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6. Which is not a characteristic property of acids? A) reacts with CO2(g) to form carbonates...
Acids and Bases 1) Which of the following is a general property of a basic solution?...
Acids and Bases 1) Which of the following is a general property of a basic solution? a. feels slippery b pH less than 7 c. tastes sour d. turns litmus paper red e. none of the above 2) If a vinegar sample has a pH of 5, the solution is which of the following: a. strongly acidic b. weakly acidic c neutral d. weakly basic e. strongly basic 3) Which of the following is a weak Arrhenius acid a. HNO3...
1.Acidic materials can be identified by which of the following test outcomes: a. They react...
1.Acidic materials can be identified by which of the following test outcomes: a. They react with metals. b. They feel slippery. c. They may taste bitter. d. They turn litmus paper red. e. All of the above. 2. Which of the following would you expect to turn litmus paper blue: a. chalk b. baking soda c. oven cleaner d. all of the above e. none of the above 3. Which of the following statements about acidic water...
10. What is a chemical reaction? A) when a liquid undergoes a phase change and produces...
10. What is a chemical reaction? A) when a liquid undergoes a phase change and produces a solid B) when a new element is formed by rearranging nucleons C) when two solids mix together to form a heterogeneous mixture D) when two liquids mix to form a homogeneous mixture E) when one or more new compounds are formed by rearranging atoms 17. Identify the reaction type: Al2O3(s) → O2(g) + Al(s) A) combustion B) combination C) decomposition D) single replacement...
The four main groups of biological molecules are? DNA, ATP, H20 and CO2 nucleotides, amino acids,...
The four main groups of biological molecules are? DNA, ATP, H20 and CO2 nucleotides, amino acids, monosacharides and fatty acids 01. a. b. c. DNA, RNA, Starch and phospholipids nucleic acids, proteins, carbohydrates and fats d. 02. Large biomolecules are polymers of smaller subunits generally referred to as? a. monomers b. dimers c. monosaccharides d. bases 03. Which of the following properties apply to lipids? a. b. c. d. saturated versions are likely to be solid at room temperature some...
181-740 30219 UNIT 6. ACIDS AND BASES; CHEMICAL EQUILIBRIUM: OXIDAI ION A -3 Consider a 1.6...
181-740 30219 UNIT 6. ACIDS AND BASES; CHEMICAL EQUILIBRIUM: OXIDAI ION A -3 Consider a 1.6 x 10 M solution of HNOg. Which of the following statements is NOT true Select one: a. This solution could dissolve metal. b. This solution could neutralize a base. c. This solution would turn litmus to red d. This solution has a pH of 11.20 e. None of these
Cis)CO2 () 2 cO(g) ΔΗ + a. Shifts to the right b. Shifts to the left...
Cis)CO2 () 2 cO(g) ΔΗ + a. Shifts to the right b. Shifts to the left c. No effect d. None of the above 6. Arrhenius postu lated that acids produce hydrogen ion (H) in aqueous solutions, whereas bases produce hydroxide ion (OH) a. True b. False 7. Calculate the pH value for a solution in which the hydrogen concentration is [H']= 1.0 x 10 M 8. Calculate the pH value for a solution in which the hydroxyl ( OH)...
6. [Le Châtelier's Principle] Consider the following system at equilibrium: CH&(g)+2H2O(g) CO2(g)+ 4H2(g...
6. [Le Châtelier's Principle] Consider the following system at equilibrium: CH&(g)+2H2O(g) CO2(g)+ 4H2(g) What change shown below will cause the equilibrium to shift to form more H2? A. increase [H2] B. decrease [H2O] C. decrease the volume of the reaction vessel D. decrease [CH4] E. decrease [CO2) b) (c) (e) x Y Reaction coordinate x+ Y 2 2. Refer to the Reaction Energy Diagram above for the following question. Which statement is TRUE regarding the diagram above? A. Letter (c)...
12 only please D) 1 12) A 14.01 g sample of N2 reacts with 3.02 g...
12 only please
D) 1 12) A 14.01 g sample of N2 reacts with 3.02 g of H2 to form ammonia (NH3). If ammonia is the only product, what mass of ammonia is formed? A) 17.03 g B) 23.078 C) 1.108 D) 3.02 g E) 14.01 g E) 2 ..). If ammonia is the only 12) 13) Why are the halogens among the most active nonmetals? A) They all have smaller diameters the B) Their valen
VULTIPLE CHOICE points each) 1) What is TRUE about the 20mino acids used to form proteins?...
VULTIPLE CHOICE points each) 1) What is TRUE about the 20mino acids used to form proteins? a) They all are in the "L"configuration b) They are all in the form meaning the amino group is opposite the acid group e) They are all chiral. - They are all "Tertiary with four different groups attached They are all secondary with the aming group on the carbon secondary to the acid group 2) Fibrinoge is a protein involved in blood clotting. It's...
Exp. 12 Name: ONLINE POSTLAB QUESTIONS Type: MT Title: Litmus 1 1) For 6 points, match...
Exp. 12 Name: ONLINE POSTLAB QUESTIONS Type: MT Title: Litmus 1 1) For 6 points, match (identify) whether the following substances are acidic basic or neutral. a. Sugar = b. Ammonia = c. Vinegar = d, NaHCO3 = e. NaCl = f. Drain Cleaner = Type: S Title: Litmus 2 2) For 1 point, true or false. It is possible to get two no change results for dunking Red Litmus Paper and Blue Litmus Paper into a solution. a) True...
10. What is a chemical reaction? A) when a liquid undergoes a phase change and produces a solid B) when a new element is formed by rearranging nucleons C) when two solids mix together to form a heterogeneous mixture D) when two liquids mix to form a homogeneous mixture E) when one or more new compounds are formed by rearranging atoms 17. Identify the reaction type: Al2O3(s) → O2(g) + Al(s) A) combustion B) combination C) decomposition D) single replacement...
The four main groups of biological molecules are? DNA, ATP, H20 and CO2 nucleotides, amino acids, monosacharides and fatty acids 01. a. b. c. DNA, RNA, Starch and phospholipids nucleic acids, proteins, carbohydrates and fats d. 02. Large biomolecules are polymers of smaller subunits generally referred to as? a. monomers b. dimers c. monosaccharides d. bases 03. Which of the following properties apply to lipids? a. b. c. d. saturated versions are likely to be solid at room temperature some...
181-740 30219 UNIT 6. ACIDS AND BASES; CHEMICAL EQUILIBRIUM: OXIDAI ION A -3 Consider a 1.6 x 10 M solution of HNOg. Which of the following statements is NOT true Select one: a. This solution could dissolve metal. b. This solution could neutralize a base. c. This solution would turn litmus to red d. This solution has a pH of 11.20 e. None of these
Cis)CO2 () 2 cO(g) ΔΗ + a. Shifts to the right b. Shifts to the left c. No effect d. None of the above 6. Arrhenius postu lated that acids produce hydrogen ion (H) in aqueous solutions, whereas bases produce hydroxide ion (OH) a. True b. False 7. Calculate the pH value for a solution in which the hydrogen concentration is [H']= 1.0 x 10 M 8. Calculate the pH value for a solution in which the hydroxyl ( OH)...
6. [Le Châtelier's Principle] Consider the following system at equilibrium: CH&(g)+2H2O(g) CO2(g)+ 4H2(g) What change shown below will cause the equilibrium to shift to form more H2? A. increase [H2] B. decrease [H2O] C. decrease the volume of the reaction vessel D. decrease [CH4] E. decrease [CO2) b) (c) (e) x Y Reaction coordinate x+ Y 2 2. Refer to the Reaction Energy Diagram above for the following question. Which statement is TRUE regarding the diagram above? A. Letter (c)...
12 only please
D) 1 12) A 14.01 g sample of N2 reacts with 3.02 g of H2 to form ammonia (NH3). If ammonia is the only product, what mass of ammonia is formed? A) 17.03 g B) 23.078 C) 1.108 D) 3.02 g E) 14.01 g E) 2 ..). If ammonia is the only 12) 13) Why are the halogens among the most active nonmetals? A) They all have smaller diameters the B) Their valen
VULTIPLE CHOICE points each) 1) What is TRUE about the 20mino acids used to form proteins? a) They all are in the "L"configuration b) They are all in the form meaning the amino group is opposite the acid group e) They are all chiral. - They are all "Tertiary with four different groups attached They are all secondary with the aming group on the carbon secondary to the acid group 2) Fibrinoge is a protein involved in blood clotting. It's...
Exp. 12 Name: ONLINE POSTLAB QUESTIONS Type: MT Title: Litmus 1 1) For 6 points, match (identify) whether the following substances are acidic basic or neutral. a. Sugar = b. Ammonia = c. Vinegar = d, NaHCO3 = e. NaCl = f. Drain Cleaner = Type: S Title: Litmus 2 2) For 1 point, true or false. It is possible to get two no change results for dunking Red Litmus Paper and Blue Litmus Paper into a solution. a) True...
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