a in depth study of some of the wonderful
Premium Nuclear weapon Atomic bombings of Hiroshima and Nagasaki Nuclear fission
Chemistry 12 Unit 2 Notes - Equilibrium Chemistry 12 Tutorial 5 – The Equilibrium Constant (Keq) What is Keq ? The "K" in Keq stands for "Constant". The "eq" means that the reaction is at equilibrium. Very roughly‚ Keq tells you the ratio of Products/Reactants for a given reaction at equilibrium at a certain temperature. [Products] [Reactants] K eq = It’s not quite this simple when we deal with real substances. Let’s take an example. It has been found for the reaction: 2HI(g )
Premium Chemical equilibrium Thermodynamics Chemical reaction
Chemistry and Society CHM/110 Xavier Villarreal November 6‚ 2011 Chemistry is a vast quantity of a person’s everyday life. A person can find chemistry in his or her daily life in the foods that a person eats‚ air a person breathes‚ soap‚ and accurately everything a person comes in contact with. Chemistry is significant in everyday life because chemicals make up everything in life. For example‚ a person’s body‚ pet‚ a desk‚ the sun‚ food‚ and drugs a person may take‚ to name a few. A person
Premium Accuracy and precision Measurement
The importance of chemistry‚ or any other area of study‚ depends entirely on how relevant it is to some desired outcome. If you wished to create a new type of plastic‚ chemistry would be highly important‚ but if you wished to develop a new music genre‚ chemistry would probably be of no importance at all. It is extremely important. That aspirin or tylenol you may take for a headache was made by chemists‚ as are antibiotics‚ and other prescription meds. Not only are chemists in the drug trade‚ but
Premium Chemistry Molecule
The gifts of chemistry are a boon to mankind. Its applications in home and industry are many. Right from purified drinking water and motor car to cane sugar and mobile phone‚ all these have been made possible only through processes in chemistry at some stage or other of production. New discoveries‚ processes‚ and products are an integral part of this fascinating discipline. It offers a fertile ground for those endowed with intellectual curiosity and a passion for scientific research. you must
Premium Chemical reaction Chemistry Influenza
from valves to electronics‚ down to microelectronics and quantum computing. It mirrors the downsizing in focus in the biological sciences‚ from cells to genomics. Conversely‚ achievements in chemistry have been converging into the nanometre range from below – from atoms and molecules to supramolecular chemistry. Nanochemisty focuses on the unique properties of materials in the 1–100 nm scale. The physical‚ chemical‚ electrical‚ optical and magnetic properties of these materialsare all significantly
Premium Nanotechnology Chemistry
Chemistry and cosmetics Cosmetics have been around since almost the beginning of time. Egyptian women used kohl to darken their eyelids‚ Cleopatra was even said to have bathed in milk to achieve a soft smooth completion. In Greece‚ women used lead carbonate (a white powder) to obtain a pale complexion‚ which probably wasn’t worth it seeing how it cost them their lives! Anyway‚ cosmetics are no modern phenomenon! Today it is a big business‚ making about $12 billion
Premium Cosmetics Perfume
Polymer Chemistry Classification of Polymers – Notes prepared by The most common way of classifying polymers is to separate them into three groups - thermoplastics‚ thermosets‚ and elastomers5. The thermoplastics can be divided into two types - those that are crystalline and those that are amorphous. You may click on the words in the diagram below to learn more about these classifications. Thermoplastics Molecules in a thermoplastic are held together by relatively weak intermolecular
Premium Polymer