Help please! Can you check my answers ASAP!?
Again, too many of these are wrong ... there is no reason to actually tell you are the right answers. If you had actually looked for the answers in a search you would be able to answer at least 80% if not all of them. No one should take time to look up all these things or type all the right answers, etc you need to at least put in effort to actually answer these.
5 types of Chemical Reactions?
combination reaction decomposition reaction combustion reaction single-displacement reaction double-displacement reaction
Briefly describe the process of the hydrolysis reaction for carbohydrates?
H and -OH from water are added across the glycosidic bonds.
What reactions are exothermic and endothermic?
Ok, since you say you needed "what" reactions are exothermic and endothermic. Ok, firstly, Definitions. Exothermic are Bond Forming Endothermic are Bond Breaking. Once you have got these two facts,we can now go ahead to find out what reactions are Exothermic and Endothermic! Endothermic Reactions : 1) copper(II) carbonate ------------> copper(II) oxide + carbon dioxide 2) calcium carbonate ------------> calcium oxide + carbon dioxide 3) lead(II) carbonate ------------> lead(II) oxide + carbon dioxide 4).... 5).... (notice that one compound is actually undergoing endothermic reaction to break its compound into simpler compounds.... ) (do some research please.. I did my half.) Exothermic Reactions : 1) magnesium + HCL -----> magnesium chloride + hydrogen gas 2) sodium hydroxide + HCL ----> sodium chloride + water 3) methane + oxygen ----> carbon dioxide + water 4).... 5).... Like wise, please, dont just copy, you got to go read your textbook or go search on the internet for help. Hope i helped you! :)
What are some polite alternatives to "ASAP"?
Please reply promptly.Your quick attention is appreciated.This is a time-sensitive matter.Your earliest attention would be appreciated.May I have a reply by return of post/e-mail. In Britain, and especially in London of the 20s, 30s and 50s, post was delivered 3 times a day. You could send a letter, receive a reply and reply to that in the space of 8 to 12 hours. That is one of the reasons the British of that generation were such great letter writers. Mail was often sorted in the mail car of the passenger trains carrying letters along the line, and those for a particular city were dropped off on the way. While the cost of post was relatively higher than it is today, it dispensed with all bulk mail and advertising which consumes so much time and effort and is in my view subsidised by regular post. Back then it was purely letters and parcels.Dispensing with bulk mail would shrink the Post Office, laying well paid people off, but would also speed the process up immensely, and make it vastly more efficient.I had a summer job in a post office, and I don't think I've ever worked harder.
Which statement best describes a catalyst?
A catalyst is a product of a fast reaction. A catalyst is consumed in very large amounts. A catalyst lowers the activation energy of a reaction. A catalyst slows down the reaction.