SCH3U Chemical Reactions Assignment

Name:______Date: ______

TOTAL/32

Please answer the following questions as completely as possible. Please note the assignment of marks towards your grade in brackets.

  1. Properly reference your work from today. If you’re not sure of how to do this, please visit the following website: - the more useful information is near the bottom of the page.

Please avoid google and wikipedia. They are far from scientific and the information there offers no value. References or work from either of these two sites will be deemed incorrect.

Proper referencing format is worth 5 marks.

  1. Base metal smelting produces useful metals such as zinc, lead, copper, and nickel directly from their ores. However, during smelting,harmful compounds can be released into the environment, including cadmium, arsenic, sulfur dioxide, and mercury, all of which can endanger the health and safety of local populations. ( 9 marks total)
  2. What are some of the chemical reactions used in the process of making paper? ( 2 marks)
  3. How might the reactants or products of the pulp and paper production process affect the health of people living near the plant? ( 3 marks)
  4. In what ways might the leaching of chemicals from tailing ponds affect the water quality in a local community? ( 2 marks)
  5. In what ways do toxic chemical fires affect local communities? ( 2 marks)
  1. Scrubber systems are a group of air pollution control devices used by industry to remove or neutralize acid exhaust gases before they reach the atmosphere. Scrubber technologies help to reduce acid precipitation, but there are many different scrubbing techniques with varying levels of effectiveness in controlling acid gas emissions. ( 7 marks total)
  2. How are chemical reactions used to remediate environments affected by chemical spills? (2 marks)
  3. How can tailing ponds be rehabilitated to lessen the effects of hazardous chemicals on plant populations? ( 3 marks)
  4. What types of chemical reactions can change a toxic chemical into one that is less toxic or non-toxic? ( 2 marks)
  1. Using this website: answer the following questions. You need to look into additional sites that are referenced from this main site to find the answers. ( 7 marks total)
  2. In 2007 what was the total revenue generated through the Hydrogen and Fuel Cell industry? (1 mark)
  3. Briefly explain what occurs in a fuel cell. (2 marks)
  4. List two benefits,that are listed, for the benefits of using a fuel cell (2 marks)
  5. What are the two unique properties that hydrogen has which makes it require special consideration when being used. (2 marks)
  6. Research an occupation that appeals to you that makes use of a type of chemical reaction which we have discussed. Describe what the occupation is, what reaction is seen within this occupation and why it is important for the industry that this reaction be used. (4 marks)