Bromine water - Study guides, Revision notes & Summaries

To be a pool operator you must - ANSWER-Complete a pool operator training course To prevent spinal injury - ANSWER-All of the above The strong suction in the pool (ENTRAPMENT) is the - ANSWER-Main Drain Electrical systems in the pool must have - ANSWER-GFIs (Ground Fault Circuit Interrupters?) The skimmer _____ prevents floating debris from re-entering the pool - ANSWER-WEIR What is filtration? - ANSWER-Physical process of water moving through the system What is the turnover ra...

REHS/RS Exams Compilations (Latest 2023/2024) Questions and Verified Answers| 100% Correct| Grade A Guaranteed Q: What is the horizontal part of the stairs you step on called? Answer: Tread Q: What is the term for a statistical estimate of an oral dose of a chemical that produces a lethal effect on half of an animal population? Answer: LD 50 Q: Rocky Mountain spotted fever is spread by: Answer: Ticks Q: Psittacosis is MOST commonly spread by: Answer...

The element bromine is extracted from seawater. Bromide ions are present in seawater in very low concentrations compared with chloride ions. (a) (i) Excess chlorine is added to acidified seawater, forming aqueous bromine. Write an ionic equation for the reaction of chlorine with bromide ions and explain how it shows that chlorine is more reactive than bromine. Equation: Explanation: ..............................................................................................................

AQA-7404-1-CHEMISTRY QUESTION PAPER 1-AS LEVEL-INORGANIC AND PHYSICAL CHEMISTRY-14May24. 0 1 A student does a series of reactions with aqueous solutions of some potassium halides (P, Q and R) of equal concentration. Each solution contains a different halide ion (chloride, bromide or iodide). The student adds 3 drops of bromine water to 3 drops of each aqueous solution of potassium halide. The student also adds 3 drops of the bromine water to 3 drops of water. Table 1 shows the student...

REHS Practice Test Questions and Answers 100% Accurate Soil permeability procedure involves evaluating a soil core or test pit. What does the procedure yield? a. Permeability estimated seepage rate b. Permeability estimated application rate c. Permeability estimated range b. Permeability estimate How does chlorine kill microorganisms and bacteria? a. By weakening enzymes and destroying internal organelles b. By attacking lipids in cell walls and destroying enzymes and structure...

1. Depth markings should be: clearly visible by people in the water. 2. Wading pool and spa drains must be: anti-vortex AND secured. 3. Pool drains must be: secured and fastened with screws if holes are present. 4. If at any time the filter equipment, chemical feed system, pump stops working, or the main drain cover has been removed or is broken, the pool must: be closed immediately 5. Pool must have: 1.0-10.0ppm Free Chlorine & 2.0-10.0ppm Bromine 6. Wading Pool must have: 2.0-10.0ppm Free...

CPO Test questions with correct answers 2023/2024 Depth markings should be clearly visible by people in the water. Wading pool and spa drains must be anti-vortex AND secured. Pool drains must be secured and fastened with screws if holes are present. If at any time the filter equipment, chemical feed system, pump stops working, or the main drain cover has been removed or is broken, the pool must be closed immediately Pool must have 1.0-10.0ppm Free Chlorine & 2.0-10.0ppm...

How to test for C=C decolourises bromine water Atomic Number number of protons in the nucleus of an atom of that element. Mass Number the sum of protons and neutrons in a nuclues of an atom Isotopes atoms of the same elementwith the same numberof protons but different nuber of neutrons Relative Atomic Mass the average mass of an atom of an element compared to a twelfth of the mass of an atom of carbon-12. Relative Isotopic Mass The mass of an atom of an isotope compared to one-twelfth ...

REHS Exam Questions with Accurate Answers 2024 Which of the following organisms are most resistant to unfavorable environmental conditions and indicate past of possibly intermittent pollution? a. fecal streptococci b. eschericha coli c. aerobacter aerogenes d. clostridium sporulates clostridium sporulates The presence of which of the following is most easily identified by laboratory analysis in water contaminated by feces? a. shigella dysenteriae b. coliform c. entamoeba hist...

Certified Pool Operator Final Exam 2024 Expected Questions and Answers (Verified Answers) whole range chlorine in a pool: ____ to _____ - ANSWERS 1, 5 ideal range chlorine in a pool: ____ to _____ - ANSWERS 2, 4 whole range chlorine in a spa: ____ to _____ - ANSWERS 2, 10 ideal range chlorine in a spa: ____ to _____ - ANSWERS 3, 5 4 types of solid chlorine - ANSWERS calcium hypochlorite, lithium hypochlorite, trichlor, dichlor liquid chlorine - ANSWERS sodium hypochlorite (NaOCl) ...