The components of a mixture usually can be separated

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The components of a mixture usually can be separated by physical means such as distillation, evaporation, etc. Compound Iron sulfide (Pyrite or Fools Gold) However, if: a. seven parts iron filings or powder are mixed with four parts powdered sulfur b. mixture is heated to a red glow c. iron and sulfur form a compound - iron sulfide; chemically combined, not readily separated. From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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Solutions Solutions are mixtures in which one substance is dissolved in another. Solutions have two parts: solute and solvent Q: Which is the substance that is dissolved? So the substance that does the dissolving is called the _____. (Remember water, the ‘universal solvent’?) ____________ - A measure of how much of a given substance will dissolve in a liquid. A substance that does not dissolve in water is called insoluble . Example: Oil is insoluble in water. A substance that does dissolve in water is called soluble . Example: Sugar is soluble in water. From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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Confused? Here are some links to fun resources that further explain Chemistry: Inorganic Chemistry Main Page on the Virtual Cell Biology Classroom of Science Prof Online . “She Blinded Me With Science” music video Thomas Dolby. “What Kind of Bonds Are These?” song and slide show by Mark Rosengarten. Chemical Bond Formation animated science tutorial. Meet the Elements music video by They Might Be Giants. Redox Reactions video lecture by Kahnacademy. Chem4Kids website by Rader. Neutron Dance …a so-bad-its-good ’80s music video by The Pointer Sisters. (You must be in PPT slideshow view to click on links.) Want to see me sing the Element Song ? Image: Daniel Radcliff by Joella Marano From the Virtual Cell Biology Classroom on ScienceProfOnline.com
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Assignment At the end of most lectures, I will give you some type of in-class assignment or homework to evaluate your understanding of that day’s topic. This assignment will always be open-book. Today, if assigned, you will be completing an essay question on the topic of Inorganic Chemistry . From the Virtual Cell Biology Classroom on ScienceProfOnline.com See the ScienceProfOnline Virtual Cell Biology Classroom: Inorganic Chemistry Lecture for a printable Word .doc of this assignment.
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Are you feeling blinded by science ? Do yourself a favor. Use the… Virtual Cell Biology Classroom ( VCBC ) ! The VCBC is full of resources to help you succeed, including: practice test questions review questions study guides and learning objectives PowerPoints on other topics You can access the VCBC by going to the Science Prof Online website www.ScienceProfOnline.com Images: Blinded With Science album, Thomas Dolby; Endomembrane system , Mariana Ruiz, Wiki
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