Vegetable oil is hydrophobic and there for is not water soluble but alcohol on the other hand is completely soluble with vegetable oil. 3. We know from observing the vegetable oil and water together that the relative density of water is greater then the density of vegetable oil because the oil will always recede to the surface of water. 4. Emulsification agents allow for two unbendable liquids to be combined, the detergent hold properties that both substances can in return blend with leaving detergent dissolving in both the water as well as the alcohol unlike other substances we tried to
The purpose of washing the test tubes thoroughly is so the chemicals don’t cross contaminate and affect the outcome of another section of the lab. Hypothesis: 1. If a substance contains lipids then when rubbed onto a paper bag a transparent or opaque spot will appear. 2. Is a substance contains starches then when iodine solution is added to the substance it will change from yellow-brown to blue-black.
This technique prevents the product to contact other reactants, and leave the heating environment which might cause side reactions. The removal of the product also helps to shift the equilibrium position of the incomplete reaction to the right hand side, and prevents backwards reaction, resulting in an increased yield of products. This experiment also introduces the idea of azeotrope. An azeotrope is a mixture of two or more pure compounds in such a ratio that its composition cannot be changed by simple distillation. This is because when an azeotrope is boiled, the resulting vapour has the same ratio of constituents as the original mixture of liquids.
Which contaminant seemed to have the most potent effect on the water? The effects of the contaminated water were that the mixture showed each water type to have a brown color to them. The water type that seemed to have both a surprising and potent effect was the water and soil mixture. I would have thought with using strictly water and potting soil the water turned the darkest brown out of all the other contaminants that I used for the mixture. The vinegar and soil mixture seemed to have cleaner look to them.
It can also reduce cooling and stormwater runoff. Green roofs can used to filter pollutants and carbon dioxide out of the air which helps lower disease rates such as asthma. Besides, green roof helps to insulate a building for sound; the soil helps to block lower frequencies and the plants block higher frequencies. With green roofs, water is stored by the substrate and then taken up by the plants from where it is returned to the atmosphere through transpiration and evaporation. Green roofs not only retain rainwater, but also moderate the temperature of the water and act as natural filters for any of the water that happens to run
Water (chemical formula: H2O) is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of living things. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure, but it often co-exists on Earth with its solid state, ice; and gaseous state, steam (water vapor). It also exists as snow, fog, dew and cloud Water is of major importance to all living things; in some organisms, up to 90% of their body weight comes from water. Up to 60% of the human adult body is water.
It dries quickly, it is very light on weight, you can actually squeeze it, if it is wet and it will dry immediately. It keeps you warm and dry, it is soft and it should not be made from cotton, because when you are doing some kind of activity you sweat and then the sweat blotted to your clothes and you reduce heat that cools down and make you feel wet and cold. You can take
Infectious waste would include humans who have diarrhoea and this type of waste would have the risk of cross-contamination. Non-infectious waste would include household waste such as paper which carries a low level of risk with the potential of paper cuts. 3.2 To dispose of the different types of waste safely and without risk to others is the use of colour coding. This indicates the type of waste contained in the bags or containers. For example non-infectious waste in a nursing home, such as human faeces is disposed of in yellow clinical bag and collected usually by an outside company who will incinerate the waste.
It is also a weed suppresser to prevent other weeds from growing because it grows so fast and densely, it blocks out sunlight to other weeds that are trying to grow. This allows farmers to use hemp as a replacement for herbicides and reducing toxins into the ground and surrounding water sources. Hemp can be used to replace petroleum and plastic products and are still biodegradable so it reduces the amount dumped into landfills. Since hemp can be used to replace gasoline and petroleum essentially replacing oil this reduces the environmental risks and impacts of oil drilling. This is a major environmental impact made when off shore drilling accidents happen made seen to the public by the BP accident in April of 2010 where 200 million gallons of crude oil was “spewed” into the ocean.
A clean house can prevent infestations of disease-carrying vermin, such as rodents, cockroaches, fleas and lice. In addition, making sure your bathroom is sanitary can prevent the spread of dangerous viruses, such as hepatitis A, which can be spread through contact with fecal matter, according to the CDC. Merriam-Webster's Medical Dictionary defines hygiene as practices conducive to health. This includes taking care of your body, maintaining good oral health and eliminating odors. The Department of Health in the Philippines explains that poor personal hygiene can cause skin diseases and worm infestations, diarrheal diseases and dental diseases.