Chem 111 - Study guides, Class notes & Summaries

Know your significant figure rules Correct Answer-ALL zeroes between non-zero numbers are ALWAYS significant. ALL zeroes which are SIMULTANEOUSLY to the right of the decimal point AND at the end of the number are ALWAYS significant. ALL zeroes which are to the left of a written decimal point and are in a number >= 10 are ALWAYS significant. define calorimetry Correct Answer-the act of measuring heat required or evolved during a chemical process know how to calculate the amount of ener...

CHEM 111 Midterm Exam WCCS 93 Questions with Verified Answers The nucleus of an atom consists of - CORRECT ANSWER protons and neutrons The Heisenberg Principle states that - CORRECT ANSWER it is impossible to determine accurately both the position and momentum of an electron simultaneously Rutherford carried out experiments in which a beam of alpha particles was directed at a thin piece of metal foil. From these experiments he concluded that - CORRECT ANSWER the positively charged parts...

Chem 111 General Chemistry 1 Practice Test #3 (Chapter 6 & 7) 50 Questions with Verified Answers 1. Which one of the following statements about balanced equations is TRUE? A reaction is balanced by A) multiplying by suitable coefficients B) changing the formula of the molecule C) changing the charge of an ion D) rearranging atoms in a molecule - CORRECT ANSWER A) multiplying by suitable coefficients 2. What is the stoichiometric coefficient for oxygen when the following equati...

CHEM 111 Compilation of Quizzes for Final Exam 124 Questions with Verified Answer Fall 2024 What is the responsibility of the Lab Supervisor? - CORRECT ANSWER -Writes quizzes -Maintains Canvas site -Enforces safety within the lab -trains teaching assistants What is the responsibility of the teaching assistant? - CORRECT ANSWER -Holds office hours in the Learning Center -Grades lab reports and posts grades on Canvas -Enforces safety within the lab -Monitors students in the lab What...

Chem 111 Lab Questions with Complete Solutions.

Chem 111 Study Guide Questions With Complete Solutions.

CHEM 111 Quiz 1 Exam 73 Questions with Verified Answers Two characteristics of Matter - CORRECT ANSWER Mass and Volume Scales of Matter - CORRECT ANSWER 1. Macroscopic 2. Microscopic 3. Particulate Physical Property - CORRECT ANSWER When an atom or molecule doesn't change -color, taste, melting and boiling point, odor, density Chemical Property - CORRECT ANSWER When the atom or molecules react and the composition of matter changes -flammability, acidity, oxidation, corrosiven...

physical vs. chemical change - Answer-physical- does not change the substance. change in matter but nor chemical composition chemical- substance is changed. energy is absorbed or released. one or more substances being used solid - Answer-often rigid with definite shape gas - Answer-fills container and is easily comressed liquid - Answer-flows and takes shape of container, has a op surface 2 types of mixtures - Answer-heterogeneous- not uniform through out mixture homogeneous- uniform th...

©FYNDLAY EXAM SOLUTIONS 2024/2025 ALL RIGHTS RESERVED. 1 | P a g e CHEM 111 Exam Study Guide. Periodic law - answerthe chemical properties of elements are periodic function of atomic number Z group - answervertical arrangement of the periodic table (there are 10 groups) perido - answerhorizontal arrangement of the periodic table (there are three periods) lanthanide elements - answera period of elements with atomic numbers 57-71 called rare earth metals or lanthanide elements actinide ...

CHEM 111 (test 1) Study Guide Questions With Complete Solutions