In the experiment of Periodic Relationships, you observed that potassium reacted more violently with water than...
In the experiment of Periodic Relationships, you observed that potassium reacted more violently with water than sodium and sodium reacted more violently with water than lithium. Explain this reactivity in terms of the electronic structure of the atoms.
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In the experiment of Periodic Relationships, you observed that
potassium reacted more violently with water than...
Reactions observed in a lab were Magnesium metal + hydrochloric acid, Aluminium + Hydrochloric acid, and...
Reactions observed in a lab were Magnesium metal + hydrochloric
acid, Aluminium + Hydrochloric acid, and sulfur + Hydrochloric
acid.
One question states, if there is a correlation between
reactivity of the elements tested and their position in the
periodic table, the answer is yes.
The photo consists of questions that follow this idea.
What happens to the reactivity as you go move left to right across the periodic table? Explain in terms of atomic size and ionization potential. What...
1. Active metals reacting with water A. and B. Sodium and Potassium. Describe the reactions which...
1. Active metals reacting with water A. and B. Sodium and Potassium. Describe the reactions which you observed. What differences, if any, did you notice? Soolium:exPlosion fire occurned -exothrmic Potassium Fire no explosion -exother m Write a balanced chemical equation for each reaction. Sodium and water: Potassium and water: C and D. Magnesium and Calcium. Describe the reactions which you observed. Which m reacted more readily with water? How do you know? Calium, because it turned the saluhion pinl ulded...
POST LAB QUESTIONS. 1. If you used more water in your calorimeter, would the observed temperature...
POST LAB QUESTIONS. 1. If you used more water in your calorimeter, would the observed temperature change upon the addition of the hot solid object be larger or smaller than the temperature change you observed? Explain. 2. Your instructor handed you a 1-L sample of a liquid and asked you to determine its specific heat. How would you determine the specific heat of the liquid using the equipment in this lab? 3. What effect would not covering the calorimeter cup...
please help with these questions thank you ! In your experiment you were excpected to observe...
please help with these questions thank you !
In your experiment you were excpected to observe patterns of reactivity 1) The metal that reacted the most aggressively with water was (Ca, K, Na or Mg). Na The FORMULA for the gas produced when that metal reacted with water was The remaining solution was bsi (neutral, acidic, basic). 0.5 As stated in the lab manual, using your observations you could organize those four metals in order of reactivity. That order should...
HUIUJ KV2-17 Page 9 of 10 2. In this experiment you observed the mass decrease upon...
HUIUJ KV2-17 Page 9 of 10 2. In this experiment you observed the mass decrease upon heating the sample, Balance the following chemical equations and predict if the mass of the sample would increase or decrease (circle your prediction). Increase Decrease Mga + 026) HgO Co + 0218 Ca(OH) 268 Increase Decrease MgO Hgo + 0219 CO216 CaO + H20 Increase Decrease Increase Decrease 3. For 2c above what mass would you predict if 0.245 grams of carbon was reacted...
State a balanced equation for the reaction of sodium with water. Include state symbols With reference...
State a balanced equation for the reaction of sodium with water. Include state symbols With reference to electronic arrangements, suggest why the reaction between rubidium and water is more vigorous than that between sodium and water. Describe and explain what you will see if chlorine gas is bubbled through a solution of potassium iodide. fluoride. Explain why the melting points of the elements decrease down group l and increase down group?
Pre-Lab Questions 1. Define each of the following terms: a. Oxidation: EXPERIMENT 5 b. Reduction: c....
Pre-Lab Questions 1. Define each of the following terms: a. Oxidation: EXPERIMENT 5 b. Reduction: c. Redox reaction: d. Activity: 2. In the following reaction identify the substance that is oxidized and the substance that is reduced. Which metal is more active? 2Al(s) + 3Cu(aq) + 2Al(aq) + 3Cu(s) Oxidized Reduced = More active = 3. Why is it necessary to clean the surfaces of the metal samples before testing them in the metal ion solutions? 4. You will not...
composition of potassium chlorate questions and problems REPORT FOR EXPERIMENT 9 (continued) B. Qualitative Examination of...
composition of potassium chlorate questions and problems
REPORT FOR EXPERIMENT 9 (continued) B. Qualitative Examination of Residue 1. Record what you observed when silver nitrate was added to the following: (a) Potassium chloride solution (b) Potassium chlorate solution (c) Residue solution 2. (a) What evidence did you observe that would lead you to believe that the residue was potassium chloride? (b) What would happen if you added silver nitrate to a solution of sodium chloride? Explain your answer. e) Did...
Considering the trends in ionization energies, would you expect sodium or potassium to be more reactive?...
Considering the trends in ionization energies, would you expect sodium or potassium to be more reactive? Explain. Considering the trends in atomic radii, would you expect cesium or radon to have the larger radius? Explain. Compare the ionization energies of sodium and rubidium and then compare the electron affinities of chlorine and iodine. Which of the following chemical combinations of the elements would be the most exothermic - Na and Cl, Na and I, Rb and Cl, or Rb and...
Experiment: Passerini Reaction t-butyl isocyanide + benzaldehyde + benzoic acid were reacted to form 2-(tert-butylamino)-2-oxo-1-phenylethyl benzoate....
Experiment: Passerini Reaction t-butyl isocyanide + benzaldehyde + benzoic acid were reacted to form 2-(tert-butylamino)-2-oxo-1-phenylethyl benzoate. Water was used as the medium for the reaction, allowing for faster reaction times and higher yields (is an example of green chemistry technique, since no organic solvents are involved in the synthesis of the reaction itself). QUESTIONS: 1. Consider the molecular structure of the Passerini Product. In light of the composition of the compound, explain the observations you made regarding its behavior upon...
Reactions observed in a lab were Magnesium metal + hydrochloric
acid, Aluminium + Hydrochloric acid, and sulfur + Hydrochloric
acid.
One question states, if there is a correlation between
reactivity of the elements tested and their position in the
periodic table, the answer is yes.
The photo consists of questions that follow this idea.
What happens to the reactivity as you go move left to right across the periodic table? Explain in terms of atomic size and ionization potential. What...
1. Active metals reacting with water A. and B. Sodium and Potassium. Describe the reactions which you observed. What differences, if any, did you notice? Soolium:exPlosion fire occurned -exothrmic Potassium Fire no explosion -exother m Write a balanced chemical equation for each reaction. Sodium and water: Potassium and water: C and D. Magnesium and Calcium. Describe the reactions which you observed. Which m reacted more readily with water? How do you know? Calium, because it turned the saluhion pinl ulded...
POST LAB QUESTIONS. 1. If you used more water in your calorimeter, would the observed temperature change upon the addition of the hot solid object be larger or smaller than the temperature change you observed? Explain. 2. Your instructor handed you a 1-L sample of a liquid and asked you to determine its specific heat. How would you determine the specific heat of the liquid using the equipment in this lab? 3. What effect would not covering the calorimeter cup...
please help with these questions thank you !
In your experiment you were excpected to observe patterns of reactivity 1) The metal that reacted the most aggressively with water was (Ca, K, Na or Mg). Na The FORMULA for the gas produced when that metal reacted with water was The remaining solution was bsi (neutral, acidic, basic). 0.5 As stated in the lab manual, using your observations you could organize those four metals in order of reactivity. That order should...
HUIUJ KV2-17 Page 9 of 10 2. In this experiment you observed the mass decrease upon heating the sample, Balance the following chemical equations and predict if the mass of the sample would increase or decrease (circle your prediction). Increase Decrease Mga + 026) HgO Co + 0218 Ca(OH) 268 Increase Decrease MgO Hgo + 0219 CO216 CaO + H20 Increase Decrease Increase Decrease 3. For 2c above what mass would you predict if 0.245 grams of carbon was reacted...
State a balanced equation for the reaction of sodium with water. Include state symbols With reference to electronic arrangements, suggest why the reaction between rubidium and water is more vigorous than that between sodium and water. Describe and explain what you will see if chlorine gas is bubbled through a solution of potassium iodide. fluoride. Explain why the melting points of the elements decrease down group l and increase down group?
Pre-Lab Questions 1. Define each of the following terms: a. Oxidation: EXPERIMENT 5 b. Reduction: c. Redox reaction: d. Activity: 2. In the following reaction identify the substance that is oxidized and the substance that is reduced. Which metal is more active? 2Al(s) + 3Cu(aq) + 2Al(aq) + 3Cu(s) Oxidized Reduced = More active = 3. Why is it necessary to clean the surfaces of the metal samples before testing them in the metal ion solutions? 4. You will not...
composition of potassium chlorate questions and problems
REPORT FOR EXPERIMENT 9 (continued) B. Qualitative Examination of Residue 1. Record what you observed when silver nitrate was added to the following: (a) Potassium chloride solution (b) Potassium chlorate solution (c) Residue solution 2. (a) What evidence did you observe that would lead you to believe that the residue was potassium chloride? (b) What would happen if you added silver nitrate to a solution of sodium chloride? Explain your answer. e) Did...
Considering the trends in ionization energies, would you expect sodium or potassium to be more reactive? Explain. Considering the trends in atomic radii, would you expect cesium or radon to have the larger radius? Explain. Compare the ionization energies of sodium and rubidium and then compare the electron affinities of chlorine and iodine. Which of the following chemical combinations of the elements would be the most exothermic - Na and Cl, Na and I, Rb and Cl, or Rb and...
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