CHEM 120 (chem120)
Chamberlain College Of Nursng
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CHEM 120 Chamberlain EXAM 1 Questions And Correct Answers Already Passed!!
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CHEM 120 Chamberlain EXAM 1 
Questions And Correct Answers 
Already Passed!! 
Hypothesis 
 : a testable educated guess 
Experiment 
 : how we test hypotheses 
Variable 
 : Idea to be tested (only one) 
Control 
 : Something the variable is tested against 
Experimental protocol 
 : How do you do the test? 
Results 
 : Data generated comparing variable to 
controls. Includes statistics to show results are 
meaningful 
Conclusion 
 : Interpretation of results 
Independent variable
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CHEM 120 Week # 1 DQ 1 – Scientific Method and Calculations
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CHEM 120 Week # 1 DQ 1 – Scientific Method and Calculations 
 
CHEM120 Week 1 
 
Scientific Method & Calculations 
 
Let’s explore the scientific method. Here is the situation: We are planting a garden. We have a variety of bulbs & potted plants. We do not have any directions on how or when to plant each of these items. We do not have any gardening books, magazines, or access to the Internet (Oh, the horror!). We need to observe a number of characteristics for these plants. 
 
What are some...
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CHEM 120 TESTS COMPILATION BUNDLE
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CHEM 120 TESTS COMPILATION BUNDLE
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CHEM-120 CHAMBERLAIN FINAL EXAM| 526 QUESTIONS| WITH COMPLETE SOLUTIONS
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Chemistry correct answer: The study of the properties of matter and how matter changes 
 
Basic Unit in Chemistry correct answer: atom 
 
Types of Chemistry correct answer: Green Chemistry 
Sustainable Chemistry 
 
green chemistry correct answer: uses materials and processes that are intended to prevent or reduce pollution at its source 
replacing rare hazardous with more abundant less hazardous 
 
Example of green chemistry correct answer: replacement of mercury fluorescent light bulbs wi...
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Chemistry 120 Test 4| 168 Questions| With Complete Solutions
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produces H+ in water correct answer: acid 
 
is named hydroiodic acid correct answer: acid 
 
is named magnesium hydroxide correct answer: base 
 
turn phenolphthalein pink correct answer: base 
 
conducts an electrical current correct answer: acid and base 
 
properties of acids correct answer: dissolve many metals, taste sour, turn litmus paper red 
 
properties of bases correct answer: taste bitter, turn litmus paper blue, feel slippery 
 
strong acids correct answer: HCl, HI, HNO3, H...
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CHEM 120 Exam 4 Questions With Complete Solutions
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Hydrocarbons correct answer: contain only carbon and hydrogen 
 
Alkanes correct answer: single bonds, saturated, sp3 hybrid, tetrahedral, 109.5 deg, sigma bonds only, free rotation about C 
 
Alkenes correct answer: double bonds, unsaturated, sp2 hybrid, trigonal planar, flat, rigid about C, pi bond, polyunsaturated:many double bonds 
 
Alkynes correct answer: triple bonds, unsaturated, sp hybrid, linear 
 
Aromatic correct answer: benzene ring, unsaturated 
 
Structural Formula correct an...
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JMU chemistry 120 test 2 Wilson Questions With Complete Solutions
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carbonate correct answer: CO₃²⁻ 
 
nitrite correct answer: NO₂⁻ 
 
nitrate correct answer: NO₃⁻ 
 
Hypoclorite correct answer: ClO⁻ 
 
Phosphate correct answer: PO₄³⁻ 
 
sulfite correct answer: SO₃²⁻ 
 
sulfate correct answer: SO₄²⁻ 
 
ammonium correct answer: NH₄⁺ 
 
acetate correct answer: C₂H₃O₂⁻ 
 
oxalate correct answer: C₂O₄²⁻ 
 
cyanide correct answer: CN⁻ 
 
hydroxide correct answer: OH⁻ 
 
Hydrogen Carbonate correct answer...
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Chem 120L Exam Review Questions With Complete Solutions
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What do you need to accomplish before you can start the lab? correct answer: WHIMIS 
 
Things to do to prevent accidents/injury? correct answer: Pay attention to instructions 
Never leave equipment unattended 
Keep work area clean 
Wipe spills immediately 
No personal belongings on top 
Learn disposal and handling requirements of chemicals 
Keep hands from touching self after working with chemicals 
Make sure all equipment works sufficiently 
No food or drink in lab 
 
Make sure to wear: 
- Sa...
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CHEM 120L Study Guide Questions With Complete Solutions
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What is the recommended protective clothing for the lab? correct answer: Safety goggles: 
-slash proof safety goggles are required and give the max protection from spills and flying objects 
 
Footwear: 
-shoes that fully cover the feet 
 
Lab coats: 
-not required but strongly recommended to protect skin and clothing 
 
-long hair must be tied back no food or drink 
 
Describe the first aid used for chemicals on the skin, eye and cut/abrasions/burns correct answer: -in general best course ...
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CHEM 120 Exam 1 Questions And Answers
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Celsius formula - C= (F-32)/1.8 
 
Kelvin formula - K=C+273.15 
 
density formula and units - D (g/mL, g/L, Kg/m^3)= M (kg) / V (m^3, cm^3, L , mL) 
 
Precision - a measure of how close a series of measurements are to one another 
 
Accuracy - how close a measurement is to the true value 
 
Law of Conservation of Energy - Energy cannot be created or destroyed 
 
kinetic energy formula - KE=1/2mv^2 
 
Endothermic - Absorbs heat 
 
Exothermic - Releases heat 
 
pure substance - Cannot be purified,...
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