Learn about the basic biology of brine shrimp. Hypothesis In this lab I hypothesize that the most lethal household chemical is bleach and that is has the lowest LD50. Materials: ● ● ● ● ● ● ● ● ● ● ● 1000 ml beaker/2 gallon tank air pump air stone tubing eye droppers 10 ml pipettes graduated cylinders small petri dishes dissecting scopes/hand lenses beakers stopwatch live brine shrimp Lysol Bleach vinegar acetone (nail polish remover) Procedures: Place live brine shrimp in a small aquarium tank or a 1000ml beaker with an aerator
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and health profile of the things they buy. For example‚ Method says we should throw away the bleach‚ we don’t need bleach. Method says bleach is nasty stuff and doesn’t get your clothes clean; better yet we don’t need it to get our clothes clean. Method states that their technology in their product can get our clothes clean without bleach. This is a product we don’t need in our home. Method states that bleach and other surface cleaners contain all sorts of nasty chemicals that are toxic to breathe
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The concept of belonging and acceptance is a major part of our modern society. Most stories and films represent belonging or alienation in one way or another. Strictly Ballroom‚ directed by Baz Luhrmann represents the concept of acceptance and rejection through the use of many film and language techniques. There are many concepts of belonging shown in the film Strictly Ballroom. This is shown through several film techniques like role of the characters‚ costumes‚ make-up‚ hair‚ music and camera angles
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can slow the growth of‚ or kill‚ microorganisms. Hypothesis: The antiseptic that will prevent the growth of bacteria the most is iodine. The disinfectant that will prevent the growth of bacteria the most is bleach. Procedure: To begin the lab‚ turn the agar plate over and divide the plate into four quadrants and label the agar plate whether you used the E. coli or B. megaterium and number the quadrants 1 through 4. Please keep in mind that one pair will
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POSTLAB REPORT (65 pts) 1. State the objective(s) of the lab. (5 pts) • To analyze the effects of specific liquids on a variety of materials • To observe potential hazards • To investigate the effects of strong bases‚ strong acids‚ acetone and bleach on a variety of materials which include sugar‚ cotton‚ nylon‚ hair‚ polystyrene‚ egg white‚ egg yolk‚ and aluminum foil. 2. Give a summary of your observations for each of the experiments. (24 pts) Sugar + H2SO4 Black clumped substance formed
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Simultaneous measurement of radon and thoron exhalation rate from soil and building materials C. Cosma‚ O. Cozar ‚ T. Jurcut‚ C. Baciu ‚ I. Pop Babes-Bolyai University‚ Physics Department‚ 3400-Cluj-Napoca‚ Romania University of Oradea‚ Sciences Department‚ 3700‚ Oradea‚ Romania Babes-Bolyai University‚ Geology Department‚ 3400-Cluj-Napoca‚ Romania Technical University‚ Physics Department‚ 3400‚ Cluj-Napoca‚ Romania Our paper presents two methods for simultaneous measurement of
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Top of Form Bottom of Form Chemical Compound Formulas Chemistry is the study of the composition of matter and its transformation. A substance can be considered matter with definite properties that establishes its identity. The tremendous number of chemical compounds has been categorized into numerous categories. A broad classification distinguishes between inorganic and organic compounds. Organic compounds are carbon based. Inorganic compounds exclude compounds exclude compounds based on carbon
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annoying how I have to walk Adeline to her kindergarten because I have already been going to school for five years. I can’t understand why she can’t walk herself to school; I mean she has her own legs. Finally‚ after complaining and complaining‚ Nai Nai finally has told the rickshaw puller to pull us to school and bring us home. Yay! I now don’t have to listen to Adeline complaining that her legs hurt‚ or that I need to slow down and wait for her. She complains so much‚ but I also still am mad at
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including bleach‚ lemon juice‚ soda‚ and baking soda were used. There was also an unknown solution in which the pH level was used to determine which solution it was. The pH scale is 1-14‚ a pH of 7 is neutral‚ less than 7 is acidic‚ and greater than 7 is acidic. Materials: * pH strips * 20 test tubes * Disposable transfer pipettes * Indicators * Methyl Orange * Bromocresol green * Bromocresol purple * Phenol red * Solutions included * Bleach
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Moreover they have damaged Vietnamese environment a lot since they were established‚ especially Vedan Vietnam. “Vedan Vietnam Enterprise Corporation Limited (Vedan Vietnam) was established in 1991 in Phuoc Thai Commune‚ Long Thanh district‚ Dong Nai Province”.(Vedan‚ n.d). Since Vedan operated‚ it has created about 2.000 jobs with an average salary 2.1 million VND/month‚ However‚ they have also destroyed the local environment especially Thi Vai river. (Pham‚ n.d.). Đường (2008) reported that
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