Chemical and Physical Properties
Chemical and physical properties are fundamental concepts in the study of matter. They describe the characteristics and behavior of substances, distinguishing one from another. Chemical properties refer to the ability of a substance to undergo chemical reactions and form new substances, such as its reactivity with other elements or compounds. On the other hand, physical properties encompass traits like color, density, melting point, and conductivity, which can be observed or measured without altering the substance's chemical composition. Understanding these properties is crucial in fields like chemistry, material science, and engineering, guiding research, and practical applications.
Questions
- A chemist dissolved crystals of an unknown substance into water at room temperature. He found that 33 g of the substance can be dissolved into 100 mL of water. What property of the unknown substance was the chemist most likely investigating?
- What is the difference between water and hydrogen peroxide?
- What are two physical properties that characterized matter?
- How would you distinguish between a physical property and a chemical property, giving an example of each?
- Water and hydrogen and peroxide (#H_2O_2#) both consists of hydrogen oxygen atoms. Why do they have different chemical and physical properties.?
- Is crystal growth a chemical or physical process?
- How does adding salt change the physical properties of water?
- What physical property is identical for the isomers of #C_5H_12# ?
- How are new chemical properties, and principles discovered?
- When a match stick turns to ash while burning is it a chemical or physical change?
- A person gets cooler by perspiring. Is this a chemical or physical change?
- What is a substance formed by the chemical combination of two or more elements in definite proportions?
- Why can the samples of platinum and copper have the same extensive properties but not the same intensive properties?
- Is the molar volume a physical or chemical property?
- What is the reactivity trend of halides?
- How would you contrast intensive and extensive physical properties?
- Which of the following elements would be best suited for electrical wiring: gold, sulfur, or neon?
- Can the flammability of ethyl alcohol be reduced?
- What property is measured by a ruler?
- What are examples of physical property?