Master Chemistry with Fun Quizzes & Brain Teasers!

Consider a PTFE molecule adjacent to a PVC molecule. Select all of the secondary bonding types that exist between these two molecules. hydrogen bonding interactions between temporarily induced and permanent dipoles interactions between dipoles that are temporarily induced B covalent bonding D ionic B metallic bonding D interactions between permanent dipoles
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How many protons, neutrons, and electrons does an atom of Carbon-13 contain? Carbon has an atomic number of 6.A) 6 protons, 6 electrons, and 13 neutronsB) 6 protons, 7 electrons, and 7 neutronsC) 6 protons, 6 electrons, and 7 neutronsD) 13 protons, 6 electrons, and 6 neutrons
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np-237 has atomic mass of 237.0481 u. what is the binding energy per nucleon for this nuclide? the mass of a neutron is 1.0087 amu, the mass of a proton is 1.0073 amu and the mass of an electron is 5.486 x 10-4 amu. provide your answer in joules rounded to 3 significant digits.
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calculate the wavelength of light emitted from a hydrogen atom when it undergoes a transition from the n
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25.00 ml of an unknown concentration of acetic acid is titrated with 40.62 ml of the standard base (use molarity from 9 above). what is the molarity of this acid? (hint: example 12.4
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how are minerals classified? question 3 options: a) based on their chemical structure b) based on solubility c) based on amount needed per day d) based on food source
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each of the structures for clocl , ncoh , and clno has atoms connected in the order given in their formulas. identify the type of hybridization for the central atom in each compound.
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45. what type of organic compound can be reversibly chemically altered to become more water soluble?
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given 2nan3 (s) --> 2na(s) 3n2 (g) if the reaction yields 21.1l of nitrogen gas what mass of nan3 in grams would be required to produce this volume at stp?
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which list contains only strong acids? (5 points) a. hcl, hno3, hf, hclo4 b. h2so4, h3po4, hclo4, nh3 c. hno3, h2so4, naoh, h3po4 d. hcl, hno3, h3po4, hclo4 e. hcl, h2so4, hclo4, hi
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when 2.16g of h2 reacts with excess o2 by the following equation, 258kj of heat are released. what is the change of enthalpy associated with the reaction of 1.00mol of hydrogen gas?
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1) what type of a reaction is used in this experiment to determine the concertation of the analyte? a) acid/base b) precipitation c) redox d) neutralization
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what mass of sodium phosphate would have to be added to 2.0 l of this solution to completely eliminate the hard water ions? assume complete reaction.
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assume there exists some hypothetical methat that exbihits ferromagnetic behavior and that has 1 simple cubic crystal strecutre, and atomic radius of 0.130 nm and a saturation flux density of 0.75 tesla. determine the number of bohr magnetons per atom for this material
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a motorcycle tire when properly inflated contains 0.406 mol of air and has an internal volume of 1.52 liters (l). the tire will burst if its internal pressure reaches 7.25 atm. to what temperature, in oc, does the air in the tire need to be heated to cause a blowout?
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what will be the ph change when 20.0 ml of 0.100 m naoh is added to 80.0 ml of a buffer solution consisting of 0.166 m nh3 and 0.186 m nh4cl? (assume that there is no change in total volume when the two solutions mix.)
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Construct an efficient three-step synthesis of 1,2-epoxycyclopentane from bromocyclopentane by dragging the appropriate formulas into the bins. Note that each bin will hold only one item, and not all of the given reagents or structures will be used.
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Using the data in Table 1, determine which atom in a bond between carbon and nitrogen would be negatively polarized (C or N). explain
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help fast Which products are the result of a reaction between potassium fluoride, KF, and sodium hydroxide, NaOH?KNa and FOHKOH and NaFNa and KFOHK and FNaOH
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va compound is found to be made of 82.659% carbon and 17.341% hydrogen. which choice is the empirical formula for this compound?
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if there are no reactions in the citric acid cycle that use oxygen, o2 , why does the cycle operate only in aerobic conditions?
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the half-life of methyl mercury in the body is 70 days. how many days are required for the amount of methyl mercury to drop to 10% of the original value after accidental ingestion.
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a compound was analyzed and was found to contain the following percentages of the elements by mass: barium, 89.56%; oxygen, 10.44%. determine the empirical formula of the compound.
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what is the name of the following compound? multiple choice 2-chlorohexyl ethanoate 1-chlorohexyl ethanoate ethyl 2-chlorohexanoate ethyl 1-chlorohexanoate
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