1) Types of Matter

Study Guide 1-2

1) Types of Matter Use the flow chart that you received in class to help determine whether the substance is an element, compound, homogeneous or heterogeneous mixture. The flow chart will also help you determine whether it is chemically or physically combined.

A. Decide whether the substance is made up of 1 ingredient or 2 B. If the substance is made up of 1 ingredient (e.g. salt or iron) it will either be an element or a compound. C. If the substance is found on the periodic table of elements it is an element (iron). If the substance is made up of one or more elements (or not on the periodic table) it is a compound (salt) D. If substance is made up of more than 2 ingredients it is a mixture. Now decide whether it is homogeneous or heterogeneous. E. If the substance looks the same throughout it is homogeneous. F. If the substance looks different throughout it is heterogeneous. If the substance is a mixture it is physically combined. If it is a compound it is chemically combined.

Determine whether the following are elements, compound, or mixtures, chemically/physically combined, and draw a representative picture: a) grass e) wooden chair i) colored water

b) glass f) paper j) strawberry icing

c) toothpaste g) chlorine gas k) Pb4

d) toothbrush h) lemonade l) CO2 + H2O

2) Physical and Chemical Properties and Changes Determine whether each is a property or change and either physical or chemical a) Paint drying b) sand paper is coarse c) hydrogen is explosive d) opening a soda e) skin tanning f) leaves growing g) mass is 56 g h) lemons taste acidic i) dissolving food coloring 3) Intensive vs Extensive What is the difference between intensive physical properties and extensive physical properties? Give an example of each.

4) Lab safety Please know all 55 lab guidelines. Also, please know the location of all the safety equipment in our lab & the uses for each piece.

) Where are the following: safety shower, eye wash, fire extinguisher, fire blanket, first-aid kit & MSDS file? ) Why our baggy sleeves a problem in lab? ) How do you smell a chemical in lab? ) How do you mix water & acid? ) How does hot glass look compared to cool glass? ) What is wrong with chipped or cracked glassware? ) What do you do with broken glassware? ) What do you do with unused chemicals? ) Where do you point a test tube when its contents are being heated? N) What is an MSDS? Who is required to have one? Why?

5) Please be able to identify all equipment & know the use for the pieces of equipment we have specifically used during a lab.

6) Please list & describe the steps in the scientific method. Give a real life example that illustrates the scientific method.

7) What is an example of an observation? An inference? What is the difference between the two?

8) What is the difference between mass and volume?

9) Look over the Candle lab, Bunsen Burner lab, Separating a Mixture, and most recently the Physical/Chemical Properties and Changes lab both the data received and questions.