logging in or signing up Chemical vs Physical Change mswage Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 1665 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (1) Added: October 17, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: srinukl (16 month(s) ago) good one Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Physical versus Chemical Properties : Physical versus Chemical Properties Unit II - Part 1 The study of matter Reviewing MATTER : Matter: anything that has mass and takes up space Mass – the amount of matter in something Volume – the amount of space something occupies Which of the following is matter? A car? A box? You? Reviewing MATTER What is a property? : What is a property? Property: a characteristic of a substance that can be observed Physical Property : Physical Property Physical property: a property that can be observed without changing the identity of the substance. Examples: luster malleability: the ability to be hammered into a thin sheet ductility: the ability to be stretched into a wire melting point boiling point density solubility specific heat Special Physical Properties : Special Physical Properties Melting point: the temperature at which a substance changes from a solid to a liquid at a given pressure water = 0oC Boiling point: the temperature at which a substance changes from a liquid to a gas at a given pressure water = 100oC Chemical Properties : Chemical Properties Chemical property: a property that can only be observed by changing the identity of the substance Examples: flammability ability to rust reactivity with vinegar Density : Density Density is the amount of mass per unit of volume. Density can be used to identify a substance. The density of water is 1.0g/mL Density Calculations : Density Calculations Calculations: D = m/V = g/mL = g/cm3 Ex: A cube has a mass of 2.8 g and occupies a volume of 3.67 ml. Would this object float or sink in water? Mass = 2.8 g Volume = 3.67 mL D = 2.8g/3.67 mL= 0.76 g/mL This object would float in water because its density is less than water (1.0 g/mL). More Density Calculations : More Density Calculations Ex: A liquid has a mass of 25.6 g and a volume of 31.6 mL. Use the table below to identify the substance. M=25.6 g V=31.6 mL D = 25.6 g/31.6 mL D= 0.81 g/mL The substance is ethanol. You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Chemical vs Physical Change mswage Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 1665 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (1) Added: October 17, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: srinukl (16 month(s) ago) good one Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Physical versus Chemical Properties : Physical versus Chemical Properties Unit II - Part 1 The study of matter Reviewing MATTER : Matter: anything that has mass and takes up space Mass – the amount of matter in something Volume – the amount of space something occupies Which of the following is matter? A car? A box? You? Reviewing MATTER What is a property? : What is a property? Property: a characteristic of a substance that can be observed Physical Property : Physical Property Physical property: a property that can be observed without changing the identity of the substance. Examples: luster malleability: the ability to be hammered into a thin sheet ductility: the ability to be stretched into a wire melting point boiling point density solubility specific heat Special Physical Properties : Special Physical Properties Melting point: the temperature at which a substance changes from a solid to a liquid at a given pressure water = 0oC Boiling point: the temperature at which a substance changes from a liquid to a gas at a given pressure water = 100oC Chemical Properties : Chemical Properties Chemical property: a property that can only be observed by changing the identity of the substance Examples: flammability ability to rust reactivity with vinegar Density : Density Density is the amount of mass per unit of volume. Density can be used to identify a substance. The density of water is 1.0g/mL Density Calculations : Density Calculations Calculations: D = m/V = g/mL = g/cm3 Ex: A cube has a mass of 2.8 g and occupies a volume of 3.67 ml. Would this object float or sink in water? Mass = 2.8 g Volume = 3.67 mL D = 2.8g/3.67 mL= 0.76 g/mL This object would float in water because its density is less than water (1.0 g/mL). More Density Calculations : More Density Calculations Ex: A liquid has a mass of 25.6 g and a volume of 31.6 mL. Use the table below to identify the substance. M=25.6 g V=31.6 mL D = 25.6 g/31.6 mL D= 0.81 g/mL The substance is ethanol.