Acid rain is the common name for acidic deposits that fall to Earth from the atmosphere. The term was coined in 1872 by English chemist Robert Angus Smith to describe the acidic precipitation in Manchester, England. Today scientists study both wet and dry acidic deposits. Although there are natural sources of acid in the atmosphere, acid rain is primarily caused by emissions of sulfur dioxide (SO2) and nitrous oxide (N2O) from electric utilities burning fossil fuels, especially coal. These chemicals are converted to sulfuric acid and nitric acid in the atmosphere and can be carried by the winds for many miles from where the original emissions took place.
Oil of vitriol, also known as sulfuric acid .Sulfuric acid? What is it? Sulfuric acid is a highly corrosive strong mineral acid with the molecular formula of H2 SO4. It's a colorless or slightly yellow liquid which is soluble in water at all concentrations. Sometimes, it could be dark brown by being dyed during its industrial production process in order to alert people to its hazards.
Reactant B- Sodium Chromate(aq)~Na2CrO4 Sodium Chromate is an odorless yellow crystalline powder. It melts at 1457.6oF, has a molar mass of 162g/mol, and a density of 2.7g/cm3. It is soluble in water and slightly soluble in ethanol. Sodium Chromate shouldn’t be inhaled, ingested, or touched (absorbed through skin) as it is toxic and can be fatal. It is not combustible, but it speeds up the combustion of other substances because it is an oxidizing agent.
a. Oil hypothesis = Oil has little ability to contaminate ground water. b. Vinegar hypothesis = Vinegar has little ability to contaminate ground water. c. Laundry detergent hypothesis = Laundry detergent has a great ability to contaminate ground water. 2.
R C R' O R C H O an aldehyde a ketone Because they contain the polar carbonyl group, aldehydes and ketones are polar compounds. However, they cannot form hydrogen bonds one to another, as do alcohols. Therefore, the boiling points of aldehydes and ketones are less than those of alcohols of similar molecular weight, but greater than those of hydrocarbons of similar molecular weight. The solubility of aldehydes and ketones in H2O is significant if they contain less than five carbons. This is because hydrogen bonds to the water molecules are formed.
Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 The water was colorless with a slight smell of chlorine. 2 The water has a slight yellow tint to it. It also appeared to be oily and then it surfaced to the top showing that there is two levels with water more dense than vegetable oil . 3 The vinegar has a stronger scent than the water and appeared to have a slight change in color but not too noticeable.
Moreover, “The advent of the steam locomotive and railroad also saw the start of major pollution caused by big business, which is all too often seen today. Polluted rivers and smoke-filled air began to dominate cities, which in turn created poor living and working conditions that gave rise to socialism. The most direct pollution problem created by the locomotive was the carbon dioxide emitted into the atmosphere. It gave way to poor air quality and poor living conditions. Additionally, the steam locomotive supported businesses and industries where pollution was an accepted and normal thing.
Pollution is causing the atmosphere to decay and is helping generate global warming. Since there is not much pollution by hydroelectric plants then the earth should be able to last longer. Another main advantage is that water is provided free by nature there is minimum cost to convert it into energy. The earth is made up of 72% of water then there is a main advantage since we have enough water to last a long time. Hydropower plays a major role in reducing greenhouse gas emissions which could also help with less pollution released into the environment.
Xylitol is a naturally occurring alcohol found in most plant material. Xylitol cannot be broken down by bacteria, so no enamel-destroying acid is produced. Sugar-free gum sweetened with xylitol has been shown to reduce cavities and plaque because xylitol appears to inhibit bacterial growth, including growth of Streptococcus mutans -- the main bacteria implicated in dental decay. The sweetener sorbitol has the same benefit, but is only about one-third as effective as xylitol. Many clinical tests have shown significant reduction in tooth decay (cavities) by as much as 80% when using products sweetened with 100% xylitol.
It is a toxic gas with a pungent, irritating smell. Quantitative: Density: 2.63 g/cm³Molar mass: 64.066 g/molBoiling point: -10° C | Burning Coal to generate Electricity Mining and refining of Minerals Smelting Combustion of Fossil Fuels Volcanic Eruptions | Once in the atmosphere, sulfur dioxide reacts with more oxygen to produce sulfur