W: Yes, it is. I went through three months of language training after I first arrived in this college, and now I'm a psychology student here. Today I've come to visit my teacher in the language centre. How long have you been here? M: Only a week. W: Oh, not long. Where do ...
M: I know. It’s in the chemistry building, right? My biology class is in the same building. Text 4 W: Is there anything else you want? M: No, thank you. By the way,in case there’s a problem with this air conditioner, can I return it? W: Yes, but you must return it with...
Many of these are called extremophiles. They live in very strange places, in polar ice or in a boiling water of hot springs or in water so salty other organisms couldn’t live there. Extremophiles tend to have a different chemistry from other bacteria, a chemistry that in some case is act...
Traditionally bases have a bitter taste while acids are sour, but in chemistry, the definitions have evolved so that substances are either bases or acids using their chemical properties. This classification is important because acids and bases can react to form salts, and they are the basis of ...
Step 6 Open and !The science of ice cream you add salt the ice, the chemistry between the two force the ice to melt. Before the ice can melt, need borrow heat from the around it. This is called an endothermic process (吸热过程).When all the things in the small bag get colder ,...
Pure substances composed of two or more elements are called compounds.Because they contain two or more elements,compounds,unlike elements,are capable of being decomposed into simpler substances by chemical changes. The ultimate chemical decomposition of compounds produces the elements from which they are...
Majors interested in research can pursue theses and work with faculty members on projects. How to Know if This Major Is the Right Fit for You Chemistry majors should be prepared to face a challenging curriculum as they develop a deep understanding of the matter that makes up the world. ...
What is metamerism in chemistry? Non-Terminal vs. Terminal Functional Groups: Functional groups found on organic molecules can be positioned in two general ways. Some types of functional groups, such as alcohols (-OH), Carboxylate Acids (-COOH) or aldehydes (-CHO), are always found on one ...
M: Yes. When is the next train to London? W: Oh, let me check. It leaves in 20 minutes. M: One ticket, please. Text 4 W: Charlie, do you know a restaurant called Bravo? M: Bravo ... I know the name...
An error in analytical chemistry is the numerical deviation of a figure obtained during an actual experiment and the true theoretical value. As...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough homework...