____________ in one atom of an element. In order to calculate the number of neutrons you must subtract the _________________ from the _____________________. 11. Give the symbol of and the number of protons‚ electrons and neutrons in one atom of: a. Lithium B. Neon C. Potassium ___________________ ______________________ ______________________ 11. Define isotope – 12. How many protons‚ neutrons‚ and electrons would be in the isotope Boron 7. ___________________________ Be able to draw and identify
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An acid-base titration is carried out by adding an acidic titrant to a basic solution. At which point should the titration be stopped and the volume of titrant used be recorded? Answer : when the solution reaches the endpoint Question = Buffers are substances‚ or mixtures of substances‚ that (help maintain a relatively constant pH when small amounts of acids or bases are added) Question= Which of the following statements best describes what determines whether an acid is a strong acid
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A nuclear weapon is commonly defined as a device‚ which uses a nuclear reaction for destructive means. There are six different types of nuclear bombs. The two main types of nuclear weapons: atom bombs and hydrogen bombs. The hydrogen bomb is the most powerful‚ destructive bomb of all. In this essay I’m going to give a brief history of the hydrogen bomb‚ the chemistry behind the bomb‚ and how much destruction the hydrogen bomb can do. After the Soviet Union’s atomic bomb success during the cold war
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loosely packed metallic lattices. 6. Alkali metals‚ except lithium‚ show photoelectric effect. Due to small size and high ionization enthalpy‚ the electrons of lithium cannot be emitted. 7. Alkali metals do not form dipositive ions because of their very high second ionization enthalpies. 8. All alkali metals are paramagnetic but their salts are diamagnetic. 9. Alkali metals impart characteristic colors to the flame‚ i.e.‚ lithium imparts crimson red‚ sodium imparts golden yellow‚ potassium
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levels‚ and prevents heartburn. Stevia increases the strength of muscle contractions that pump blood to the heart. The few warnings on this alternative natural sweetener include taking Stevia decreases how well the body gets rid of lithium‚ which increases how much lithium in the body. This could result in serious side effects such as bloating‚ nausea‚ dizziness‚ muscle pain‚ and numbness. In people with type 2 diabetes taking Stevia with the medication can lower blood sugar too much. This can also
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Unknown Solutions Possible Identification + Reason(s). (Document Created by: RED) Example Unknown ● (1) I believe this solution to be Copper(II)Hydroxide because of the following reasons: ○ It has a pH value of 12 and burning it produces a bluegreen color. ○ It produced bubbles when mixed with Zn‚ Al and Fe which are all more reactive than copper. ● (2) I believe this solution to be Sodium Sulfate because of the following reasons: ○ Blah blah blah
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example‚ author considers an example of Boeing’s factory in Everett‚ Wash. In this example‚ author briefs the disruptions that occurred in occurred just last January 2013‚ when the Dreamliner was grounded by the FAA due to overheating of its new lithium-ion battery. Article Review: Resilience is at the heart of current supply chain management thinking. Understanding the concept‚ and where to invest in resilience‚ can lead to supply chains that quickly respond to and recover from costly disruptions
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die‚ and I can live with it‚ but not 1% more.” (Niki Lauda). Electric cars are the answer to bring the percentage lower. The majority of the electric vehicles in the market have lithium-ion batteries installed. However‚ people are doubting the safeness of the use of lithium-ion batteries . This is due to the fact that lithium-ion batteries have a tendency to flare up easily. So‚ the real question is‚ is it really safe to use these batteries for electric cars. The answer is yes. The improvement in battery
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of reaction of Alkali metals and Alkaline Earth meatals are compared in this lab. The pH of each of the resulting metal solutions are tested and the products of the reaction between calcium and water is discovered. The tested elements are sodium‚ lithium‚ potassium and calcium and each of them were placed in a beaker filled with water. The resulting solutions pH levels were tested with litmus paper. There were more steps for caclium because it is the only Alkaline Earth metal. For calcium‚ the gas
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Presenting Problem: Pt is a 17 year old African American female presenting with PTSD‚ MDD‚ moderate with psychosis historically but no psychosis presently. Pt is presently transitioned to Riverside Acute Center due to making statements of self-harm and becoming aggressive towards staff that caused her to be restrained in Riverside Residential Unit. The therapist who has been working with her in residential believes that she is self-sabotaging. She has become increasingly volatile and has lost her
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