Chem 101 exam 1 - Study guides, Class notes & Summaries

Chem 101 Ivy Tech Midterm Exam| Questions with Correct Answers Which of the following is considered a hypothesis (as opposed to an observation)? Correct Answer: Birds can fly because they have hollow bones Which of the following would be considered a theory? Correct Answer: Helium balloons float because helium is less dense than air. Which of the statements below is NOT part of the scientific method? Correct Answer: All of the above steps are part of the scientific method. Which stat...

Fire Officer I EXAM LATEST ACTUAL EXAM QUESTIONS AND ANSWERS (100% VERIFIED ANSWERS) | GRADED A+. What are the 5 types of building construction? - CORRECT ANSWER Type 1- fire resistive Type 2- non combustible Type 3- ordinary Type 4- heavy timber Type 5- wood frame -Type 1 and 2 are non combustible -Type 3, 4, and 5 are combustible Fire drills in schools - CORRECT ANSWER Done monthly, different times of day Rough drawing of building is called - CORRECT ANSWER Field sketch Microwave ...

WSU Chem 101 Exam 2 Nishida Latest Update with Verified Solutions Scientific Notation A compact way to write very large or very small numbers SI Units Specific units of measurements defined by the International System of Units Metric Prefixes Used to express very large or very small values Mass Measured amount of matter in an object Weight Measured gravitational force that the Earth (or other large bodies) exert on an object Temperature The measured amount of heat energy in an...

Chem 101 Exam Questions & Revised Correct Detailed Answers Guaranteed Pass 1) What is the formula of the nitride ion? A) NO3(2-) B) N(3-) C) NO2(-) D) NO3(3-) E) NO3(-) - ANSWER B) N(3-) 2) Radium-226 decays by alpha decay to A) carbon-14 B) polonium-218 C) radon-222 D) barium-131 E) cobalt-60 - ANSWER C) radon-222 Radium(226/88Ra)- Helium(4/2He) = Radon(222/86Ra) 3) Krypton-79 half-life of 35 hours. How many half-lives have passed after 105 hours?...

Chem 101 Exam 3 Questions and Correct Answers 2024

CHEM 101 Exam 1 Questions and Answers All Correct Where are periods on the periodic table? - Answer They go across Where are groups on the periodic table? - Answer They go down What are the metalloids in the periodic table?(6) - Answer B, Si, As, Te, Ge, Sb What are the non-metals in the periodic table? (18) - Answer H, He, C, N, O, F, Ne, P, S, Cl, Ar, Se, Br, Kr, I, Xe, At, Rn What are the noble gases? - Answer Group 18 What are the halogens? - Answer Group 17 What ...

CHEM 101 Final Ivy Tech Exam| 155 Questions With Verified Answers What is the definition of a scientific theory? Correct Answer: a model that explains the underlying reasons for observations and laws What term best describes a brief statement that summarizes many past observations and predicts new ones? Correct Answer: scientific law Which of the following is an example of a scientific law? Correct Answer: In a chemical reaction, matter is neither created nor destroyed. Which of the ...