CHAPTER 5 GASES AND THE KINETICMOLECULAR THEORY 5.1 Plan: Review the behavior of the gas phase vs. the liquid phase. Solution: a) The volume of the liquid remains constant‚ but the volume of the gas increases to the volume of the larger container. b) The volume of the container holding the gas sample increases when heated‚ but the volume of the container holding the liquid sample remains essentially constant when heated. c) The volume of the liquid remains essentially constant‚ but the volume of
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Hunter School: Quality Academics Table of contents What is the Phosphorus Cycle……………………………………… 1 Description of Phosphorus …………………………………………. 1 Pictures………………………………………………………………2-3 Description of the Cycle…………………………………………….4-6 Human Influences……………………………………………………7 Bibliography………………………………………………………….8 What is the Phosphorus cycle? The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere‚ hydrosphere‚ and biosphere. Unlike many other
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tin(IV) sulfide HNO2 e. nitrous acid 2. Write the Stock names for the following compounds: magnesium perchlorate a. Mg(ClO4)2 iron(II) nitrate b. Fe(NO3)2 iron(III) nitrite c. Fe(NO2)3 cobalt(II) oxide d. CoO nitrogen(V) oxide e. dinitrogen pentoxide 3. 13 atoms a. How many atoms are represented by the formula Ca(HSO4)2? 4.0 mol b. How many moles of oxygen atoms are in a 0.50 mol sample of this compound? +6 c. Assign the oxidation number to sulfur in the HSO4 _ anion. 4. Assign the oxidation
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44052/5 OCR is an exempt Charity Turn over 2 EQUATIONS speed = distance time taken acceleration = change in speed time taken force = mass × acceleration work done = force × distance power = work done time kinetic energy = 1 mv2 2 potential energy = mgh weight = mass × gravitational field strength resistance = © OCR 2012 voltage current 3 BLANK PAGE Question 1 begins on page 4. PLEASE DO NOT WRITE ON THIS PAGE © OCR 2012
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1.1 The atoms‚ during bond formation‚ may lose or gain electrons (valence electrons) in order to achieve a stable state‚ or technically speaking‚ a stable electron configuration. Usually metal atoms lose electrons and non-metals gain electrons in order to achieve electron stability. When dealing with bond formation (Ionic bonding for example) we need to analyse the outer shell of the atom. Metals usually present 1‚ 2 or 3 electrons in their outer shell therefore they have to give them away to achieve
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A bone disease that forms when kidneys do not maintain enough calcium and phosphorus in the blood Common problem with kidney disease and dialysis Often called the "silent crippler" because some symptoms are not present until being on dialysis (a process for removing waste and excess water from blood) for a couple years To test for renal osteodystrophy‚ doctors may take samples of blood to measure the levels of phosphorus‚ calcium‚ PTH (parathyroid hormone)‚ and calcitriol (Vitamin D) Bone Biopsy-
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aerated filters 2.3.7 Rotating biological contactors 2.3.8 Membrane bioreactors 2.3.9 Secondary sedimentation o 2.4 Tertiary treatment 2.4.1 Filtration 2.4.2 Lagooning 2.4.3 Nutrient removal 2.4.3.1 Nitrogen removal 2.4.3.2 Phosphorus removal o 2.5 Disinfection o 2.6 Odour Control • 3 Package plants and batch reactors • 4 Sludge treatment and disposal o 4.1 Anaerobic digestion o 4.2 Aerobic digestion o 4.3 Composting o 4.4 Incineration o 4.5 Sludge disposal • 5 Treatment
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Lemna minor‚ or duckweed‚ is a small plant that floats on the surface of stagnant water that is usually rich in nutrients. Phosphorus is an important macronutrient in the growth of aquatic plants. We tested the effect of phosphorus on duckweed population growth using a control medium rich in nutrients and compared it to the population growth in a medium that lacked phosphorus. Each treatment had 5 replicates that began in beakers with 40 duckweed thalli‚ grown in a laboratory setting for 14 days under
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Shannon Wood 11/21/2012 Joel‚ Griffin‚ Blake Section #005 ISP 217L Lab 4- Phosphorus Where Does Phosphorus Go? My hypothesis is that dissolved Phosphate will change for the total phosphorus when left under a light. I believe that suspended phosphorus has the biggest impact on the eutrophication of lakes. When there is an increase of phosphorus in lakes‚ this leads to and increase in phytoplankton. This then leads to a decrease in water clarity. The reason that this is relevant is because
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Self-assessment practice tests Test 1 – Material from Chapters 2–4 | 45 minutes 1 The kinetic theory suggests different arrangements for the atoms or molecules in the three states of matter. The diagrams below show how evidence suggests the particles are arranged in the three states of matter. 1 2 3 What are the three states shown? 1 A B C D 2 gas liquid solid liquid 2 liquid gas liquid solid 3 solid solid gas gas The graph shows the heating curve for a metal that is solid at room temperature (25
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