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Pls show how to approach the answer Which of the following would give hydrogen when added...
Predict the reactions, if any, when the following hydrogen compounds are added to water, and explain your reasoning of why the reaction occur like that (explain the role of H in each case, is it bronsted-lowry acid or base? why?) a) HBr b) CaH2 c) CH4. d) H2S
22. Which of the following substances, when added to water, will produce a solution with a pH above 7.0? A. NHaCİ B. CHsNHCl C. NH4NO3 D. HOCİ E. NaoCi 23. The following acids are listed in order of decreasing acid strength in water.HI> HNO2> CH,COOH> HOCI HCN. According to Bronsted-Lowry theory, which of the following ions is the weakest base? A. I B. NO. C. CHCOo D. ocT E. CN 24. The following reaction is described as: H2S + H2S...
Which of the following molecules is nonpolar? a. H2 b. HF c. HCl d. HI e. HBr Which of the following molecules can participate in Hydrogen bonding? a. HF b. CO2 c. CH4 d. H2S Which of the following molecules is polar? a. H2O b. CO2 c. CH4 d. N2 e. None of the above In lab, temperature changes caused by ________________ of liquids will be related to the strength of intermolecular forces. a. Evaporation b. Mass c. Density d....
14. When are atoms most stable? A) when they have the fewest possible yale (B) when they have the ma C) when all of the electron Orbit D) when all electrons are paired e the fewest possible valence electrons they have the maximum number of unpaired electrons in all of the electron orbitals in the valence shell are filled ods with 15. Water molecules can form hydrogen bonds with Acompounds that have polar covalent bonds B) compounds that have non-polar...
1. Calculate the quantity of heat released when 8.Sg of hydrogen peroxide decomposes, given: atomic weights 0=16, and H= 1. Hydrogen peroxide decomposes to water and oxygen according to the reaction: H = -196KJ 2. Given the speclflc heat, c,, of water Is 4.18 J/g 0c,how much heat Is needed to warm 200g of water from 22°c to 98°C? q=mC,AT 3. If 20.9KJ of heat were added to 250g of liquid water, how much would its temperature Increase? (Use 4.18 J/goc...
A) How many milliliters of 0.15 M HCl would have to be added to 1.0 L of a buffer containing 0.25 M NH3 and 0.45 M NH4 to make the pH decrease by 0.05 pH unit? The Ka value = 5.6 x 10^-10. B) How many milliliters of the same HCl solution would, if added to 0.204 L of pure water, make the pH decrease by 0.05 pH unit?
Which of the following contains the largest mass percent hydrogen? a.10.0 g H2S b.10.0 g H2O c.10.0 g C2H6 d.10.0 g CH4
pls answer b, g, and h thanks 21-54 Show how you would accomplish the following syntheses. Some of these conversions may require more than one step. (a) isopentyl alcohol isopentyl acetate (banana oil) (b) 3-ethylpentanoic acid → 3-ethylpentanenitrile (c) isobutylamine → N-isobutylformamide (d) ethyl acetate → 3-methylpentan-3-ol (e) cyclohexylamine → N-cyclohexylacetamide (f) bromocyclohexane → dicyclohexylmethanol H (h) CH,OH CN O dimethyl oxalate HM N O
please show work Hydrogen sulfide reacts with oxygen to give sulfur dioxide and water according to the following balanced equation: 2 H2S (g) + 3 O2(g) 2 SO2(g) + 2 H20 (8) If we allow 8.52 g of hydrogen sulfide (H2S) to react with an ex a) Calculate the number of moles of SO2 that can be produced from b) Calculate the mass in grams of SO2 that can be produced from znat can be produced from this reaction: ac...
Which of the following could produce a buffer when added in appropriate amount to a 0.1 M solution of NH3? NH3 HCl NaOH NaCl NH4Br a. HCl only b. NH4 only c. NH4Cl or NaCl d. NH4Cl or HCl e. NaOH only