Molecular formula - Study guides, Class notes & Summaries

What is the term used for findings that are summarized based on a pattern or trend? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - a. Law Which of the following is a tentative explanation for a set of observations? Select one: a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - b. Hypothesis If a liquid contains 60% sugar and 40% water throughout its composition then what is it called? Select one: a. Solute b. Compound c. Homogeneous mixture d. Heterog...

Straighterline Chemistry Final Exam (ACTUAL) What is the term used for findings that are summarized based on a pattern or trend? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - Answer a. Law Which of the following is a tentative explanation for a set of observations? Select one: a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - Answer b. Hypothesis If a liquid contains 60% sugar and 40% water throughout its composition then what is it calle...

Which of the following formulas represents butane? CH3CH3 CH3CH2CH2CH3 CH3CH2CH3 CH3CH2CH2CH2CH3 correct answer: CH3CH2CH2CH3 What does a structural formula look like? correct answer: CH3CH2CH3 What is the molecular formula of a straight chain alkane with 12 carbon atoms? correct answer: C12H26 Which of the following alkanes would you expect to be a solid? C8H18 C20H42 CH4 C3H8 correct answer: C20H42 Carbon forms strong covalent bonds with each of the following elements ...

Introduction to Chemistry, 5e (Bauer) Chapter 3 Chemical Compounds 1) The figure shows all but which of the following? 1. A) two elements and a compound 2. B) a chemical reaction 3. C) one mixture and one pure substance 4. D) three compounds Answer: D Difficulty: 1 Easy Topic: Study of Chemistry Bloom’s: 2. Understand Gradable: automatic Subtopic: Classification and States of Matter; Properties of Matter Accessibility: Keyboard Navigation 2) Which of the substances shown in the figure is an io...

Chem 219 Unit 5 Exam with Correct Solutions Generic formula for alcohols - Answer -R-OH phenol - Answer -hydroxy-substituted aromatic molecules (any compound with an -OH attached to a benzene ring) IUPAC system rules for naming organic alcohols - Answer -- organic alcohols are named by replacing the suffix of the parent chain of the molecule with the suffix -ol - The parent chain is numbered so as to give the hydroxyl group the lowest possible number. (examples: 1-propanol, and cyclohexan...

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Version: 1.0 Final *JUN* IB/M/Jun23/E6 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 Section B TOTAL Tuesday 23 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instruction...

Chapter 01 - Structure and Bonding 1. Give the ground-state electron configuration for carbon (atomic number 6). 1s22s22px12py1 or 1s22s22p2 2. Give the ground-state electron configuration for fluorine (atomic number 9). ANSWER: POINTS: 1 1s22s22px2 2py2 2pz1 or 1s22s22p5 3. Give the ground-state electron configuration for magnesium (atomic number 12). 1s22s22p63s2 4. How many electrons does silicon have in its valence shell? ANSWER: four POINTS: 1 Exhibit 1-1 Write valid Lewis (elec...

Package Title: Hein Test Bank Course Title: Hein 14e Chapter Number: 3 Question type: Multiple Choice 1) All matter is composed of elements. Approximately how many elements are there? a) 4 b) 10 c) 68 d) 100 Answer: D Difficulty: easy Learning Objective 1: Define an element and write the chemical symbol for an element when given its name. Section Reference 1: Section 3.1 2) The smallest particle of an element that can exist is called a(n) ___. a) atom b) ferrul...

Straighterline Chemistry Final Exam Questions with Complete Solutions Latest The 80Br- ion has Select one: a. 45 protons, 35 neutrons, 45 electrons. b. 35 protons, 45 neutrons, 34 electrons. c. 35 protons, 45 neutrons, 36 electrons. d. 45 protons, 35 neutrons, 46 electrons. e. 35 protons, 45 neutrons, 46 electrons. - Answer-e. 35 protons, 45 neutrons, 46 electrons. The formula for sodium sulfide is Select one: a. NaS b. K2S c. NaS2 d. Na2S e. SeS - Answer-d. Na2S Which...

empirical and molecular formula notes-1