Scin 131 Study guides, Class notes & Summaries

SCIN 131 WEEK 4 QUIZ Complete With Answers Latest Graded 100%. One of the first chemical WMDs, researchers initially produced VX nerve agent for retail sale in the 1950s as a pesticide. Thankfully, your likelihood of coming in contact with VX is extremely low - the world's stockpiles have been destroyed, including the United States' main stockpile in Anniston, AL. The molecular formula for this nerve agent is C11H26NO2PS, and it has a molar mass of 267.37 g/mol. Given this information, wh...

SCIN 131 Exam Quiz 1-3 (Questions with Answers) 2023. My cat weighs 37.0 lbs. Yes, she is a little large. I put her into a bathtub containing 47.0 gallons of water when filled to the very top. After I put her in, I collected all the water that ran over the side of the tub, and found it to be equal to 0.923 gallons. (A) What is the density of my cat in grams per cubic centimeter? (B) What if next time I do this she gains 4.0 lbs. and grows big enough to displace 1.10 gallons. Will she still ...

SCIN 131 WEEK 4 QUIZ (Questions with Answers) Complete Latest Graded 100%. A sample of pure lithium carbonate contains 18.8% lithium by mass. What is the % lithium by mass in a sample of pure lithium carbonate that has twice the mass of the first sample?  A. 75.2%  B. 18.8%  C. 9.40%  D. 37.6% Feedback: Mass percent discussed in Chapter 6.2. Question 5 of 25 4.0/ 4.0 Points `I have some aliens in my basement who have developed a chemical weapon in an attempt to escape....

SCIN 131 Quizzes 1-3 Questions with Solutions Latest Graded 100%. According to the scientific method, what is the next step after forming a hypothesis? A.developing an experiment B.Forming a conclusion C.creating a scientific law D.forming a theory E.none of the above Answer Key: A Feedback: Good. This is the scientific method. Question 2 of 12 4.0/ 4.0 Points Who discovered the law of conservation of mass? A.Albert Einstein B.John Dalton and Antoine Lavoisier C.Antoine Lavoisier D...

SCIN 131 Exam Quiz 1-3 | Questions with Solutions 2023. Express 0.0045 m in scientific notation. A.0.45 × 104 m B.4.5 × 104 m C.4.5 × 10-4m D.4.5 × 103m E.4.5 × 10-3 m Answer Key: E Feedback: Good. Scientific notation is discussed in section 2.2 of the text. Question 5 of 12 4.0/ 4.0 Points The correct prefix for the multiplier 10-15 is: A.femto. B.deci. C.tera. D.pico. E.none of the above Answer Key: A Feedback: Good. Prefixes are discussed in section 2.5 of the text. P...

Li SCIN 131 - Week 7 Lesson Quiz Mar 17, 2021 3 / 3 points `In terms of metallic character, which of these has the least? Question options: Na Cs Rb K 3 / 3 points `In terms of the size of the atom, which of these is the largest? Question options: Rb Na K Li 3 / 3 points During a sunset, molecules interact with light and scatter all but which colors? Question options: purple blue green 3 / 3 points `Which of the following letters represents the principal shell? Question ...

SCIN 131 Week 4 Exam Quiz 2023 (Questions with Correct Solutions) Graded. A sample of pure lithium carbonate contains 18.8% lithium by mass. What is the % lithium by mass in a sample of pure lithium carbonate that has twice the mass of the first sample? • A. 75.2% • B. 37.6% • C. 18.8% • D. 9.40% Feedback:Great! Mass percent discussed in Chapter 6.2. Question 11 of 25 4.0/ 4.0 Points `One of the first chemical WMDs, researchers initially produced VX nerve agent for retail sa...

SCIN 131 Lesson 4 Quiz Question 1 of 12 4.0/ 4.0 Points `In terms of the size of the atom, which of these is the smallest? A.Ne B.Be C.O D.B E.Li Answer Key: A Feedback: Good. See section 9.9 Question 2 of 12 4.0/ 4.0 Points `If you were to put the different wavelengths of the electromagnetic spectrum (as discussed in THIS lesson) in the correct order from shortest to longest, which would be third? A.ultraviolet B.microwaves C.infrared D.x-rays E.radio waves Answer Key: C Fee...

SCIN 131 Lesson 5 Quiz GRADED A /SCIN 131 Lesson 5 Quiz GRADED A /SCIN 131 Lesson 5 Quiz GRADED A

CHEMISTRY SCIN 131 Week 4 Quizess (Questions with Correct Solutions) Nicotine (C10H14N2), a member of the nightshade family of plants, is an oily liquid that makes up between 0.6 to 3% of a cigarette's mass. Contact with the liquid pure form can cause death within hours, as nicotine passes through the dermis and heads directly for the bloodstream. Overdoses and death can easily occur in those smoking cigarettes with nicotine patches applied on their body. How many nicotine molecules are i...