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CHEM 111 Basic Knowledge Exam 69 Questions with Verified Answers,100% CORRECT

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CHEM 111 Basic Knowledge Exam 69 Questions with Verified Answers Bisulfite - CORRECT ANSWER HSO₃⁻ Bisulfate - CORRECT ANSWER HSO₄⁻ Bicarbonate - CORRECT ANSWER HCO₃⁻ Bisulfide - CORRECT ANSWER HS⁻ Dihydrogen phosphate - CORRECT ANSWER H₂PO₄⁻ cyanate - CORRECT ANSWER OCN⁻ thiocyanate - CORRECT ANSWER SCN⁻ cyanide - CORRECT ANSWER CN⁻ nitrite - CORRECT ANSWER NO₂⁻ nitrate - CORRECT ANSWER NO₃⁻ hypochlorite - CORRECT ANSWER ClO⁻ ...

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CHEM 111 Exam 2|53 Questions with Verified Answers,100% CORRECT

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CHEM 111 Exam 2|53 Questions with Verified Answers Name the three periodic trends. - CORRECT ANSWER ionization energy, electron affinity, atomic radius Write a sample equation for the first ionization energy of magnesium. - CORRECT ANSWER Mg → Mg⁺ + e⁻ Which electrons are bound more tightly: core or valence? - CORRECT ANSWER core What is the general trend in first ionization energy across a period? - CORRECT ANSWER increases from left to right What is the general trend in fi...

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CHEM 111 Chapter 1 Science and Measurement 31 Questions with Verified Answers,100% CORRECT

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CHEM 111 Chapter 1 Science and Measurement 31 Questions with Verified Answers Atom - CORRECT ANSWER smallest amount of an element that still has the characteristics of that element matter - CORRECT ANSWER Anything that has mass and takes up space Elements - CORRECT ANSWER the simplest form of matter that has a unique set of chemical and physical properties Compound - CORRECT ANSWER substance formed by the chemical combination of two or more elements in definite proportions ex. H20...

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NOVA CHM 111 Test 1 Exam 63 Questions with Verified Answers,100% CORRECT

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NOVA CHM 111 Test 1 Exam 63 Questions with Verified Answers Matter is... - CORRECT ANSWER Anything that has mass and occupies space (stuff) Mass vs. Weight - CORRECT ANSWER Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object. Scientific Method - CORRECT ANSWER A series of steps followed to solve problems including; 1.) Making an observation 2.) Forming a hypothesis 3.) Preforming an experiment 4.) Cont...

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CHEM 111 Quiz 1 Exam 73 Questions with Verified Answers,100% CORRECT

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CHEM 111 Quiz 1 Exam 73 Questions with Verified Answers Two characteristics of Matter - CORRECT ANSWER Mass and Volume Scales of Matter - CORRECT ANSWER 1. Macroscopic 2. Microscopic 3. Particulate Physical Property - CORRECT ANSWER When an atom or molecule doesn't change -color, taste, melting and boiling point, odor, density Chemical Property - CORRECT ANSWER When the atom or molecules react and the composition of matter changes -flammability, acidity, oxidation, corrosiven...

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Chemistry 111 Chapter 1 Exam 158 Questions with Verified Answers,100% CORRECT

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Chemistry 111 Chapter 1 Exam 158 Questions with Verified Answers Define science. - CORRECT ANSWER Knowledge; Specifically, knowledge gained through experience or experiment (empirical knowledge). Science is both an activity and the result of the activity Define chemistry. - CORRECT ANSWER The study of matter and its changes and interactions with other matter and with energy. Define scientific method - CORRECT ANSWER Investigations that are guided by theory and earlier experiments. ...

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CHEM 111 Test 1 Exam 137 Questions with Verified Answers,100% CORRECT

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CHEM 111 Test 1 Exam 137 Questions with Verified Answers Solids - CORRECT ANSWER particles are close and organized, fixed shape Liquids - CORRECT ANSWER particles are close but unorganized, varying shape Gas - CORRECT ANSWER particles are far apart and unorganized, varying shape Physical changes - CORRECT ANSWER done alone. ex: melting point, density, electrical conductivity (ice berg) Chemical changes - CORRECT ANSWER interaction with another substance. ex: chemical reaction/chan...

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General Chemistry 111: Test 1 Exam 54 Questions with Verified Answers,100% CORRECT

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General Chemistry 111: Test 1 Exam 54 Questions with Verified Answers The Scientific Method (systematic study) - CORRECT ANSWER 1) Observations 2) Hypothesize 3) Test 4) Evaluate 5) Re-test Structure of the Atom - CORRECT ANSWER protons and neutrons are located in the nucleus, electrons are distributed about the nucleus to make the atom Physical Properties - CORRECT ANSWER appearance, color, taste, odor, melting point, and boiling point Chemical Properties - CORRECT ANSWER rusti...

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CHEM 111 TEST 102 Questions with Verified Answers,100% CORRECT

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CHEM 111 TEST 102 Questions with Verified Answers As part of the calibration of a new laboratory balance, a 1.000 g mass is weighed with the following results: Trial 1: 1.201 +/- 0.001 Trial 2: 1.202 +/- 0.001 Trial 3: 1.200 +/- 0.001 The balance is: - CORRECT ANSWER Precise but inaccurate ______ are substances with constant composition that can be broken down into elements by chemical processes. - CORRECT ANSWER compounds Which of the following is not a unit in the SI system? - COR...

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CHEM 111 Final Exam 53 Questions with Verified Answers,100% CORRECT

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CHEM 111 Final Exam 53 Questions with Verified Answers Know your significant figure rules - CORRECT ANSWER ALL zeroes between non-zero numbers are ALWAYS significant. ALL zeroes which are SIMULTANEOUSLY to the right of the decimal point AND at the end of the number are ALWAYS significant. ALL zeroes which are to the left of a written decimal point and are in a number >= 10 are ALWAYS significant. define calorimetry - CORRECT ANSWER the act of measuring heat required or evolved during ...

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