Chemistry

C9: Nuclear Chemistry Read the Topics: – 9.1 – How was Radioactivity Discovered? – 9.2 – What is Radioactivity? – Watch the Video: https://youtu.be/dY10s71rv80 – 9.3 – What happens when a Nucleus emits Radioactivity? – see Figures 9-1, 9-2, 9-3 – Alpha, Beta and Gama Emission – Watch the Video: https://youtu.be/c9WfZJYUWv0 – Example 9.2 – 9.4 – Nuclear Half-Life – see Table 9-2 – Watch the Video: https://youtu.be/opjJ-3Tkfyg – Example 9.5 this research paper has to be about nuclear chemistry, above i have placed some topics from the chapter

Do you know the reason ice floats in your drink? It is because the density of ice is lower than that of water. Chemistry is happening all around you at all times (both physical and chemical changes). What have you observed within the last week that involves chemistry? What is that process/reaction? Your journal entry must be at least 200 words in length. No references or citations are necessary.

The air that we breathe is the most common gas in the world. It is something that is being harmed to an extreme extent. What is the air quality in your local area? Be sure to include your thoughts on why you consider your air quality to be above or below the worldwide average air quality. In what ways do you think your local air quality could be maintained (if good) or improved (if poor)? Some websites that can help you answer these questions include: World’s Air Pollution: Real-Time Air Quality Index U.S. Environmental Protection Agency: Outdoor Air Quality Data: Interactive Map of Air Quality Monitors Your journal entry must be at least 200 words in length. No references or citations are necessary.

Part 1: Create a “Map” or a Diagram of the Scientific Method. Include what you viewed. Identify each step of the Scientific Method. Then describe how the Scientific Method can be applied to this episode through your “Map” or Diagram.This assignment must meet the following criteria:Minimum word count: 300 wordsAPA formaWork Cited pagePart 2: Provide Feedback to me if this assisted in giving you a better understanding of the Scientific Method and what could be done differently (3 paragraph maximum).

Instructions

Do you know the reason ice floats in your drink? It is because the density of ice is lower than that of water. Chemistry is happening all around you at all times (both physical and chemical changes). What have you observed within the last week that involves chemistry? What is that process/reaction?

Your journal entry must be at least 200 words in length. No references or citations are necessary.

Instructions

The air that we breathe is the most common gas in the world. It is something that is being harmed to an extreme extent. What is the air quality in your local area? Be sure to include your thoughts on why you consider your air quality to be above or below the worldwide average air quality. In what ways do you think your local air quality could be maintained (if good) or improved (if poor)?

Some websites that can help you answer these questions include:

World’s Air Pollution: Real-Time Air Quality Index

U.S. Environmental Protection Agency: Outdoor Air Quality Data: Interactive Map of Air Quality Monitors

Your journal entry must be at least 200 words in length. No references or citations are necessary.

 Identify a substance that can exist in all phases here on Earth. Describe different phase changes and what happens to this substance at the atomic level during these phase changes. 

If you were to reduce the volume of a gas in a container to 1/5 of its original volume by what factor does the pressure in the container increase (temperature is constant)?

Dr. Walter White (Walt), a high school chemistry teacher and brilliant chemist, is diagnosed with lung cancer and urgently needs money for treatment. With the help of his former student, Jesse Pinkman, he starts producing highly pure crystal meth and gradually establishes his drug business. In the course of a drug deal gone badly, a rival gang leader, Tuco Salamanca, beats up Jesse and confiscates Walt’s meth. Walt decides to take revenge by blowing up Tuco’s headquarters and show him who the real boss is. He prepares a mixture of mercury (II) fulminate and silver fulminate in the mass ratio of 95.0 wt%:5.0 wt%. Crystals of this solid mixture has a similar appearance as crystal meth but detonates violently under the slightest shock. The reaction proceeds as below. Assuming that it takes 1 MJ (megajoule) of energy to blow up Tuco’s room, how much weight of explosive does Walt need to prepare? (10 marks) 2Hg(CNO)2 ~2CO2 + N2 + Hg + Hg(CN)2 4AgCNO ~2CO2 + N2 + 2Ag + 2AgCN Heat of reaction: -270 kJ/mol Heat of reaction: -500 kJ/mol 

You make $12.75 per hour and get time and a half for all hours over 40 in a week. They withhold  32% from your check for taxes and other things. If you work 53 hours in one week what will be your takehome pay?