Chemistry concepts and calculations
117302 questions • Page 2016 / 2347
Which it not a tenant of green chemistry? Conduct reactions at room temperature
Which it not a tenant of green chemistry? Conduct reactions at room temperature and standard pressure Reactions should generate substances that posse little or no toxicity to huma…
Which layer in the seperatory funnel contains the 9-fluorence aqueous or organic
Which layer in the seperatory funnel contains the 9-fluorence aqueous or organic layer? Is the organic layer the top or bottom layer in the seperatory funnel during the extraction…
Which list includes three types of chemical reactions? A) decomposition, single
Which list includes three types of chemical reactions? A) decomposition, single replacement, and solidification B) decomposition, single replacement, and double replacement C) sol…
Which lowers the freezing point of 2.0 kg of water more, 2.0 mol NaOH or 2.0 mol
Which lowers the freezing point of 2.0 kg of water more, 2.0 mol NaOH or 2.0 mol Ba(OH)2? (Both compounds are strong electrolytes and completely dissociate into ions when dissolve…
Which mass of helium contains the same number of atoms as 5.0 grams of Krypton?
Which mass of helium contains the same number of atoms as 5.0 grams of Krypton? A. 0.24 grams B. 5.0 grams C.3.59 x 10^22 grams D.1.45 x 10^23 grams * please explain how you calcu…
Which material will reach the highest temperature upon absorbing the same amount
Which material will reach the highest temperature upon absorbing the same amount of heat? Assume the same mass and initial temperature for all materials. C_Au = 0.128 J/g degree C…
Which mechanism for species A reacting to form species D matches the graph? (A)
Which mechanism for species A reacting to form species D matches the graph? (A) A rightarrow B fast step B rightarrow C slow step C rightarrow D fast step (B) A rightarrow B slow …
Which mechanism is plausible for the reaction A + 2B ---> C + 2D, that has an ex
Which mechanism is plausible for the reaction A + 2B ---> C + 2D, that has an experimentally determined rate law of: rate = k [A][B]? A. (step 1) A + B ----> …
Which mechanisms is more appropriate for this Friedel-Crafts Reaction: deviated
Which mechanisms is more appropriate for this Friedel-Crafts Reaction: deviated from the order (if it did deviate). When reaction mechanisms are discussed, students often forget t…
Which mechanisms is more appropriate for this Friedel-Crafts Reaction: deviated
Which mechanisms is more appropriate for this Friedel-Crafts Reaction: deviated from the order (if it did deviate). When reaction mechanisms are discussed, students often forget t…
Which member of each of these pairs of substances would you expect to have a hig
Which member of each of these pairs of substances would you expect to have a higher boiling point: (a)O_2 or N_2: (b) SO_2 or CO_2, (c) HF or HI? (d) pentane or 2-methyl-butane? e…
Which member of each pair has the greater polarizability-i.e. which member of ea
Which member of each pair has the greater polarizability-i.e. which member of each pair will most form stronger dispersion forces? Briefly explain your reasoning. Ca2+ or Ca CH_3C…
Which member of the following pairs has the stronger intermolecular dispersion f
Which member of the following pairs has the stronger intermolecular dispersion forces, and explain why? Br2 or O2 CH3CH2SH or CH3CH2CH2SH CH2CH2CH2CL or (CH3)CHCl Which member of …
Which member of the following pairs has the stronger intermolecular dispersion f
Which member of the following pairs has the stronger intermolecular dispersion forces, and explain why? Br2 or O2 CH3CH2SH or CH3CH2CH2SH CH2CH2CH2CL or (CH3)CHCl Which member of …
Which metal can react with an acid? Cu, Ag, Al, Au (Answer is Al) Can someone ex
Which metal can react with an acid? Cu, Ag, Al, Au (Answer is Al) Can someone explain why? Which of the following is the most likely to act as a Lewis Acid? PH3, AlCl3, HCN, BeO2 …
Which metal will have a more explosive reaction with water one with a high ioniz
Which metal will have a more explosive reaction with water one with a high ionization energy or one with a love ionization energy? Why? You have decided to investigate the ionizat…
Which method is more accurate? Explain your answer. 20.00mL of heavy water (D20
Which method is more accurate? Explain your answer. 20.00mL of heavy water (D20 where D is a hydrogen with a neutron in its nucleus) at 20 degreeree C was pipette into a 32.234 g …
Which method is more accurate? Explain your answer. 20.00mL of heavy water (D20
Which method is more accurate? Explain your answer. 20.00mL of heavy water (D20 where D is a hydrogen with a neutron in its nucleus) at 20 degreeree C was pipette into a 32.234 g …
Which methods of the Account class cannot be seen or called from the AccountTest
Which methods of the Account class cannot be seen or called from the AccountTester class? (Check all that apply.) Question 23 options: showMessage (line 94 of Listing 1). displayV…
Which methods of the AccountTester class are using counter-controlled repetition
Which methods of the AccountTester class are using counter-controlled repetition statements? (Check all that apply.) Question 18 options: exerciseTransactions (line 45 of Listing …
Which methods of the AccountTester class use loops to validate the user\'s input
Which methods of the AccountTester class use loops to validate the user's input? (Check all that apply.) Question 20 options: exerciseTransactions (line 45 of Listing 2). exercise…
Which molecular shape/polarity description is correct forPCl3? (What is the righ
Which molecular shape/polarity description is correct forPCl3? (What is the right answer) A) trigonal planar; polar B) trigonal planar; nonpolar C) trigonal pyrimidal; polar D) tr…
Which molecule Shown Below has MORE Molecular Attraction due to Hydrogen bonding
Which molecule Shown Below has MORE Molecular Attraction due to Hydrogen bonding between other molecules of itself? H_2O CH_4 C_6 H_14 (straight chain) Given the general chemical …
Which molecule below are archival? only II II and III III and IV I, III and IV w
Which molecule below are archival? only II II and III III and IV I, III and IV which one of the following group has the highest rank as assigned by the Gahn-Ingold- stereogenic ca…
Which molecule below has a significant band in the IR at 2220 cm^-1 (medium)? (C
Which molecule below has a significant band in the IR at 2220 cm^-1 (medium)? (CH_3)_3N CH_3CH_2CH_2OH CH_3CO_2CH_2CH_3 CH_3C CCH_2CH_3 CH_3CH_2H(NH_2)CH_3 Which of the following …
Which molecule contains a triple bond F2 / O3 / HCN / H2CO Which of the followin
Which molecule contains a triple bond F2 / O3 / HCN / H2CO Which of the following is not a valence bond concept? the greater the overlap between the orbitals on two atoms, thestro…
Which molecule do you expect to have the lowest molar entropy at 300 K? Circle t
Which molecule do you expect to have the lowest molar entropy at 300 K? Circle the correct answer and briefly explain your answer. CHF_3(g) CHCl_3(g) CHBr_3(g) CHI_3(g) Consider t…
Which molecule do you expect to have the lowest molar entropy at 300 K? Circle t
Which molecule do you expect to have the lowest molar entropy at 300 K? Circle the correct answer and briefly explain your answer. CHF_3(g) CHCI_3(g) CHBr_3(g) CHI_3(g) 2. Conside…
Which molecule in each pair has the greater dipole moment? A) O3 or SO2 1. SO2>O
Which molecule in each pair has the greater dipole moment? A) O3 or SO2 1. SO2>O3 or O3>SO2 B)HBr or HCL 2. HBr >HCl or HCl >HBr
Which molecule in each pair has the greater dipole moment? A) O3 or SO2 1. SO2>O
Which molecule in each pair has the greater dipole moment? A) O3 or SO2 1. SO2>O3 or O3>SO2 B)HBr or HCL 2. HBr >HCl or HCl >HBr
Which molecule in each pair has the greater dipole moment? A) O3 or SO2 1. SO2>O
Which molecule in each pair has the greater dipole moment? A) O3 or SO2 1. SO2>O3 or O3>SO2 B)HBr or HCL 2. HBr >HCl or HCl >HBr
Which molecule in the reaction below is the oxidizing agent? 2C-2H_6(g) + 7 O_2(
Which molecule in the reaction below is the oxidizing agent? 2C-2H_6(g) + 7 O_2(g) rightarrow 4 CO_2(g) + 6 H_2(g) a. C_2H_6 b. O_2 c. H_2O d. CO_2 e. None Write a balanced chemic…
Which molecule is identified with the correct molecular geometry? Question 14 op
Which molecule is identified with the correct molecular geometry? Question 14 options: A) NH3 tetrahedral B) BF3 see-saw C) IF5 octahedral D) SO2 bent E) PF4- square pyramid Which…
Which molecule is identified with the correct molecular geometry? Question 14 op
Which molecule is identified with the correct molecular geometry? Question 14 options: A) NH3 tetrahedral B) BF3 see-saw C) IF5 octahedral D) SO2 bent E) PF4- square pyramid Which…
Which molecule is polar? Question 18 options: A) NH 4 + B) PF 5 C) ClO 4 - D) PF
Which molecule is polar? Question 18 options: A) NH4+ B) PF5 C) ClO4- D) PF3 E) BeF2 please tell me why the answer is polar, I need to know, thanks. Which molecule is polar? Quest…
Which molecule is polar? Question 18 options: A) NH 4 + B) PF 5 C) ClO 4 - D) PF
Which molecule is polar? Question 18 options: A) NH4+ B) PF5 C) ClO4- D) PF3 E) BeF2 please tell me why the answer is polar, I need to know, thanks. Which molecule is polar? Quest…
Which molecule or compound below contains a pure covalent bond? Choose the bond
Which molecule or compound below contains a pure covalent bond? Choose the bond below that is the strongest List the number of sigma bonds and pi bonds in a triple bond. Use Lewis…
Which molecule or ion does not have trigonal pyramidal molecular geometry? PF_3
Which molecule or ion does not have trigonal pyramidal molecular geometry? PF_3 BF_3 AsF_3 NF_3 IO^-_3 Which of the following statements concerning liquids is incorrect? Non-volat…
Which molecule(s) can exhibit London forces? a) CH4 b) CHCl3 c) NF3 d) HF e) All
Which molecule(s) can exhibit London forces? a) CH4 b) CHCl3 c) NF3 d) HF e) All of the molecules above can exhibit London forces. Which molecule has the lowest surface tension? Q…
Which molecules only have temporary dipoles? Which molecules can H-bond with its
Which molecules only have temporary dipoles? Which molecules can H-bond with itself? (12 points) use the molecules below to answer questions 10-14: Bor -Br snCIz Brz Compound D Mo…
Which name is possible for a carboxylic acid? Question 32 options: Save Question
Which name is possible for a carboxylic acid? Question 32 options: Save Question 33 (1 point) Which compound is the most soluble in water? Question 33 options: Save Question 34 (1…
Which name provided is correct for the molecule shown? A. m-methoxyaniline B. p-
Which name provided is correct for the molecule shown? A. m-methoxyaniline B. p-aminomethoxybenzene C. m-nitroanisole D. 1,2-nitrosomethoxybenzene Which of the following best desc…
Which net ionic equation best represents the reaction that occurs when an aqueou
Which net ionic equation best represents the reaction that occurs when an aqueous solution of ammonium carbonate is mixed with tin aqueous solution of calcium acetate? (NH_4);CO_3…
Which nuclear equations is properly balanced? Uranium-234 undergoes spontaneous
Which nuclear equations is properly balanced? Uranium-234 undergoes spontaneous radioactive decay to give an alpha particle and a new nucleus, X. What is x? _90^230Th _90^230U _94…
Which nuclear equations is properly balanced? Uranium-234 undergoes spontaneous
Which nuclear equations is properly balanced? Uranium-234 undergoes spontaneous radioactive decay to give an alpha particle and a new nucleus, X. What is x? _90^230Th _90^230U _94…
Which object has the larger heat capacity? The heat capacity of the object A is
Which object has the larger heat capacity? The heat capacity of the object A is greater than the heat capacity of the object B. The heat capacity of the object B is greater than t…
Which object(s) should you use to perform all database updates? The ____________
Which object(s) should you use to perform all database updates? The ______________ property specifies the data source for a control in a form or report or for a field in a table o…
Which of CH 4 (g), C 2 H 2 (g), and CH 3 OH(l) provides the most energy per gram
Which of CH4(g), C2H2(g), and CH3OH(l) provides the most energy per gram upon combustion and which provides the least? CH4(g) + 2 O2(g) ? CO2(g) + 2 H2O(l) ?H? = -890 kJ 2 C2H2(g)…
Which of following chemical equations is an acid-base reaction? a. Ba(OH)_2 (aq)
Which of following chemical equations is an acid-base reaction? a. Ba(OH)_2 (aq) + K_2 SO_4 (aq) rightarrow BaSO_4 + 2 KOH (aq) b. 3 NaoH (aq) + AlCl_3 (aq) rightarrow Al(OH)_3 (s…
Which of following conditions must be met for a Claisen condensation to proceed
Which of following conditions must be met for a Claisen condensation to proceed with a reasonably yield? The starting ester cannot have any alpha protons The starting ester should…
Subject
Chemistry concepts and calculations
Use Browse or pick another subject.