Chemistry concepts and calculations

Which group of the periodic table is most likely described by questions 1-4? 1)

Which group of the periodic table is most likely described by questions 1-4? 1) These elements are very strong oxidizers. 2) These elements have a charge of +2 when forming ionic …

Which group on the periodic table contains the most reactive metals? What is the

Which group on the periodic table contains the most reactive metals? What is the trend in reactivity within this group? Which group on the periodic table contains the most reactiv…

Which groups among main group elements in the figure below have an odd number of

Which groups among main group elements in the figure below have an odd number of valence Please select all that apply. group 1 (red) group 2 (yellow) group 13 (dark green) group 1…

Which groups among main group elements in the figure below have an odd number of

Which groups among main group elements in the figure below have an odd number of valence Please select all that apply. group 1 (red) group 2 (yellow) group 13 (dark green) group 1…

Which has a higher boiling point? Cyclopentane or dimethylethanamine. Based on w

Which has a higher boiling point? Cyclopentane or dimethylethanamine. Based on which of the following criteria? A. One molecule can associate via dipole-dipoe interactions, and th…

Which has higher boiling point? Acetone or 3-heptanone?Based on which of the fol

Which has higher boiling point? Acetone or 3-heptanone?Based on which of the following criteria? A. One molecule can associate via dipole-dipoe interactions, and the other cannot.…

Which has higher boiling point? Hexanal or dipropyl ether?Based on which of the

Which has higher boiling point? Hexanal or dipropyl ether?Based on which of the following criteria? A. One molecule can associate via dipole-dipoe interactions, and the other cann…

Which has the highest boiling point? Ar Kr Xe Ne Which substance has the highest

Which has the highest boiling point? Ar Kr Xe Ne Which substance has the highest boiling point? CH_4 He HF Cl_2 Consider the phase diagram of a pure compound. Which statement appl…

Which has the larger radius, N^3- or P^3- ? Explain. (You may use a periodic tab

Which has the larger radius, N^3- or P^3- ? Explain. (You may use a periodic table.) Arrange the following in order of increasing ionic radius: F^-, Na^+, and N^3-. Explain this o…

Which has the most ionic character? which has the most conveyed in character? wh

Which has the most ionic character? which has the most conveyed in character? which to bonds have the same ionic character? OK 3 attempts left Check my work Be sure to answer all …

Which hydroxides are weak bases? KOH, NaOH KOH, Ba(OH)_2 Sr(OH)_2, KOH, NaOH, Ba

Which hydroxides are weak bases? KOH, NaOH KOH, Ba(OH)_2 Sr(OH)_2, KOH, NaOH, Ba(OH)_2 KOH, NaOH, Ba(OH)_2 None of these is a weak base. The net ionic equation for the reaction be…

Which if any, of the following processes have a Delta a > 0 under the specified

Which if any, of the following processes have a Delta a > 0 under the specified conditions? Consider the following reaction P. Use the information here to determine the Delta S…

Which image(s) in the figure represents a pure compound? A) images A. B. and C:

Which image(s) in the figure represents a pure compound? A) images A. B. and C: B) images C. D. and E; C) images A and B only: D) image A only. E) image B only. Use the solubility…

Which indicator of those you used would you expect to be useful in determining t

Which indicator of those you used would you expect to be useful in determining the pH of a 4.0 times 10^-4 M HCl solution? Why? From your pH measurements, calculate a K_a for each…

Which indicator would be the best to use for a titration between 0.30 M (CH 3 )

Which indicator would be the best to use for a titration between 0.30 M (CH3)2NH with 0.30 M HI? You will probably need to consult the appropriate table in the book. phenol red, c…

Which ion below has a noble gas electron configuration? Li^2+ Be^2+ B^2+ C^2+ N^

Which ion below has a noble gas electron configuration? Li^2+ Be^2+ B^2+ C^2+ N^2- Of the following, which gives correct order for atomic radius for Mg, Na, P, Si and Ar? Mg > …

Which ion has the largest radius? a. I^- b. Br^- c. F^- d. Ar^- e. Cl^- Which io

Which ion has the largest radius? a. I^- b. Br^- c. F^- d. Ar^- e. Cl^- Which ion has the largest radius? a. Mg^2+ b. Be^1+ c. Na^+ d. AP^+ e. Li^+ Arrange the following set of io…

Which ion has the smallest radius? (A) O^2- (B) Na^+ (C) Mg^2+ (D) F^- Which fac

Which ion has the smallest radius? (A) O^2- (B) Na^+ (C) Mg^2+ (D) F^- Which factor has the greatest effect on atomic radius as one moves from left to right across a row on the pe…

Which ion is most likely to exist, based upon rules we learned? A. Ne-1 B) P-3 C

Which ion is most likely to exist, based upon rules we learned? A. Ne-1 B) P-3 C) Na+2 D) H+2 E) N+3 16. Which of the following statements from Dalton's atomic theory atomic theor…

Which ion, K^+ or Cl^-, influences the solubility of KHT? Briefly explain. Suppo

Which ion, K^+ or Cl^-, influences the solubility of KHT? Briefly explain. Suppose this experiment were performed using NaBr-KBr solutions instead of the NaCl-KCl solutions. Would…

Which ionic compound is not soluble in water? Question 7 options: a) NaCl b) AgC

Which ionic compound is not soluble in water? Question 7 options: a) NaCl b) AgCl c) (NH4)2SO4 d) Ca(CH3CO2)2 Which ionic compound is soluble in water? Question 8 options: More th…

Which ionic compound would you expect to have the smallest lattice energy? A) Mg

Which ionic compound would you expect to have the smallest lattice energy? A) MgF2 B)MgCl2 C)MgBr2 D)MgI2 E)CaI2 Which of the following will require the greatest energy input to s…

Which ionization to method is best suited to the determination of tetraethyl-lea

Which ionization to method is best suited to the determination of tetraethyl-lead additives in gasoline by the GC-MS method and why? Describe how one can quickly identify the tetr…

Which is FALSE: During the oxidation of pyruvate through the PDH reaction and th

Which is FALSE: During the oxidation of pyruvate through the PDH reaction and the Krebs Cycle- Select one: a. three oxygen atoms and nine hydrogen atoms are added to the substrate…

Which is NOT a chemical property? A. rusting iron B. Stability of gold C. Shock

Which is NOT a chemical property? A. rusting iron B. Stability of gold C. Shock sensitivity of nitroglycerine D. Burning of gasoline E. Conductivity of electricity I know this is …

Which is NOT a feature of a colloidal suspension: Not easily filtered particles

Which is NOT a feature of a colloidal suspension: Not easily filtered particles can be visually distinguished Does not tend to settle scatters visible radiation How does an End po…

Which is NOT a property of buffers? Buffers resist changes in pH when acids or b

Which is NOT a property of buffers? Buffers resist changes in pH when acids or bases are added or when dilution occurs. Buffers are a mixture of weak acid and conjugate base. The …

Which is NOT considered a commonly used reagent for conversion of alcohols to al

Which is NOT considered a commonly used reagent for conversion of alcohols to alkyl halides? HCl PBr_3 CH_3OH SOCl_2 The reactions of alcohols have mainly to do with the following…

Which is NOT true of the flame atomic absorbance spectroscopy of iron? Question

Which is NOT true of the flame atomic absorbance spectroscopy of iron? Question 1 options: a) The iron atoms in the flame absorb some of the light emitted from the hollow-cathode …

Which is NOT true of the flame atomic absorbance spectroscopy of iron? Select on

Which is NOT true of the flame atomic absorbance spectroscopy of iron? Select one: The iron sample is aspirated into the flame, where the solvent evaporates and the iron analyte i…

Which is NOT true? Original answers only please A> Electrons will always go to t

Which is NOT true? Original answers only please A> Electrons will always go to their lowest possible energy state. Which statement about assigning electrons to orbitals in the …

Which is a balanced net ionic equation for the reaction of aqueous solutions of

Which is a balanced net ionic equation for the reaction of aqueous solutions of baking soda (NaHCO3) and acetic acid.                 HCO3 Which is a balanced net ionic equation f…

Which is a chemical property of chlorine? A) it boils at -34.6 degrees Celcius B

Which is a chemical property of chlorine? A) it boils at -34.6 degrees Celcius B) it has a sharp suffocating odor C) it is a yellowish green gas D) it combines with sodium to form…

Which is a net ionic equation for the neutralization reaction of a weak acid wit

Which is a net ionic equation for the neutralization reaction of a weak acid with a weak base? Which is a net ionic equation for the neutralization reaction of a weak acid with a …

Which is a polar aprotic solvent? D. HOCH2CH2CH2CH3 E. None of the choices are c

Which is a polar aprotic solvent? D. HOCH2CH2CH2CH3 E. None of the choices are correct A) D B) E C) A D) B E) C 16. How are the molecules in the following pair related? A) They ar…

Which is a precipitation reaction? 2Cr + 6HNO_3 (aq) rightarrow 2Cr(NO_3)_3 (aq)

Which is a precipitation reaction? 2Cr + 6HNO_3 (aq) rightarrow 2Cr(NO_3)_3 (aq) + 3H_2 H_3PO_4 (aq) + 3KOH(aq) rightarrow K_3PO_4 (aq) + 3H_2O 3Ba(NO_3)_2 (aq) + 2Na_3PO_4 (aq) r…

Which is a precipitation reaction? 2Cr(s) + 6HNO_3 (aq) rightarrow 2Cr(NO_3)_3 (

Which is a precipitation reaction? 2Cr(s) + 6HNO_3 (aq) rightarrow 2Cr(NO_3)_3 (aq) + 3H_2(g) H_3PO_4 (aq) + 3KOH(aq) rightarrow K_3PO_4 (aq) + 3H_2O(l) 3Ba(NO_3)_2 (aq) + 2Na_3PO…

Which is a strategy for fighting corrosion? Good design Coatings Inhibitors Moni

Which is a strategy for fighting corrosion? Good design Coatings Inhibitors Monitoring All of the above If ore has a 1060 plain carbon steel, the carbon content is 1.06 wt% 0.60 w…

Which is a true statement about analytical equipment? a. A volumetric flask is c

Which is a true statement about analytical equipment? a. A volumetric flask is calibrated to contain b. A Teflon stopcock should be greased regularly c. A 50 ml_ glass buret shoul…

Which is a true statement about analytical equipment? a. A volumetric flask is c

Which is a true statement about analytical equipment? a. A volumetric flask is calibrated to contain b. A Teflon stopcock should be greased regularly c. A 50 ml_ glass buret shoul…

Which is an example of a synthetic polymer? (a) Cellulose (b) DNA (c) Polyester

Which is an example of a synthetic polymer? (a) Cellulose (b) DNA (c) Polyester (d) Starch (e) Hemoglobin Choose the most correct definition. (a) Organic compounds arc based on ca…

Which is better for you: a drug that is a natural product or one that is synthet

Which is better for you: a drug that is a natural product or one that is synthetic? Drugs extracted from natural products are invariably better for you. Synthetic products are gen…

Which is correct. 1)Specific heat of a substance varies with temperature variati

Which is correct. 1)Specific heat of a substance varies with temperature variation 2)bond energy is measured by measuring the bond of standard enthalpy of formation reaction 3)cof…

Which is more likely to cause damage to a wooden floor. A1068-N (240 lb) basketb

Which is more likely to cause damage to a wooden floor. A1068-N (240 lb) basketball player in athletic shoes (floor contactarea = 420cm2 ) or a 534-N (120-lb) sportsreporter stand…

Which is more soluble in water, 3-bromocyclopropene or bromocyclopropane? Which

Which is more soluble in water, 3-bromocyclopropene or bromocyclopropane? Which is more soluble in water, 3-bromocyclopropene or bromocyclopropane? 3-bromocyclopropene bromocyclop…

Which is more stable, cis-1,3-dimethylcylohexane or trans-1,3-dimethylcyclohexan

Which is more stable, cis-1,3-dimethylcylohexane or trans-1,3-dimethylcyclohexane? A) stabilities of cis, trans stereoisomers cannot be compared B) cis-1,3-dimethylcyclohexane C) …

Which is most soluble in hexane (C6H14), benzene (C6H6) or ethanol (C2H5OH)? -Be

Which is most soluble in hexane (C6H14), benzene (C6H6) or ethanol (C2H5OH)? -Benzene because it can form London forces with hexane molecules. -Benzene because it can form dipole-…

Which is most soluble in hexane (C6H14), benzene (C6H6) or ethanol (C2H5OH)? Ben

Which is most soluble in hexane (C6H14), benzene (C6H6) or ethanol (C2H5OH)? Benzene because it can form London forces with hexane molecules   Benzene because it can form dipole-d…

Which is necessary for a chemical reaction to occur? Reactant molecules must col

Which is necessary for a chemical reaction to occur? Reactant molecules must collide and must not have a certain amount of energy Reactant molecules must collide and these collisi…

Which is not a function of proteins? Storage of genetic information. Membrane tr

Which is not a function of proteins? Storage of genetic information. Membrane transport. Muscle contraction. Catalysis. The a-helix and beta -sheet are alike in that Both are exam…