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Precipitation

ch. 4

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Chapter 4 Practice Test 1. A 20.0-g sample of HF is dissolved in water to give 2.0 ? 102 mL of solution. The concentration of the solution is: a) 1.0 M b) 3.0 M c) 0.10 M d) 5.0 M e) 10.0 M Ans: d) 5.0 M Page: 4.3 2. Which of the following aqueous solutions contains the greatest number of ions? a) 400.0 mL of 0.10 M NaCl b) 300.0 mL of 0.10 M CaCl2 c) 200.0 mL of 0.10 M FeCl3 d) 200.0 mL of 0.10 M KBr e) 800.0 mL of 0.10 M sucrose ANS: b) 300.0 mL of 0.10 M CaCl2 PAGE: 4.3 3. What mass of calcium chloride, CaCl2, is needed to prepare 2.850 L of a 1.56 M solution? a) 25.9 g b) 60.8 g c) 111 g d) 203 g e) 493 g ANS: e) 493 g PAGE: 4.3 4. What volume of 18.0 M sulfuric acid must be used to prepare 15.5 L of 0.195 M H2SO4? a) 168 mL

acid rain

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Name: ________tyler antebi___________________________ Pg.___1 Mrs. Strype - 8 Acid Rain Internet Activity Sulfur dioxide and nitrogen oxides from the burning of fossil fuels react with water and oxygen to form acids. Rainwater is naturally slightly acidic, but this additional acid makes it even more so. Acid rain harms wildlife and upsets the balance of an ecosystem. In this activity, you'll learn what acid rain is and how you can help reduce it. Go to the website What is Acid Rain? What's the definition of acid rain? Acid rain is referring to a mixture of wet and dry materials from the atmosphere containing high amounts acid. Compare wet and dry deposition. Wet Acidic rain, Snow, Fog Acids fall in types of wet or moist weather. Dry Dust, Smoke

acid rain

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Name: ________tyler antebi___________________________ Pg.___1 Mrs. Strype - 8 Acid Rain Internet Activity Sulfur dioxide and nitrogen oxides from the burning of fossil fuels react with water and oxygen to form acids. Rainwater is naturally slightly acidic, but this additional acid makes it even more so. Acid rain harms wildlife and upsets the balance of an ecosystem. In this activity, you'll learn what acid rain is and how you can help reduce it. Go to the website What is Acid Rain? What's the definition of acid rain? Acid rain is referring to a mixture of wet and dry materials from the atmosphere containing high amounts acid. Compare wet and dry deposition. Wet Acidic rain, Snow, Fog Acids fall in types of wet or moist weather. Dry Dust, Smoke

Climate Change

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Climate Change IPCC- established in 1988, intergovernmental panel on climate change. 2500 climate scientists, producing reports every six or so years projecting where we are in terms of the environment. Last one was in 2007 Each time a report is produced, scientists are more convinced that climate change is happening and can be attributed to human activity. -Difference between climate variability and climate change, you can get a cold year in the middle of a warming period, but the broader scale is climate change. -2-11.5? higher temperature by 2100. Can?t get it to an exact number because unless you are 100% certain, you really can?t be sure that anything will happen. Depends on CO2 emissions, parts of the globe,

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