Chem 103 exam 1 Study guides, Class notes & Summaries

2023 Portage Learning CHEM 103 Exam 1-6 Final LATEST

2023 Portage Learning CHEM 103 Exam 1-6 Final LATEST

CHEM 103 Lab Exam 8 – Portage Learning. Why was warming data used for estimating the freezing/melting point of the cyclohexane? 3. (3 points) How much of the cyclohexane solvent was placed in the test? 1.) molarity 2.) It is considered reliable. It is a dependable predicator of the freezing/melting point of a substnace. it can determine the temperatures when the change occurs.

What is an acid? correct answerssolution has an excess of H+ ions What is a base? correct answerssolution has an excess of hydroxyl ions (OH-) What is neutralization? correct answers-process where acid and base are mixed until they become neutral and the PH is 7. What are the two products of a neutralization chemical reaction? correct answerswater and salt ( The type of salt depends on acid or base added to neutralize.) What is a weak acid? correct answersan acid that only partially ...

2023 Portage Learning CHEM 103 Exam 1-6 Final LATEST

CHEM 103 Lab Exam 5 – Portage Learning . According to Boyle’s law, as the volume of a gas decreases, the pressure _________. 3. (6 points) A sample of gas occupies a volume of 10.5 L when the pressure is 14.3 psi. Use Boyle’s Law to calculate the volume (L) when the pressure is decreased to 12.8psi. Show the calculation. Answer: 1. A syringe was used, and the volume was read from the graduation markings.

2023 Portage Learning CHEM 103 Exam 1-6 Final LATEST

NH4Cl is being dissolved in water and this process is being studied in a styrofoam coffee cup with NO lid and the heat absorbed is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe the item listed. Answer: 1. NO lid = open system 2. Heat absorbed = Endothermic process Question 2 Not yet graded / 10 pts You may find the following resources helpful: Scientific Calculator Periodic Table Equation Table Links to an ext...

CHEM 103 Exam 1-6 Final LATEST 2023 Portage Learning Correct Questions And Answers

What is chemistry? correct answersChemistry is the study of the physical and compositional changes of matter. Chemistry is called the Central Science. Many health related areas of study are based on Chemistry. Matter correct answersMatter is anything that has mass, occupies space and is made-up of atoms or parts of atoms. Mass correct answers-Mass is a measure of the amount of matter in an object. -Mass is independent of the location of an object. -An object on the earth has the ...