Chemistry

Which type of intermolecular attractive force operates between (part A) all molecules, (part B) polar molecules, (part C) the hydrogen atom of a polar bond and a nearby small electronegative atom
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substance formed of crystals of equal numbers of cations and anions held together by ionic bonds is called a(n) _____.
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What is the mass of a nitrogen dioxide molecule?
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The key to separating liquids with similar boiling points is to maximize the number of ____________. Group of answer choices: A. component platesB. intermolecular forces C. vaporization platesD. theoretical plates
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What is the wavelength (in nm) of the least energetic spectral line in the visible series of the H atom?
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At Mountain X, you could boil water in less than 3 minutes. At Mountain Y, it takes you almost 7 minutes to boil the same amount of water. What can be said about the elevations of both mountains?A. The elevation of both mountains is the same.B. Mountain X has a higher elevation than Mountain Y.C. Mountain X has a lower elevation than Mountain Y.D. Cannot determine from the information given
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A scientific model is easier to interpret and understand when it includes the main parts or processes, rather than every detail ofevery part or process.Please select the best answer from the choices providedOT OF
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Complete each of the definitions with the appropriate phrase. Precision means that measurements are close to Accuracy means that measurements are close to Anawer Bank each other an accepted value |individual several
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Solution of the Schrdinger wave equation for the hydrogen atom results in a set of functions (orbitals) that describe the behavior of the electron. Each function is characterized by 3 quantum numbers: n, l, and ml ... n is known as the quantum number. ... l is known as the quantum number. ... ml is known as the quantum number. ... n specifies l specifies ml specifies ... A.The orbital orientation. B.The energy and average distance from the nucleus. C.The subshell - orbital shape.
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Beryllium-11 is a radioactive isotope of the alkaline metal Beryllium. It decays at a rate of 4.9% every second. Assuming you started with 100%, how much would be left after 45 seconds?\
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Calculate the number of formula units in 41.40 grams of Ca(CIO3)2
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A sample may contain any or all of the following ions: Hg22+, Ba2+, and Mn2+.(a) No precipitate formed when an aqueous solution of NaCl was added to the sample solution.(b) No precipitate formed when an aqueous solution of Na2SO4 was added to the sample solution.(c) A precipitate formed when the sample solution was made basic with NaOH.Which ion or ions are present in the sample solution? (Select all that apply.)Mn2+ ionsBa2+ ionsHg22+ ions
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Chemical reaction to form products this chemical equation represents one such reaction the coefficient for one of the reactants or products is incorrect which part of the chemical equation is incorrect. 2ch + 10o -> 8co +10ho
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Calculate the concentrations of all species in a 1.15 M Na 2 SO 3 (sodium sulfite) solution. The ionization constants for sulfurous acid are K a 1 = 1.4 10 2 and K a 2 = 6.3 10 8 .
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An element belongs to group 17 of the periodic table. This element is most likely a ____. A solid of this element would have a ____ appearance.
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Combination (Synthesis) Reactionspls help!
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Explain why elements in the same group of the periodic table have similar chemical properties
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What was the significance to India of the Persian conquest of the Indus Valley and Kashmir under Emperor Darius in the sixth century B.C.E.?
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What ions are possible for the two largest stable elements in Group 4A(14)? How does each arise?
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For the equilibrium Br2(g) + Cl2(g) 2 BrCl(g) the equilibrium constant Kp is 7.0 at 400 K. If a cylinder is charged with BrCl(g) at an initial pressure of 1.00 atm and the system is allowed to come to equilibrium what is the final (equilibrium) pressure of BrCl? For the equilibrium the equilibrium constant is 7.0 at 400 . If a cylinder is charged with at an initial pressure of 1.00 and the system is allowed to come to equilibrium what is the final (equilibrium) pressure of BrCl?a. 0.31 atm b. 0.15 atmc. 0.57 atmd. 0.22 atme. 0.45 atm
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A 8.6 g rock sample is added to a graduated cylinder filled with water, causing the level to increase from 12.8 mL to 13.6 mL. What is the density of the rock sample?
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How many molecules of sodium oxide will be created if 275 grams of sodium reacts with excess oxygen?Given the equation: 4Na + O2 -> 2Na2O
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List three ways in which metals and nonmetals differ.
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PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!!!A sample of nitrogen occupies 10.0 liters at 25C and 98.7 atm. what would be the volume at 20C and 102.7 atm using the combined gas law?A. 9.45 LB. 10.2 LC. 4.52 LD. 3.14 L
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