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

Chemistry 101 Midterm Ivy Tech (1-4) Exam With Correct Answers Which of the following would be considered a theory? a. glass is fragile b. hot air rises c. gasoline has a very strong odor. d. helium balloons float because helium is less dense than air. e. none of the above Correct Answer: D Which statement accurately describes the purpose of experiments? a. experiments are designed to produce the results predicted by a theory. b. experiments can be replaced by a simple, logical reas...

CHEM 101 - Exam #1 Study Guide (Ch. 1-3) Questions and answers latest update

CHEM 101 ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) ALREADY GRADED A+ NEWEST VERSION If a compound's chemical formula was experimentally determined to be 18, the chemical formula could be: CH4 NH3 H2O PCl5 - Answer H2O Use the periodic table to get the atomic masses of each element. Then you can calculate the formula mass as such: H=1.008×2=2.016 O=15.999×1=15.999 Adding these together we get 18.015, which is approximately 18. The sum...

CHEM 101 Exam Questions With 100% Verified Answers Hypothesis - ANSWER- A tentative explanation of observations that acts as a guide for gathering and checking information. Chemistry is a science based on: - ANSWER- observation and experimentation What is true about atoms in a molecule? - ANSWER- They move together with other atoms in the molecule. They move as a unit, like keys on a single key ring. In a molecule of water, H2O, which statement is most correct? 1. A molecule of wate...

CHEM 101-Straighterline Exam 1-Answered

CHEM 101-Straighterline Exam 1 Verified Questions And Answers 2023/2024 CHEM 101-Straighterline Exam 1 Verified Questions And Answers 2023/2024

Which of the following elements has the smallest first ionization energy - Rb How many total electrons are present in chloride ion - 18 Which one of these elements is a transition element - Nickel Which of these choices is the electron configuration of the iron(III) ion - [Ar]3d^5 An element with the electron configuration [noble gas]ns2(n - 1)d10np3 has ____________ valence electrons - 5 Which of the following most accurately describes the trend in metallic character - In...

CHEM 101-STRAIGHTERLINE EXAM 1

CHEM 101-Straighterline Exam 1 with complete solution