research the physical and chemical properties of any two elements. Include Iodine and Acetone -- density...
research the physical and chemical properties of any two elements. Include
Iodine and Acetone
-- density
-- boiling point
-- melting point
-- conductivity
-- compounds containing the element found in nature (minerals)
-- common chemical reactions
-- Describe two uses for iodine elements.
Homework Answers
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research the physical and chemical properties of any two
elements. Include
Iodine and Acetone
-- density...
Record the physical properties of all the reagents and products that are relevant to the experiments,...
Record the physical properties of all the reagents and products that are relevant to the experiments, e.g. solubility, density, boiling point, melting point, molecular weight, color, state, etc. ALWAYS include the units, where applicable. Include the chemical formula, and hand-draw the structure of each of the compounds below: Water Mecl2 Ethanol Hcl Magnesium sulfate Naoh Caffeine Aspirin Acetaminophen
TRUE-FALSE QUESTIONS (2 points each) 22. Current chemical theory strongly suggests that all naturally occurring elements have been The most common (abundant) element in the universe is Common phy...
TRUE-FALSE QUESTIONS (2 points each) 22. Current chemical theory strongly suggests that all naturally occurring elements have been The most common (abundant) element in the universe is Common physical properties for a substance include color, melting point, boiling po 24. flammability and hardness. lonic bonds result from the sharing of one or more pairs of electrons. 26, The elements gold, silver and antimony all have chemical symbols which start with the 27 letter A Once a coordinate covalent bond is...
Exercise 1 - Questions 1. Define physical and chemical properties and give at least 3 examples...
Exercise 1 - Questions
1. Define physical and chemical properties and give at
least 3 examples of each type of property.
2. Which substances in Data Table 1 have melting points
below room temperature? Are these substances more likely to be
ionic or molecular compounds based on melting point alone?
Explain.
3. Which substances in Data Table 1 have melting points
above room temperature? Are these substances more likely to be
ionic or molecular compounds based on melting point alone?...
38 Report Sheet . Identification of Substances by Physical Properties 8. When water and bromoform are...
38 Report Sheet . Identification of Substances by Physical Properties 8. When water and bromoform are (See Table 3.1.) and bromoform are mixed, two layers form. Is the bottom layer water or bromoform? Sunce bromo form is more dense than a e botton layer is of brolno storm so the bottone s e 9. What solvent would you use to determine the density of zinc chloride Ca loupe o. Antoa e gо да се с о с will not dessous...
NGLES FOR ANY POLYGON-180 (N-2 IN- Name: Which of the follwing is used for chemical symbols...
NGLES FOR ANY POLYGON-180 (N-2 IN- Name: Which of the follwing is used for chemical symbols today? d. numbers 44. С. letters 一 a· drawings b. icons 45. The chemical formula of a compo and does NOT indicate the ー identity of the elements in the compound a. b. how elements are joined in the compound c. the composition of the compound d. relative proportions of the elements in the compound 46. Which substance has a chemical symbol that is...
b. What are its units? Is Density, extensive or intensive? C. 23. (True/ False) a) Physical...
b. What are its units? Is Density, extensive or intensive? C. 23. (True/ False) a) Physical Properties include color, melting point, solubility, and physical state at a specified temperature. (True/ False) b) Density= mass/weight. (True/ False) c) Extensive properties, such as mass and volume, depend on the size of the matter sample. (True/False) d) Density is not one of the physical properties of matter. (True/ False) 24. A weather balloon is inflated to a volume of 2.2 x 10 L...
5) Iodine is a better leaving group than bromine. But iodine is a better nucleophile than bromine. Why is that? Introdu...
5) Iodine is a better leaving group than bromine. But iodine is
a better nucleophile than bromine. Why is that?
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by the nucleophile while the...
Data Table 1: Physical Properties of Copper and Copper Compounds State Species (s. aq) Color Name...
Data Table 1: Physical Properties of Copper and Copper Compounds State Species (s. aq) Color Name noun Copper Curou Copper, Cu (a penny) Copper, Cu (recovered, wet) Copper, Cu (recovered, dry) Cu(NO3)2 Cu(OH)2 Cuo Cuso Table 2: Mass of Copper Before and After Performing the Copper Cycle Mass of the penny before any reaction 2.u Mass of the penny after reacting with concentrated HNO (aq) 1.86 Mass of copper used (i.e., difference between the two previous masses) 0.54 Mass of...
Question 2 Salicylic acid, HC,H,0, is a chemical compound used in many facial cleansing products. Figure 2. Stru...
Question 2 Salicylic acid, HC,H,0, is a chemical compound used in many facial cleansing products. Figure 2. Structure of Salicylic Acid a) Identify the ionizable hydrogen (HA or Hg) with the correct pk НА lonizable Hydrogen pK, 2.97 HA 13.7 :91 3 19- 10 b) The solubility of salicylic acid in water is 0.210-96 HC,HsOs by mass. What is the pH of an aqueous solution of salicylic acid at saturation? (Assume the density of the solution is 1.00 g/mL). 2-U...
31) Which pair of elements would you espect to eshilbit thegraes similarity in their physical and...
31) Which pair of elements would you espect to eshilbit thegraes similarity in their physical and chemical properties? A) TL C) Se. Te D) In, Sb 32) How many electrons does the As-ion possess A) 2 B) 30 C)s D) 33 32) E) 36 33) Which of the following compounds would you expect to be lonich 33) B) NH3 C) LiBr D) H202 E) None of the above 34) The charge on the copper ion in the salt CuO is...
TRUE-FALSE QUESTIONS (2 points each) 22. Current chemical theory strongly suggests that all naturally occurring elements have been The most common (abundant) element in the universe is Common physical properties for a substance include color, melting point, boiling po 24. flammability and hardness. lonic bonds result from the sharing of one or more pairs of electrons. 26, The elements gold, silver and antimony all have chemical symbols which start with the 27 letter A Once a coordinate covalent bond is...
Exercise 1 - Questions
1. Define physical and chemical properties and give at
least 3 examples of each type of property.
2. Which substances in Data Table 1 have melting points
below room temperature? Are these substances more likely to be
ionic or molecular compounds based on melting point alone?
Explain.
3. Which substances in Data Table 1 have melting points
above room temperature? Are these substances more likely to be
ionic or molecular compounds based on melting point alone?...
38 Report Sheet . Identification of Substances by Physical Properties 8. When water and bromoform are (See Table 3.1.) and bromoform are mixed, two layers form. Is the bottom layer water or bromoform? Sunce bromo form is more dense than a e botton layer is of brolno storm so the bottone s e 9. What solvent would you use to determine the density of zinc chloride Ca loupe o. Antoa e gо да се с о с will not dessous...
NGLES FOR ANY POLYGON-180 (N-2 IN- Name: Which of the follwing is used for chemical symbols today? d. numbers 44. С. letters 一 a· drawings b. icons 45. The chemical formula of a compo and does NOT indicate the ー identity of the elements in the compound a. b. how elements are joined in the compound c. the composition of the compound d. relative proportions of the elements in the compound 46. Which substance has a chemical symbol that is...
b. What are its units? Is Density, extensive or intensive? C. 23. (True/ False) a) Physical Properties include color, melting point, solubility, and physical state at a specified temperature. (True/ False) b) Density= mass/weight. (True/ False) c) Extensive properties, such as mass and volume, depend on the size of the matter sample. (True/False) d) Density is not one of the physical properties of matter. (True/ False) 24. A weather balloon is inflated to a volume of 2.2 x 10 L...
5) Iodine is a better leaving group than bromine. But iodine is
a better nucleophile than bromine. Why is that?
Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by the nucleophile while the...
Data Table 1: Physical Properties of Copper and Copper Compounds State Species (s. aq) Color Name noun Copper Curou Copper, Cu (a penny) Copper, Cu (recovered, wet) Copper, Cu (recovered, dry) Cu(NO3)2 Cu(OH)2 Cuo Cuso Table 2: Mass of Copper Before and After Performing the Copper Cycle Mass of the penny before any reaction 2.u Mass of the penny after reacting with concentrated HNO (aq) 1.86 Mass of copper used (i.e., difference between the two previous masses) 0.54 Mass of...
Question 2 Salicylic acid, HC,H,0, is a chemical compound used in many facial cleansing products. Figure 2. Structure of Salicylic Acid a) Identify the ionizable hydrogen (HA or Hg) with the correct pk НА lonizable Hydrogen pK, 2.97 HA 13.7 :91 3 19- 10 b) The solubility of salicylic acid in water is 0.210-96 HC,HsOs by mass. What is the pH of an aqueous solution of salicylic acid at saturation? (Assume the density of the solution is 1.00 g/mL). 2-U...
31) Which pair of elements would you espect to eshilbit thegraes similarity in their physical and chemical properties? A) TL C) Se. Te D) In, Sb 32) How many electrons does the As-ion possess A) 2 B) 30 C)s D) 33 32) E) 36 33) Which of the following compounds would you expect to be lonich 33) B) NH3 C) LiBr D) H202 E) None of the above 34) The charge on the copper ion in the salt CuO is...
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