Review Sheet for Test 1

Review Sheet for Test 1 - Review Sheet for Test 1 Produced...

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Unformatted text preview: Review Sheet for Test 1 Produced by Yashar S. Niknafs Devout and Diligent Chemistry Students: The beginning of Chemistry 105 can be a flurry of pandemonium and confusion. My duty is to ensure your safety from the fury of Hurricane Kenney. This first test will cover fundamental information that will reappear frequently throughout the rest of this course and Chemistry 106. Thus, having a firm understanding of the content is important. I will provide a brief romp through chapters one, two, and three. I hope you find this sheet helpful. Yashar Chapter One: Key concepts If you have never taken chemistry before in your life, I would recommend reading through sections 1.1-1.6, but not focusing on these sections. These sections simply provide a brief overview of science in general, and will most likely not be directly tested. A general knowledge of the information in these sections is really good to have, but most of the information I am sure you have been hearing for many years. If you have already taken chemistry, I would recommend focusing all of your time on section 1.7. Dimensional analysis is such an incredibly integral aspect of science, and a solid comprehension of it will be necessary for your success here at Case (if you are a math or science major, or pre-health). You will see this method in Chem 105, 106, 113, and in your physics courses. Ultimately: If you cannot easily convert between semi-complex units (e.g. from m/s to mi/hr, or from moles to atoms, or from grams to moles, or from grams to atoms) please spend some time familiarizing yourself with this concept. Some helpful tips: o Write your numbers as fractions E.g. o To convert, simply multiply your starting product by some form of one. What do I mean by some form of one? Well, if 1 yard = 3 feet, then is equal to one. o You will start with some unit, and have a target unit. So just keep multiplying by one, until you have your desired unit. Example : Convert 60 inches to feet. Starting unit: inches Target unit: feet Notice that multiplying by you are ult imately multiplying by one. If you want practice with this method, there are plenty in your book. Problems 1.31-1.40 are good review . The problems numbered in red are answered in the back of the book. Chapter Two: Key concepts Again, sections 2.1 and 2.2 provide a very fundamental review of the atom. If you have never taken chemistry, read these sections, and understand them, but do not dwell on them. 2.3: I feel that Dr. Kenney covered this section very well in class. If you still do not fully grasp the concept of atomic number vs. mass number, and what isotopes are, reread this section. Very briefly: Atom ic number: number of protons Mass number: number of protons + number of neutrons (atomic number + number of neutrons) Isotope: Atoms of the same element with varying numbers of neutrons DO UNDERSTAND that the atomic mass given on the periodic table is an average of the occurrence of the different isotopes of a given element. of the occurrence of the different isotopes of a given element....
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Review Sheet for Test 1 - Review Sheet for Test 1 Produced...

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