What are the elements in PVC? Answer: Carbon, hydrogen, chlorine. If it's flexible, there's probably some oxygen in there as well. Rigid PVC is poly(vinyl chloride), where vinyl chloride is ethene with one of the hydrogens replaced by a chlorine atom. Flexible PVC ... sometimes called simply "vinyl" ... has additives like octyl phthalate (which contains carbon, hydrogen, and oxygen) that keep the polymer swollen and flexible. What elements are electrical wiring made out of? Answer: Almost
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great on my cruddy stove top, as well as cleaning the grime and soap scum in the tub and bathroom sink. Smells good enough to eat!) 1 2/3 c. baking soda ½ c. liquid soap (Dr. Bronner’s) ½ c. water 2 T. white vinegar Essential oil (optional) ~I like peppermint Stir soap into baking soda. Add water and stir until smooth. Add vinegar and essential oil and pour into squeeze bottle. Great for tub and bathroom sink. Whitening Scouring Powder 1 c. baking soda 2 t. cream of tartar 1/8 c. borax
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Diffusion All these effects are due to diffusion. Diffusion is the movement of one type of gas molecules through another. Perfume through air, manure through air, food through air, copper sulphate through water and so on. Lets think about the diffusion of perfume. The molecules of air in the room and the molecules of perfume in the spray are all moving around quickly and randomly (in all directions). The molecules of perfume collide with other molecules of their own type and also with
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(story about a man standing on a burning oil platform in the north sea, deciding whether he should jump in the freezing water below) . . We too, are standing on a "burning platform," and we must decide how we are going to change our behavior. Over the past few months, I've shared with you what I've heard from our shareholders, operators, developers, suppliers and from you. Today, I'm going to share what I've learned and what I have come to believe. I have learned that we are standing on
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up from surfaces (such as bathroom handles, changing tables, diaper pails, or toys) that contain stool from an infected person or animal. Drinking water or using ice made from water sources where Giardia may live (for example, untreated or improperly treated water from lakes, streams, or wells) Swallowing water while swimming or playing in water where Giardia may live, especially in lakes, rivers, springs, ponds, and streams Eating uncooked food that contains Giardia organisms Having contact
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Case 1: Sea-Soft Water Company The Sea-Soft Water Company distributes its water softeners to dealers upon their request. The contract agreement states that dealers may have 90 days to sell and pay for the softeners. Until the 90-day period is over, any softeners may be returned at the dealer's expense and with no further obligations on the dealer's part. If the water softeners are damaged while in the hands of a dealer, Sea-Soft agrees to accept the return of the damaged softeners with no obligation
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In a dark room filled with stuffed animals, was me in my bed. Being half asleep, the illness bothered me. With fever ache and painful throat, I could barely open my eyes to feel myself. The back of my eyes balls was boiling, my throat as dry as the tree branches, I want to call for help. Help from my mother, father, anyone out there. I tried to sit up, my legs was too numb to move, every inch of muscles was stiffen, like I was mummified. The sound of the cracking stairs alarmed me; I turned my
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Geothermal energy represents the inner heat of the earth, produced largely by the decay of radioactive elements in the mantle and center. The three ways that the heat is found is both wet and dry steam (wet steam has drops of water in it), hot water and dry volcanic rocks. We know that the temperature of the earth at depths of 25 to 50 km range from 200`C to 1000`C. There are areas of the earth where local concentrations of heat occur, just as mineral concentrations do. Most of these
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Water Resources and Sustainability Notes Distribution of fresh and salt water around the world: - 97.5% of all water on the Earth is salt water, leaving only 2.5% fresh water. - Nearly 70% of that fresh water is frozen in the icecaps - Most of the remainder is present as soil moisture, or lies in deep underground aquifers as groundwater is not accessible to human use. - Less than 1% of the world’s fresh water is accessible for human uses and this water is found in lakes, rivers and reservoirs
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James Shin Per 7b/8 Ecology Take Home Test 1) In the given info, there were two groups, an experimental and control group of flowers and sagebrush in a desert landscape that were identical except that the experimental group had a fence enclosed around it. Also, there was a predation relationship between the wildflowers and the kangaroo rats because the kangaroo rats eat wildflowers. Assuming that the fence was limiting the space of the experimental plot, competitive exclusion caused the extinction
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