{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

11HWChp5 - Module1 The Chemical Earth Yr 11 Homework Due...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Module1 The Chemical Earth Yr 11 Homework Due:_________________________ Answer the following questions from Chemistry Contexts 1 pp57 - 80 Chapter 5. Chemical Change 1. Explain in your own words the difference between a physical and chemical change. Give an example of each. 2. Classify the following as physical or chemical changes: a. Chopping wood b. Burning wood c. Melting candle wax d. Burning candle wax e. Rusting iron f. Dissolving sugar in tea g. Forming an iron nail from an iron block h. Boiling an egg 3. (i)The process of forming ‘dew’ can illustrate the condensation of water vapour from a gas to liquid state. (ii)When hydrogen gas and oxygen gas react explosively they form liquid water. a. Identify the process as a physical or chemical change b. Explain at a molecular level and using the particle model the changes occurring c. Predict in a relative amount whether energy is released or absorbed 4. Explain why you must always balance chemical equations so that the
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern