Chapter 2 Properties of Matter Warm-Up #1

Transcription

1 Warm-Up #1 Yes you need to write the warm-up question 1.) Name the four states of matter 2.) Describe the difference between mass and weight 3.) What is the Metric unit that describes a force like weight? Answers 1.) solid, liquid, gas, plasma 2.) Mass is the amount of matter in an object. Weight is a measure of how mass is affected by gravity. 3.) Newton

2 Warm-Up #2 Objective for today To describe the many physical and chemical properties of matter Warm-up Questions 1.) List five properties of matter. 2.) Name something that is NOT made of matter.

3 Warm-Up #3 Objective for today Notes on Physical and Chemical Properties of Matter 1.) What is thermal conductivity? Warm-Up Questions 2.) Is color a physical or chemical property? 3.) What is the physical property that measures a substances ability to hold heat? Answers 1.) The ability of a substance to transfer heat 2.) Color is a physical property of matter 3.) Specific heat

4 Warm-Up #3 Objective for today Notes on Physical and Chemical Properties of Matter 1.) What is thermal conductivity? Warm-Up Questions 2.) Is color a physical or chemical property? 3.) What is the physical property that measures a substances ability to hold heat? Answers 1.) The ability of a substance to transfer heat 2.) Color is a physical property of matter 3.) Specific heat

5 Warm-up #4 1.) Define: Physical Property and Chemical Property 2.) Give one example of each

6 A property of matter is used to describe matter and how it interacts with other matter

7 A characteristic property is a property that does not change whether the sample is large or small

8 A physical property can be observed or measured without changing the identity of the substance

9 A chemical property determines the ability of a substance to change into a new substance with different properties

10 Physical Properties State of Matter PHASE Is the substance a solid, liquid, gas or plasma

11 Physical Properties Color How are the colors of light reflected or absorbed by a substance

12 Physical Properties Melting Point and Freezing Point At the melting point a solid turns to a liquid. At the freezing point a liquid turns to a solid.

13 Physical Properties Boiling Point and Condensation Point At the boiling point a liquid turns to a gas. At the condensation point a gas turns into a liquid.

14 Physical Properties Density The amount of mass per unit volume. The unit of density is g/1cm 3

15 Physical Properties Inertia The resistance to a change in motion due to an objects mass.

16 Physical Properties Texture How a substance feels. Is it smooth, coarse, grainy or slippery

17 Physical Properties Luster Is the substance shiny or dull in appearance

18 Physical Properties Magnetic The ability of a substance to attract a magnet

19 Physical Properties Electrical Conductivity The ability of a substance to carry an electric current.

20 Physical Properties Specific Heat The ability of a substance to hold a certain amount of heat.

21 Physical Properties Hardness The ability of a substance to scratch another substance. Talc is the softest substance and diamonds are the hardest substances.

22 Physical Properties Odor Does the substance produce a smell

23 Physical Properties Taste Does the substance taste salty, sweet, bitter or sour

24 Physical Properties Thermal Conductivity The ability of a substance to transfer heat.

25 Physical Properties Thermal Expansion A measure of how much larger a substance becomes (expands) when heated.

26 Physical Properties Malleability The ability to hammer the substance into a flat sheet

27 Physical Properties Ductility The ability to be stretched out into a long wire

28 Physical Properties Solubility The ability of a substance to dissolve in another substance

29 Physical Properties ph How ACIDIC or BASIC a substance is. Measured on a scale of 0-14

30 Chemical Properties

31 Chemical Properties Reactivity The ability of a substance to react with an acid, a base or other compounds

32 Chemical Properties Remains Inert When a substance does not interact with another substance

33 Chemical Properties Flammability The ability of a substance to react with oxygen

34 Chemical Properties Decompose When a substance breaks down when heated without oxygen present

35 Chemical Properties Precipitate When a substance forms a solid in a chemical reaction

36 Chemical Properties Dehydrate When a substance loses water in a chemical reaction

37 Chemical Properties Oxidize When a substance loses electrons

38 Chemical Properties Reduce When a substance gains electrons

39 Chemical Properties Acid or Base reactivity When a substance changes because of an acid or a base

40 Physical Changes A change that affects one or more physical properties of a substance

41 Physical Changes Examples Grinding a substance into a powder, staining with a dye, dissolving, melting, boiling, etc.

42 Chemical Changes When one or more substances are changed into new substances

43 Chemical Changes Examples Burning, release of a gas, sometimes a color change, forming a solid, creating a new compound