Chemistry

an ideal gas has a volume of 3.0 L is the number of moles of gas in the temperature of doubled while the pressure remains constant. What is the new volume?
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A student exposed r-1-bromo-2-propanol to sodium hydroxide, isolated an optically active product, and collected the proton nmr below. what is the structure of the compound that the student isolated?
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Draw the sun and label the 4 layers from middle to the surface.
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when the temperature of a rigid hollowsphere containing 685 l of helium gasis held to 621 k, the pressure of the gasis 1 kpa. how many moles ofhelium does the sphere contain?
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What happens to the solubility of gases in water as pressure increases?Question 9 options:solubility increases so less solute dissolvessolubility decreases so more solute dissolvessolubility increases so more solute dissolvessolubility decreases so less solute dissolves
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Two paths in a park intersect so that one of the angles at the intersection is 75. What are the three other angle measurements formed by the intersection? A. 15, 75, 175 B. 65, 105, 135 C. 75, 105, 105 D. 75, 115, 115
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Convert 7.41 x 1024 molecules of C2H2 to grams
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Which of the following electronic transitions for hydrogen would result in the emission of a quantized amount of energy?A. n = 1 n = 2B. n = 2 n = 3C. n = 5 n = 4D. n = 4 n = 6
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what causes the difference between ruby and corundum? choose one: a. impurities in the mineral b. formation pressure c. formation temperature d. mineral structure
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PLEASE HELPPPP asapppppppppp
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glucose molecule starch molecule protein molecule carbon dioxide molecule water molecule amino acid molecule 1. In the space below, list the molecules in order from smallest to largest. oxygen molecule
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in the solidifcation process the production of metallic slabs or ingots is known as the process of turning the metallic slabs or ingots into useful shapes is known as
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tungsten has a radius of 141 pm and crystallizes in a body-centered cubic structure. what is the edge length of the unit cell?
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What is the balanced chemicalreaction for the synthesis ofnitrogen with hydrogen?A. N +H NHB. N + 2H 2NH3C. 3N + H 2NH3D. N + 3H 2NH3
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how many electrons does cl want to gain? hint: how many are gained to form a stable noble gas electron configuration, ns2 np6 (octet rule)?
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the specific heat of plastic is 50 times greater than the specific heat of lead, 10 times greater than the specific heat of stone, and 1.5 times greater than the specific heat of water. if the samples of plastic, lead, stone, and water have identical masses and identical starting temperatures, and are given identical increases in energy of 1,000 j, which sample will end up with the highest temperature?
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what minimal photon energy in ev is required to eject an electron from the ground state of a doubly ionized lithium
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the mass of a single atom of an element which has only one stable isotope is 1.79*10^-22 grams. what is the atomic weight of the element
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which three acids are used during this laboratory? give names and formulas for each. also indicate whether each acid is weak or strong and whether each acid is an oxidizing acid. acid formula acid name strong or weak? oxidizing or not? 1. 2. 3.
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write the reaction that produces carbon dioxide in the separatory funnel in the workup of the reaction. g
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if a sample has 50 atoms of 87 rb and 50 atoms of sr, how many half-lives has the sample gone through?
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What happens to molecules once they are eaten by animals
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a student prepares a solution by combining 100 ml of 0.30 m hno2(aq) and 100 ml of 0.30 m kno2(aq). which of the following equations represents the reaction that best helps to explain why adding a few drops of 1.0 m hcl(aq) does not significantly change the ph of the solution?
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(a) Calculate the number of moles in 12.25 kg of ammonium chloride (NH4Cl) Relative Formula Mass (Mr) = 53.5answer in standard for to 2 sf
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