Peer review is a critical component of how scientists communicate what they have

Question

Peer review is a critical component of how scientists communicate what they have learned and contribute new knowledge. What is peer review? Why do you think that scientists believe it is important for published work to be peer reviewed prior to publication? Why is peer review an important part of a process of chemists considering benefits and risks? Why might peer review be important in chemists reporting results of a chemical process? Prelab Part I: Access the following simulation and then answer the questions below pertaining to percent yield. http:/lgroup.chem.iastate.edu/Greenbowe/sections/projectfolder/percenttutorial htm The simulation linked here steps students through calculating the number of waters of hydration in copper (II) sulfate pentahydrate Prelab Part II Questions: 1. What is a su hat is a substance? What is a mixture? How are they related? What are the general characteristics of substances chemists use to individual substances? use to separate mixtures into 2 ow are the two ways of measuring the efficiency of a reaction the same? How do they differ? 3. How a

Explanation / Answer

1) Substance is the type of matter that has uniform properties since made up of only one type of material whereas mixture is made by mixing different substances

They are related since mixture contains lots of substances.

2) The method of seperating substances from the mixtures depend on the type of substances interacted to form the mixture

Some of the common methods used to seperate mixtures into individual substances

a) Distillation

b) Filtration

c) Chromatography

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