quiz 2b

The 24 power plants in Baltimore metro area collectively emit about 40,300 metric tons of CO2 per day (www.carma.org), thereby increasing the level of greenhouse gases in this region. To counter this, environmentalists plan to plant trees in the area. How many moles of CO2 are emitted by these power plants every day? (1 ton =1000kg, molecular weight of CO2 is 44g) If on average 500 moles of glucose are synthesized by a tree each day, how many moles of CO2 can a single tree convert to glucose in a single day? How many trees need to be planted to reabsorb all the CO2 released into the atmosphere every day by these power plants? If a single tree occupies an average of 8.00 x 10-5 sq miles, what percent of the area of Baltimore city needs to be forested to counter the CO2 emitted from power plants alone?  (total area of Baltimore city is 92.00 sq miles)

Which gas is not associated with the formation of acid rain? NO2 CONO SO3

Methane is oxidized in the atmosphere by photochemical reaction. Write the chemical equation of this reaction?_CH4 + O2  CH2O + H2OCH4 + O  H3C. + H. + O.CH4 + O  CH3C. + HO.CH4 + O  .CH3 + HO.

1: Write all the chemical reactions involved in the formation of acid rain from sulfur dioxide (SO2) and rain (H2O).

Please don't provice handwritten solution ....

What would be the product of the two electron oxidation of ethanol? The four-electron oxidation? Write balanced chemical equations for each, assuming that the process takes place in water and H2 gas is a product in each step.

15. Carbon dioxide makes up approximately 0.04% of Earth's atmosphere. If you collect a 2.0-L sample from the atmosphere at sea level (101.33 kPa) on a warm day at 27 °C, how many CO2 molecules are in your sample? * a. 5 x 10^20 b. 5 x 10^21 O c. 5x 10^22 d. 5 x 10^23

Cyanobacteria are chemosynthetic organisms that reside deep in the ocean near hydrothermal vents. Archeoglobus, one of these types of cyanobacteria, uses the pathway shown in the chemical equation. 4H2 + SO42− + 2H+ → H2S + 4H2O Based on this equation, which explanation best describes how the process of chemosynthesis in bacteria differs from photosynthesis, and why can this process occur in the absence of oxygen?  Chemosynthesis uses H2 as an energy source, while photosynthesis uses the Sun as an energy source. Chemosynthesis uses H+ as an energy source, while photosynthesis uses the Sun as an energy source. Chemosynthesis reduces a sulfate molecule in the absence of oxygen and light, while photosynthesis depends on light to reduce carbon dioxide. Chemosynthesis oxidizes a sulfate molecule in the absence of oxygen and light, while photosynthesis depends on light to reduce carbon dioxide.

Which process remove carbon from the atmosphere? which one is it? 1. Decomposition of carbonic acid and fossil fuel combustion. 2. Photosynthesis and limestone formation. 3. Decomposition of carbonic acid and cellular respiration. 4. Cellular respiration and fossil fuel combustion.

7. Methylhydrazine is commonly used as a liquid rocket fuel. Its combustion is indicated by the following reaction. N₂H3 CH3(1) + O20) → N2(9) + CO2(g) + H₂O (9) a. Balance this equation. b. Calculate AH for this reaction.

Describe the source of carbon that humans and other organisms breathe out, and why we breathe in oxygen.

How increase in atmospheric CO2 impact ocean acidification?

Identify and analyze the way fossil fuel combustion has changed the composition of Earth's atmosphere, and the way this change has affected climate.

Describe two sources of hydrocarbons in the atmosphere. Which one is more readily controlled?

2. Based on what you have learned so far, why is it necessary to stir the water and wait until the end of the video to read the dissolved oxygen? The stirring aerates the water, causing the oxygen to dissolve more easily in the water. The stirring causes oxygen molecules to leave. The stirring causes the H20 to break apart and release oxygen. The stirring causes hydrogen gas to mix with oxygen gas making water.

2Na + BaCl2 --> Ba + 2NACI is what type of reaction?