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Properties+Changes
ChemPhysProp
Question | Answer |
---|---|
Physical properties | Characteristics of a substance that do not involve forming a new substance. They are observable with our 5 senses |
Color | Physical properties |
Texture | Physical properties |
Density | Physical properties |
Smell | Physical properties |
Solubility | Physical properties |
Taste | Physical properties |
Melting point | Physical properties |
Conductivity | Physical properties |
Chemical properties | Characteristics that describe how a substance interacts with other substances, or changes into something new(Only observable during a chemical reaction) |
Flammability | Chemical properties |
Combustibility | Chemical properties |
Decomposition | Chemical properties |
Rust | Chemical properties |
Endothermic/Exothermic reactions | Chemical properties |
Physical change | A change that does not produce a new substance. Molecular structures are not changed. |
Tearing a piece of paper in half | Physical Change |
Melting ice | Physical Change |
Chemical change | A change that forms a new substance. If the products are different from the starting materials, then a chemical change has taken place. |
Burning paper | Chemical change |
Digestion of food | Chemical change |
Rust | Chemical change |
Photosynthesis | Chemical change |
Evidence of Chemical Change (5) | -A change in color -Heat or light are produced or absorbed – -Endothermic, Exothermic -Production of gas -A precipitate forms (two liquids mixed together to form a solid) -The change is (generally) difficult to reverse. |