Hmwk chapter2 - The following end-of-chapter exercises will help you practice what you have learned and prepare to do the homework problems Exercise

Hmwk chapter2 - The following end-of-chapter exercises will...

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The following end-of-chapter exercises will help you practice what you have learned and prepare to do the homework problems Exercise 2.29 A hydrogen-filled balloon was ignited and 2.00 of hydrogen reacted with 16.0 of oxygen. Part A How many grams of water vapor were formed? (Assume that water vapor is the only product.) ANSWER: = Answ er not displa yed Exercise 2.31 Two samples of carbon tetrachloride were decomposed into their constituent elements. One sample produced 38.9 of carbon and 448 of chlorine, and the other sample produced 14.8 of carbon and 134 of chlorine. Part A Are these results consistent with the law of definite proportions? ANSWER: Cor rec t Part B Show why or why not. Essay answers are limited to about 500 words (3800 characters maximum, including spaces). ANSWER: My Answer: Because they need to be the same amounts starting and the reaction, but in this case the results have a big amount Exercise 2.33
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The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 29.7 of sodium upon decomposition. Part A How much fluorine (in grams) was formed? ANSWER: = Answ er not displa yed Exercise 2.37 Sulfur and oxygen form both sulfur dioxide and sulfur trioxide. When samples of these were decomposed the sulfur dioxide produced 3.45 oxygen and 3.46 sulfur, while the sulfur trioxide produced7.50 oxygen and 5.00 sulfur. Part A Calculate the mass of oxygen per gram of sulfur for sulfur dioxide. ANSWER: = Answer not displayed Part B Calculate the mass of oxygen per gram of sulfur for sulfur trioxide. ANSWER: = Answer not displayed Exercise 2.39 Which of the following statements are consistent with Dalton's atomic theory as it was originally stated? Part A Sulfur and oxygen atoms have the same mass. ANSWER: consistent inconsistent Answer not displayed
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Part B All cobalt atoms are identical. ANSWER: consistent inconsistent Answer not displayed Part C Potassium and chlorine atoms combine in a 1:1 ratio to form potassium chloride. ANSWER: consistent inconsistent Answer not displayed Part D Lead atoms can be converted into gold. ANSWER: consistent inconsistent Answer not displayed Part E Part not displayed Exercise 2.41 Which of the following statements are consistent with Rutherford's nuclear theory as it was originally stated? Part A The volume of an atom is mostly empty space. ANSWER: consistent inconsistent Answer not displayed Part B The nucleus of an atom is small compared to the size of the atom. ANSWER: consistent Answer
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inconsistent not displayed Part C Neutral lithium atoms contain more neutrons than protons. ANSWER: consistent inconsistent Answer not displayed Part D Neutral lithium atoms contain more protons than electrons. ANSWER: consistent inconsistent Answer not displayed Part E Part not displayed Exercise 2.47 Which of the following statements about subatomic particles are true?
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