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2. The most convenient way to prepare the element polonium is to expose bismuth (which is...
c. Iodine (l) is an element that exists as numerous isotopes, most of which are radioactive....
c. Iodine (l) is an element that exists as numerous isotopes, most of which are radioactive. i. Complete Table 1 for three of the neutral isotopes of iodine. (two words deleted to improve the sense) See Blank Table 1 - Word and Blank Table 1 - Open Office. (4 marks) Table 1 The atomic particles in the neutral isotopes of iodine. Isotope Protons Neutrons Electrons 1-123 ?? 70 ?? I-125 ?? ?? ?? |-131 ?? ?? ??
1. Single Replacement Reactions- Write the correctly balanced chemical cquation for each and write which element...
1. Single Replacement Reactions- Write the correctly balanced chemical cquation for each and write which element is more active. Be sure to include state labels on your equations. Note that all metals will form a cation with a +2 charge if they react. a. If a piece of manganese metal is placed into a solution of zinc nitrate, Zn(NO) the manganese begins to dissolve and a precipitate begins to form on the bottom of the test tube. Write a balanced...
Please solve this C language progrm (2-D Array program) the most basic way ! Thank You!...
Please solve this C language progrm (2-D Array program) the most basic way ! Thank You! Write a function that takes a 4 x 4 array of integers as its parameter. The function must use two nested for-loops to determine the largest integer in the array as well as its row and column numbers. Recall that C-functions cannot return multiple values. Use pointers in the function parameter list to relay the results to the caller program. Write another function, which...
1. Which is the most electronegative element in 2-bromoethanol (BrCH2CH2OH)? 2. Identify a carbon that is...
1. Which is the most electronegative element in 2-bromoethanol
(BrCH2CH2OH)?
2.
Identify a carbon that is sp hybridised. (Use a letter a-d, one letter only.) CH2-CH=CH-CH2OH a b c d
Part A Which element would most likely form an ion with a charge of -2? AM...
Part A Which element would most likely form an ion with a charge of -2? AM O Na O N O Te Submit My Answers Give Up
Hello, these are part of one question, please show work. Data Sheet Chemical Reactions 2. Obtain a...
Hello, these are part of one question, please show work.
Data Sheet Chemical Reactions 2. Obtain and clean with sandpaper to expose the surface: 3 pieces of zine, 2 pieces of copper and 1 piece of lead. Place 6 test tubes in a rack and label each appropriately. Observe the contents of each of the test tubes for evidence of a reaction. Record your observations in the tables below TABLE 55 Observations Tube I: Copper strip and approximately 1 mL...
CHAPTER 2 pH-specific requirement? 5. Which enzyme has the most Based on the optimum pH for...
CHAPTER 2 pH-specific requirement? 5. Which enzyme has the most Based on the optimum pH for pepsin, in which organ would you expect to find pepsinf 6. 7. Arginase is one of the enzymes in a sequence of reactions that converts ammonia into urea. Use this information to explain why arginase has an optimal pH of around 10. Complete the following table by filling each line with the correct value. The All or Nothing Principle applies to this question. Therefore,...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which element makes up the highest percentage? A) sulfur B) sodium C) oxygen D) potassium E) carbon 13) An atom of an element has atomic number of 6 and mass number of 14. From this information, we can determine that the nucleus has : A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neutrons....
Q 1 & 2 1. Sodium ion (Na) and calcium ion (Ca2) produce nearly the same color in a flame test (yellow and yello...
Q 1 & 2
1. Sodium ion (Na) and calcium ion (Ca2) produce nearly the same color in a flame test (yellow and yellow-orange, respectively). Describe a way to differentiate between the two using a solution of Na,CO and write the correct balanced equation(s). (Hint: recall the solubility rules for Na ion.) A saturated solution of an unknown solid reacted with AgNO, to give a pale yellow precipitate, and also reacted with Pb(NO), to give a white precipitate. Based on...
Consider " 2 S2O32-". Which of the following statements is FALSE?
Consider " 2 S2O32-". Which of the following statements is FALSE? There are 3 O atoms contained in each unit. There are 4 S atoms contained in two units. Each unit of S2032 has a ratio of 1 S: 1.5 O Two units of S2032 have an overall charge of -4. 10 atoms are all connected together.The chemical equation H2 (3)+ O2 (3)>H2O (3) is not balanced. This equation CANNOT be balanced by adding a subscript of 2 behind the oxygen in H20. In other...
c. Iodine (l) is an element that exists as numerous isotopes, most of which are radioactive. i. Complete Table 1 for three of the neutral isotopes of iodine. (two words deleted to improve the sense) See Blank Table 1 - Word and Blank Table 1 - Open Office. (4 marks) Table 1 The atomic particles in the neutral isotopes of iodine. Isotope Protons Neutrons Electrons 1-123 ?? 70 ?? I-125 ?? ?? ?? |-131 ?? ?? ??
1. Single Replacement Reactions- Write the correctly balanced chemical cquation for each and write which element is more active. Be sure to include state labels on your equations. Note that all metals will form a cation with a +2 charge if they react. a. If a piece of manganese metal is placed into a solution of zinc nitrate, Zn(NO) the manganese begins to dissolve and a precipitate begins to form on the bottom of the test tube. Write a balanced...
1. Which is the most electronegative element in 2-bromoethanol
(BrCH2CH2OH)?
2.
Identify a carbon that is sp hybridised. (Use a letter a-d, one letter only.) CH2-CH=CH-CH2OH a b c d
Part A Which element would most likely form an ion with a charge of -2? AM O Na O N O Te Submit My Answers Give Up
Hello, these are part of one question, please show work.
Data Sheet Chemical Reactions 2. Obtain and clean with sandpaper to expose the surface: 3 pieces of zine, 2 pieces of copper and 1 piece of lead. Place 6 test tubes in a rack and label each appropriately. Observe the contents of each of the test tubes for evidence of a reaction. Record your observations in the tables below TABLE 55 Observations Tube I: Copper strip and approximately 1 mL...
CHAPTER 2 pH-specific requirement? 5. Which enzyme has the most Based on the optimum pH for pepsin, in which organ would you expect to find pepsinf 6. 7. Arginase is one of the enzymes in a sequence of reactions that converts ammonia into urea. Use this information to explain why arginase has an optimal pH of around 10. Complete the following table by filling each line with the correct value. The All or Nothing Principle applies to this question. Therefore,...
..ll T-Mobile 2:05 PM 29% 12) of the four elements most prevalent in living organisms, which element makes up the highest percentage? A) sulfur B) sodium C) oxygen D) potassium E) carbon 13) An atom of an element has atomic number of 6 and mass number of 14. From this information, we can determine that the nucleus has : A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neutrons....
Q 1 & 2
1. Sodium ion (Na) and calcium ion (Ca2) produce nearly the same color in a flame test (yellow and yellow-orange, respectively). Describe a way to differentiate between the two using a solution of Na,CO and write the correct balanced equation(s). (Hint: recall the solubility rules for Na ion.) A saturated solution of an unknown solid reacted with AgNO, to give a pale yellow precipitate, and also reacted with Pb(NO), to give a white precipitate. Based on...
Consider " 2 S2O32-". Which of the following statements is FALSE? There are 3 O atoms contained in each unit. There are 4 S atoms contained in two units. Each unit of S2032 has a ratio of 1 S: 1.5 O Two units of S2032 have an overall charge of -4. 10 atoms are all connected together.The chemical equation H2 (3)+ O2 (3)>H2O (3) is not balanced. This equation CANNOT be balanced by adding a subscript of 2 behind the oxygen in H20. In other...
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