Day 1 - Safety and KMT

On the first day of class we covered Chapter 1, pgs 1-21. Our focuses were on safety and Kinetic Molecular Theory (KMT). Students were assigned:















Pg 11 - Reading Check - Saftey #1-5















Pg 13 - Reading Check - WHMIS #1-3















Pg 21 - Reading Check - KMT #1-7















Answers:























1. Before starting a science activity, know the







safety rules that apply to your laboratory as







well as any safety guidelines that apply to the







specific lab activity you are about to begin.















2. Report any nick or chip in glassware to your







teacher and then discard it in the sharps







bucket.















3. Never taste a chemical in the science lab, even







if it is a food item.















4. Take a container with an obscured label to







your teacher.















5. Hold the chemical you are about to smell at







arm’s length and waft the fumes toward you.







Gradually bring the container closer to your







nose until you can smell the fumes safely.























Reading Check Answers, p. 13







1. Workplace Hazardous Materials Information







System















2. (a) Compressed gas







(b) Flammable and combustible material







(c) Dangerously reactive material















3. (a) Explosive







(b) Corrosive







(c) Poisonous























Reading Check Answers, p. 21















1. A liquid takes on the shape of the container it







is in but holds its own volume. A solid holds







its own shape and volume.















2. A liquid takes on the shape of the container it







is in but holds its own volume. A gas takes on







the shape but expands to fill the container.















3. Solids have very little space between the particles,







while gas particles have very large spaces







between them.















4. (a) Adding energy increases the space between







particles.







(b) Losing energy decreases space between







particles.















5. (a) Adding energy causes particles to vibrate







more vigorously.







(b) Losing energy causes particles to vibrate







less vigorously.















6. In condensation, a gas turns into a liquid.















7. Sublimation and deposition are opposite







processes in the conversion of gases and solids.







A gas changing state to a solid is deposition; a







solid changing state to a gas is sublimation.