Skip links
Drag

作业代写|Chemistry 3.3 AS92389

这是一篇来自新西兰的化学作业代写

 

Resource Booklet

Suggested Topics:

  • Ocean acidification
  • The greenhouse effect and nitrous oxide
  • Rechargeable batteries
  • The ozone layer and CFCs
  • Degradable plastics
  • BiopolymersOcean Acidification

Chemistry 3.3: Demonstrate understanding of chemical processes in the world around us

Credits: 3

Achievement  Achievement with Merit  Achievement with Excellence

Demonstrate understanding of chemical processes in the world around us.

Demonstrate in-depth understanding of chemical processes in the world around

Demonstrate comprehensive understanding of chemical processes in the world around us.

Student instructions

Introduction

You are an advisor for the Ministry of Primary Industries Fisheries office. You have been asked to prepare a report about the possible impact of rising CO2 levels on New Zealand’s seafood industries. Write a report that demonstrates your understanding of the chemical processes involved when CO2 dissolves in seawater and the environmental issues associated with these processes.

You will be assessed on the comprehensiveness of your report and on your evaluation of the impact of, and issues that have arisen from, chemical processes.

You should aim to spend around 5 hours individually to complete this task.

Task

Write a report that demonstrates an understanding of the processes involved in ocean acidification and the environmental issues involved with the chemical processes.

See Resource A for links to information that you will need to process and interpret.

You will be assessed on how well your report demonstrates your understanding of the chemical processes involved in ocean acidification and the consequential environmental effects.

In your report:

  • describe the chemical processes involved, including appropriate chemical equations
  • explain the action of the carbonate/hydrogen carbonate buffer
  • identify and explain how the chemical processes are linked to the survival of marine organisms
  • compare and contrast the conditions that exist at the surface of the ocean with those at depth,describe the circumstances that would cause mixing of surface and deep waters, and the environmental consequences of such mixing.
  • briefly summarise the effect on New Zealand’s seafood industry of rising CO2 levels and suggest what the Government could do in response.Resource A

1 The carbon cycle

https://scied.ucar.edu/carbon-cycle

2 Ocean acidification

http://archive.stats.govt.nz/browse_for_stats/environment/environmental-reporting-series/enviro

nmental-indicators/Home/Marine/ocean-acidification.aspx

3 More details about ocean acidification

http://www.realclimate.org/index.php/archives/2005/07/the-acid-ocean-the-other-problem-

with-cosub2sub-emission/

4 What happens when CO2levels rise

https://www.nationalgeographic.com/magazine/2011/04/ocean-acidification/

5 Biological impact

http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F

6 The New Zealand perspective

https://www.odt.co.nz/news/national/ocean-acidification-threatens-nz-paua-mussels

Controlling emissions

Chemistry 3.3: Demonstrate understanding of chemical processes in the world around us

Credits: 3

Achievement Achievement with Merit Achievement with Excellence

Demonstrate understanding of chemical processes in the world around us.

Demonstrate in-depth understanding of chemical processes in the world around

Demonstrate comprehensive understanding of chemical processes in the world around us.

Student instructions

Introduction

You are a soil research scientist working on the development of products that reduce the amount of nitrous oxide (N2O) released from pastures. You are applying to an environmental charitable trust for funding to continue your research. Write a report that demonstrates understanding of the processes involved in the greenhouse effect, nitrous oxide emissions and their environmental consequences.

You will be assessed on the comprehensiveness of your report and on your evaluation of the impact of, and issues that have arisen from, chemical processes.

You should aim to spend around 5 hours individually to complete this task.

Task

Write a report that demonstrates an understanding of the processes involved in the greenhouse effect and nitrous oxide emissions and their environmental consequences.

See Resource A for links to information that you will need to process and interpret.

You will be assessed on how well your report demonstrates your understanding of the chemical processes involved in the greenhouse effect and nitrous oxide emissions and the consequential environmental effects.

In your report:

  • describe the chemical processes involved in the greenhouse effect and explain how these contribute to global warming
  • elaborate by discussing the properties of greenhouse gases and their different global warming potentials
  • identify and explain the processes that release nitrous oxide into the atmosphere
  • compare and contrast the environmental factors in New Zealand and other countries with their

greenhouse gas profiles

  • summarise the benefits to New Zealand of reducing nitrous oxide emissions.Resource A

1 An introduction to the greenhouse effect, from a New Zealand perspective.

http://www.teara.govt.nz/en/atmosphere/2

2 General information about greenhouse gases and the greenhouse effect.

https://www.niwa.co.nz/our-science/climate/information-and-resources/clivar/greenhouse

3 Another site that more specifically considers how greenhouse gases absorb IR radiation.

http://www.ces.fau.edu/nasa/module-2/how-greenhouse-effect-works.php

4 The global warming potential of different gases

https://en.wikipedia.org/wiki/Global_warming_potential

5 The chemistry of the nitrogen cycle

http://www.visionlearning.com/library/module_viewer.php?mid=98

6 Nitrous oxide in New Zealand

https://www.niwa.co.nz/atmosphere/our-data/trace-gas-plots/nitrous-oxide

7 The scientists investigating nitrous oxide emissions

https://www.sciencelearn.org.nz/resources/922-inhibiting-nitrous-oxide-emissions

8 Material for farmers about a nitrous oxide inhibitor

https://www.newsroom.co.nz/2018/09/23/244925/nitrous-oxide-no-laughing-matter#

https://www.niwa.co.nz/news/niwa-scientists-put-better-nitrogen-management-on-the-farm-to-the-test