Chem 104 final - Study guides, Class notes & Summaries

Chem 104 Final Exam Elaborations – Questions & Answers

Chem 104 Final Exam – Questions & Verified Answers

Chem 104 Final Exam; Questions and Answers 100% Solved Which one of the following is NOT an organic substance? Correct answer-salt, sodium chloride Carbon atoms always have how many covalent bonds? Correct answer-4 C6H12 Correct answer-insoluble in water, liquid at room temp Ca(NO3)2 Correct answer-melts at 500*, produces ions in water What is the condensed structural formula for an alkane with four carbon atoms? Correct answer-CH3-CH2-CH2-CH3 Which of the following compounds could ha...

CHEM 104 Final Exam (Hill); Questions and Answers 100% Solved Is air a mixture or a pure substance? Correct answer-Mixture Mixture Correct answer-a physical combination of two or more substances present in variable amounts Composition of Air Correct answer-78% Nitrogen, 21% Oxygen, 1% Argon and CO2 Air Particles unchanged by respiration? Correct answer-Nitrogen and Argon Air Particles changed by respiration? Correct answer-Oxygen and CO2

CHEM 104 Final Exam; Questions and Answers 100% Solved How many moles of hydroxide ions are there in 25 mL of 0.010M solution of Ba(OH)2? a. 7.5 x 10-1 mol b. 5.0 x 10-1 mol c. 2.5 x 10-1 mol d. 5.0 x 10-4 mol e. 2.5 x 10-4 mol Correct answer-d. 5.0 x 10-4 mol What is the molarity of a solution that contains 46 grams of Na2SO4 (Mw = 142 g/mol) dissolved in enough water to make 750 mL of solution? a. 2.3M b. 0.60M c. 0.52M d. 0.43M e. 0.19M Correct answer-d. 0.43M

CHEM 104 Final Exam; Questions and Answers 100% Solved A sample of aluminum contains 2.91 × 1022 atoms of aluminum. What is the mass of this sample? [Molar mass: Al, 26.98 g/mol] Correct answer 1.30 g What is the number 3,000 written in scientific notation using the proper number of significant figures? Correct answer 3 × 10^3 Which statement about the modern periodic table is FALSE? Correct answer Elements in the same period share similar chemical and physical propertie

Chem 104 Final Exam: Questions With Comprehensive Answers

Chem 104 Final – Questions & Complete Correct Solutions

Chem 104 Final Exam Review; Questions and Answers 100% Solved Which of the following scenarios is expected to have the smaller DQ (Desirability Quotient)? Also Explain what could have been done to increase the DQ for your selected scenario Scenario 1: A dental patient has one set of x-rays done each year Scenario 2: A dentist stays in the room with each patient as x-rays are taken Correct answer-Scenario 2. To increase the DQ the dentist should leave the room or wear a lead vest What e...

CHEM 104 Final Exam Questions With Solutions