Assistance with Chemistry worksheet - Science
Need assistance with Chemistry 1 questions. Need to be saved in Word format. Do not save as a PDF. sc081_21_midterm_exam_1_v2_chemistry.docx sc081_21_midterm_exam_1_v2_chemistry.docx Unformatted Attachment Preview Name: Class: Date: Chemistry Part 1 Mid-term Exam Use the figure below to answer the question. 1. Infer a quantitative measurement that can be made from the scene shown. Be sure to use at least ONE COMPLETE CONTENT RELATED SENTENCE. (ref: 13) 2. Explain the difference between mass and weight. Be sure to use at least TWO COMPLETE CONTENT RELATED SENTENCES. (ref: 9). 3. Scientific methods may include three steps of study as listed below. Explain each step in detail with complete content related sentences. (ref: 12-16) a. Hypothesis b. Theory c. Scientific law 4. The figure shows a student mixing two chemicals. Is she following safe laboratory practices? Support your answer with details and discuss at least 4 rules that are not being followed. (ref: 19 – Table 2) 5. Show how to convert the temperature 84.7° C to Kelvin. Please include all steps and circle the final answer. (ref: 34-35) 6. Evaluate this dimensional analysis setup. A paperclip is 3.2 cm long. How many paperclips would fit in the length of a football field (100 yards) if 1 inch = 2.54 cm? Be sure to show ALL steps in the conversion. (ref: 40-46) Powered by Cognero Page 1 Name: Class: Date: Chemistry Part 1 Mid-term Exam 7. What is the relationship between accuracy and precision? Please use at least TWO complete content related sentences. (ref: 47-48). 8. A vessel contains 30 mL of water. A sample of 5.0 g of copper metal is dropped into this vessel, raising the level of water in it to 40 mL. What is the density of the copper sample? Please show all steps leading to the final answer. (ref: 3638) 9. Distinguish between homogeneous and heterogeneous mixtures. Give an example of each one. Please include at least FOUR complete content related sentences. (ref 80-82) 10. Two different compounds are formed by the elements nitrogen and oxygen. The first compound, compound P1, contains 64.17\% by mass nitrogen and 35.73\% by mass oxygen. The second compound, compound P2, contains 47.23\% by mass nitrogen and 52.79\% by mass oxygen. What is the ratio of nitrogen to a fixed mass of oxygen for the two compounds? Please show all steps and work leading to your final answer. (ref: 87-89) 11. Distinguish among solids, liquids, and gases on the basis of their shape, their volume, and how their particles are packed together. Please use a minimum of THREE complete content related sentences. (ref: 70-73) 12. You are provided a 20-mL solution of methanol and water. Be sure to respond to each part in complete content related sentences. (ref: 82-83) a. Name the technique that you would use to separate and identify the components of the solution. b. Provide specific details of the method used. c. State the advantage of the method you choose. 13. Write the nuclear equation to describe the alpha decay of Powered by Cognero . (ref: 122-124) Page 2 Name: Class: Date: Chemistry Part 1 Mid-term Exam 14. Write the chemical symbol for the isotope of cobalt with 37 neutrons. (ref: 115-121) 15. List and define the characteristics of a wave. You should have 4 complete content related sentences (one for each part of the wave). (ref: 136-137). 16. Predict how the wavelength and frequency of a wave would change if the amount of energy it carried was increased. Please use at least THREE content related sentences. (ref: 138). 17. Which rule for filling of orbitals by electrons in the element Silicon is being violated in the orbital diagram shown? Justify your answer with TWO complete content related sentences. (ref: 156-160) 18. Explain the TWO major problems with this electron dot diagram for the element Nitrogen (N). Please use at least TWO complete content related sentences. (ref: 161-162) 19. Calculate the wavelength of a body of mass 96.0 mg and moving with a velocity of 30.0 m/s. The value of Planck’s constant is 6.626 × 10–34 J s. Please show all steps and work leading to your final answer. (ref: 137-140) 20. Arrange the elements given below in the increasing order of their atomic size. (ref: 187-189) Element A 1s22s22p6 Element B 1s22s2 Element C 1s22s22p63s1 Element D 1s22s22p3 Powered by Cognero Page 3 Name: Class: Date: Chemistry Part 1 Mid-term Exam 21. Is this atom more likely to gain electrons or to lose electrons? Explain how you can tell. Please use at least TWO complete content related sentences. (ref: 206-209) 22. A metal, magnesium, forms an ion by losing two electrons. What will be the formula of one formula unit of the ionic compound between magnesium and oxygen? (ref: 218-224) 23. Use the Problem-Solving Strategy above to help you determine the name for Fe2O3.You may write your response as a series of steps. (ref: 218-224) 24. Explain why sulfur aluminide is not a correct name for the ionic compound formed between sulfur and aluminum. Please use at least 2 complete content related sentences. (Ref: 206-209) Powered by Cognero Page 4 Name: Class: Date: Chemistry Part 1 Mid-term Exam 25. Look at the electron-dot diagram for neon in the table above. Based on the table, explain why does neon have a very high ionization energy? Please use at least ONE complete content related sentence. (ref: 206-209) 26. Examine the Lewis structure below. If it is a correct structure for formaldehyde, CH2O, explain how it obeys the rules of drawing Lewis structures. If not, explain which rule(s) it does not follow and draw the correct structure. Please include at least 3 complete content related sentences. (ref: 253-260) 27. Why is PCl an exception to the octet rule, while PCl is not? Please use at least ONE complete content related sentence. (ref: 265-270) 28. Give the formula for each compound. (ref: 248-252) Name of Compound Formula of Compound dihydrogen oxide silver chloride chlorine trifluoride 29. Ammonia is formed with one nitrogen and three hydrogen atoms. What is the electron configuration of nitrogen? How many lone pairs of electrons are present in nitrogen in an ammonia molecule? (ref: 240-247) 30. Why is it necessary to use prefixes in naming covalent compounds? Please use at least THREE complete content related sentences. (Ref: 248-252) 31. Write and example of each type of chemical reaction with its symbolic equation. You can use generic or actual equations. (Ref: 289-298) a. single-replacement b. decomposition c. synthesis d. double-replacement e. combustion Powered by Cognero Page 5 Name: Class: Date: Chemistry Part 1 Mid-term Exam 32. Balance the following skeleton equation as illustrated below. (Ref: 282-288) 33. Define a decomposition reaction. Please use at least ONE complete content related sentence. (ref: 292) 34. Add the correct coefficients to properly balance this equation. (ref: 282-288) 35. Explain what is wrong with this balanced chemical equation and write the correct equation. (299-308) 36. A sample of aluminum chloride (AlCl3) has a mass of 37.2 g. Please show all steps and work leading to your final answer. (ref: 333-340) a. How many aluminum ions are present? b. How many chloride ions are present? c. What is the mass in grams of one formula unit of aluminum chloride? Please show all steps and working leading to your final answer. 37. Determine the empirical formula for succinic acid that is composed of 40.60\% carbon, 5.18\% hydrogen, and 54.22\% oxygen. Please show all steps and work leading to your final answer. (ref: 341-350) Powered by Cognero Page 6 Name: Class: Date: Chemistry Part 1 Mid-term Exam 38. A sample of calcium chloride, CaCl2, has a mass of 27.8 g. (ref: 330-340) a) How many moles of calcium chloride are in this mass? Please show all steps and work leading to your final answer. b) How many chloride ions are present? Please show all steps and work leading to your final answer. 39. List the steps needed to convert the number of atoms to the mass of an element. (Hint: there are 2). (ref: 325-330) 40. Explain the steps for naming an oxy-acid. (ref: 252 fig 12) Powered by Cognero Page 7 Name: Class: Date: Chemistry Part 1 Mid-term Exam Use the figure below to answer the question. 1. Infer a quantitative measurement that can be made from the scene shown. Be sure to use at least ONE COMPLETE CONTENT RELATED SENTENCE. (ref: 13) 2. Explain the difference between mass and weight. Be sure to use at least TWO COMPLETE CONTENT RELATED SENTENCES. (ref: 9). 3. Scientific methods may include three steps of study as listed below. Explain each step in detail with complete content related sentences. (ref: 12-16) a. Hypothesis b. Theory c. Scientific law 4. The figure shows a student mixing two chemicals. Is she following safe laboratory practices? Support your answer with details and discuss at least 4 rules that are not being followed. (ref: 19 – Table 2) 5. Show how to convert the temperature 84.7° C to Kelvin. Please include all steps and circle the final answer. (ref: 34-35) 6. Evaluate this dimensional analysis setup. A paperclip is 3.2 cm long. How many paperclips would fit in the length of a football field (100 yards) if 1 inch = 2.54 cm? Be sure to show ALL steps in the conversion. (ref: 40-46) Powered by Cognero Page 1 Name: Class: Date: Chemistry Part 1 Mid-term Exam 7. What is the relationship between accuracy and precision? Please use at least TWO complete content related sentences. (ref: 47-48). 8. A vessel contains 30 mL of water. A sample of 5.0 g of copper metal is dropped into this vessel, raising the level of water in it to 40 mL. What is the density of the copper sample? Please show all steps leading to the final answer. (ref: 3638) 9. Distinguish between homogeneous and heterogeneous mixtures. Give an example of each one. Please include at least FOUR complete content related sentences. (ref 80-82) 10. Two different compounds are formed by the elements nitrogen and oxygen. The first compound, compound P1, contains 64.17\% by mass nitrogen and 35.73\% by mass oxygen. The second compound, compound P2, contains 47.23\% by mass nitrogen and 52.79\% by mass oxygen. What is the ratio of nitrogen to a fixed mass of oxygen for the two compounds? Please show all steps and work leading to your final answer. (ref: 87-89) 11. Distinguish among solids, liquids, and gases on the basis of their shape, their volume, and how their particles are packed together. Please use a minimum of THREE complete content related sentences. (ref: 70-73) 12. You are provided a 20-mL solution of methanol and water. Be sure to respond to each part in complete content related sentences. (ref: 82-83) a. Name the technique that you would use to separate and identify the components of the solution. b. Provide specific details of the method used. c. State the advantage of the method you choose. 13. Write the nuclear equation to describe the alpha decay of Powered by Cognero . (ref: 122-124) Page 2 Name: Class: Date: Chemistry Part 1 Mid-term Exam 14. Write the chemical symbol for the isotope of cobalt with 37 neutrons. (ref: 115-121) 15. List and define the characteristics of a wave. You should have 4 complete content related sentences (one for each part of the wave). (ref: 136-137). 16. Predict how the wavelength and frequency of a wave would change if the amount of energy it carried was increased. Please use at least THREE content related sentences. (ref: 138). 17. Which rule for filling of orbitals by electrons in the element Silicon is being violated in the orbital diagram shown? Justify your answer with TWO complete content related sentences. (ref: 156-160) 18. Explain the TWO major problems with this electron dot diagram for the element Nitrogen (N). Please use at least TWO complete content related sentences. (ref: 161-162) 19. Calculate the wavelength of a body of mass 96.0 mg and moving with a velocity of 30.0 m/s. The value of Planck’s constant is 6.626 × 10–34 J s. Please show all steps and work leading to your final answer. (ref: 137-140) 20. Arrange the elements given below in the increasing order of their atomic size. (ref: 187-189) Element A 1s22s22p6 Element B 1s22s2 Element C 1s22s22p63s1 Element D 1s22s22p3 Powered by Cognero Page 3 Name: Class: Date: Chemistry Part 1 Mid-term Exam 21. Is this atom more likely to gain electrons or to lose electrons? Explain how you can tell. Please use at least TWO complete content related sentences. (ref: 206-209) 22. A metal, magnesium, forms an ion by losing two electrons. What will be the formula of one formula unit of the ionic compound between magnesium and oxygen? (ref: 218-224) 23. Use the Problem-Solving Strategy above to help you determine the name for Fe2O3.You may write your response as a series of steps. (ref: 218-224) 24. Explain why sulfur aluminide is not a correct name for the ionic compound formed between sulfur and aluminum. Please use at least 2 complete content related sentences. (Ref: 206-209) Powered by Cognero Page 4 Name: Class: Date: Chemistry Part 1 Mid-term Exam 25. Look at the electron-dot diagram for neon in the table above. Based on the table, explain why does neon have a very high ionization energy? Please use at least ONE complete content related sentence. (ref: 206-209) 26. Examine the Lewis structure below. If it is a correct structure for formaldehyde, CH2O, explain how it obeys the rules of drawing Lewis structures. If not, explain which rule(s) it does not follow and draw the correct structure. Please include at least 3 complete content related sentences. (ref: 253-260) 27. Why is PCl an exception to the octet rule, while PCl is not? Please use at least ONE complete content related sentence. (ref: 265-270) 28. Give the formula for each compound. (ref: 248-252) Name of Compound Formula of Compound dihydrogen oxide silver chloride chlorine trifluoride 29. Ammonia is formed with one nitrogen and three hydrogen atoms. What is the electron configuration of nitrogen? How many lone pairs of electrons are present in nitrogen in an ammonia molecule? (ref: 240-247) 30. Why is it necessary to use prefixes in naming covalent compounds? Please use at least THREE complete content related sentences. (Ref: 248-252) 31. Write and example of each type of chemical reaction with its symbolic equation. You can use generic or actual equations. (Ref: 289-298) a. single-replacement b. decomposition c. synthesis d. double-replacement e. combustion Powered by Cognero Page 5 Name: Class: Date: Chemistry Part 1 Mid-term Exam 32. Balance the following skeleton equation as illustrated below. (Ref: 282-288) 33. Define a decomposition reaction. Please use at least ONE complete content related sentence. (ref: 292) 34. Add the correct coefficients to properly balance this equation. (ref: 282-288) 35. Explain what is wrong with this balanced chemical equation and write the correct equation. (299-308) 36. A sample of aluminum chloride (AlCl3) has a mass of 37.2 g. Please show all steps and work leading to your final answer. (ref: 333-340) a. How many aluminum ions are present? b. How many chloride ions are present? c. What is the mass in grams of one formula unit of aluminum chloride? Please show all steps and working leading to your final answer. 37. Determine the empirical formula for succinic acid that is composed of 40.60\% carbon, 5.18\% hydrogen, and 54.22\% oxygen. Please show all steps and work leading to your final answer. (ref: 341-350) Powered by Cognero Page 6 Name: Class: Date: Chemistry Part 1 Mid-term Exam 38. A sample of calcium chloride, CaCl2, has a mass of 27.8 g. (ref: 330-340) a) How many moles of calcium chloride are in this mass? Please show all steps and work leading to your final answer. b) How many chloride ions are present? Please show all steps and work leading to your final answer. 39. List the steps needed to convert the number of atoms to the mass of an element. (Hint: there are 2). (ref: 325-330) 40. Explain the steps for naming an oxy-acid. (ref: 252 fig 12) Powered by Cognero Page 7 ... Purchase answer to see full attachment
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Your assignment may be more than 5 paragraphs but not less. INSTRUCTIONS:  To access the FNU Online Library for journals and articles you can go the FNU library link here:  https://www.fnu.edu/library/ In order to n that draws upon the theoretical reading to explain and contextualize the design choices. Be sure to directly quote or paraphrase the reading ce to the vaccine. Your campaign must educate and inform the audience on the benefits but also create for safe and open dialogue. A key metric of your campaign will be the direct increase in numbers.  Key outcomes: The approach that you take must be clear Mechanical Engineering Organic chemistry Geometry nment Topic You will need to pick one topic for your project (5 pts) Literature search You will need to perform a literature search for your topic Geophysics you been involved with a company doing a redesign of business processes Communication on Customer Relations. 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When you submit Milestone 3 pages): Provide a description of an existing intervention in Canada making the appropriate buying decisions in an ethical and professional manner. Topic: Purchasing and Technology You read about blockchain ledger technology. Now do some additional research out on the Internet and share your URL with the rest of the class be aware of which features their competitors are opting to include so the product development teams can design similar or enhanced features to attract more of the market. The more unique low (The Top Health Industry Trends to Watch in 2015) to assist you with this discussion.         https://youtu.be/fRym_jyuBc0 Next year the $2.8 trillion U.S. healthcare industry will   finally begin to look and feel more like the rest of the business wo evidence-based primary care curriculum. Throughout your nurse practitioner program Vignette Understanding Gender Fluidity Providing Inclusive Quality Care Affirming Clinical Encounters Conclusion References Nurse Practitioner Knowledge Mechanics and word limit is unit as a guide only. The assessment may be re-attempted on two further occasions (maximum three attempts in total). All assessments must be resubmitted 3 days within receiving your unsatisfactory grade. You must clearly indicate “Re-su Trigonometry Article writing Other 5. June 29 After the components sending to the manufacturing house 1. In 1972 the Furman v. Georgia case resulted in a decision that would put action into motion. Furman was originally sentenced to death because of a murder he committed in Georgia but the court debated whether or not this was a violation of his 8th amend One of the first conflicts that would need to be investigated would be whether the human service professional followed the responsibility to client ethical standard.  While developing a relationship with client it is important to clarify that if danger or Ethical behavior is a critical topic in the workplace because the impact of it can make or break a business No matter which type of health care organization With a direct sale During the pandemic Computers are being used to monitor the spread of outbreaks in different areas of the world and with this record 3. Furman v. Georgia is a U.S Supreme Court case that resolves around the Eighth Amendments ban on cruel and unsual punishment in death penalty cases. The Furman v. Georgia case was based on Furman being convicted of murder in Georgia. Furman was caught i One major ethical conflict that may arise in my investigation is the Responsibility to Client in both Standard 3 and Standard 4 of the Ethical Standards for Human Service Professionals (2015).  Making sure we do not disclose information without consent ev 4. Identify two examples of real world problems that you have observed in your personal Summary & Evaluation: Reference & 188. Academic Search Ultimate Ethics We can mention at least one example of how the violation of ethical standards can be prevented. Many organizations promote ethical self-regulation by creating moral codes to help direct their business activities *DDB is used for the first three years For example The inbound logistics for William Instrument refer to purchase components from various electronic firms. During the purchase process William need to consider the quality and price of the components. In this case 4. A U.S. Supreme Court case known as Furman v. Georgia (1972) is a landmark case that involved Eighth Amendment’s ban of unusual and cruel punishment in death penalty cases (Furman v. Georgia (1972) With covid coming into place In my opinion with Not necessarily all home buyers are the same! When you choose to work with we buy ugly houses Baltimore & nationwide USA The ability to view ourselves from an unbiased perspective allows us to critically assess our personal strengths and weaknesses. This is an important step in the process of finding the right resources for our personal learning style. Ego and pride can be · By Day 1 of this week While you must form your answers to the questions below from our assigned reading material CliftonLarsonAllen LLP (2013) 5 The family dynamic is awkward at first since the most outgoing and straight forward person in the family in Linda Urien The most important benefit of my statistical analysis would be the accuracy with which I interpret the data. 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After establishing where each member is in relation to the family A Health in All Policies approach Note: The requirements outlined below correspond to the grading criteria in the scoring guide. At a minimum Chen Read Connecting Communities and Complexity: A Case Study in Creating the Conditions for Transformational Change Read Reflections on Cultural Humility Read A Basic Guide to ABCD Community Organizing Use the bolded black section and sub-section titles below to organize your paper. For each section Losinski forwarded the article on a priority basis to Mary Scott Losinksi wanted details on use of the ED at CGH. He asked the administrative resident