Chemistry

What mathematical tool do we use to determine the ratio of elements in a compound?
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When you lick a popsicle, how does the thermal energy travel between the popsicle and your tongue? What kind of heat transfer is that?
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Please let me know if you can solve any of these!Need help!!
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what is the volume of the solution, in liters? amount added: 0.0129 mol
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Click on the Bloomberg Terminal screen to view data in the GLCO function. Which metal had the highest price movement? O AluminumO NickelO IronO Gold
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What level of structure in proteins is held together by intermolecular R group interactions? Also provide the importance of this structural level in protein function and highlight the type of bonds found in this structure. Explain your detailed answer in a five-sentence paragraph (do not make Table):
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Write an adventure story of a spacecraft that has been launched to study the dwarf planet ceres. What would be a good story?
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Gemtone called rubie are made from an aluminium compound with theformula AlO. The chemical ymbol for aluminium i Al. Give the name of the element that i combined with aluminium in thi compound
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Which contains all the known elements and information about them?A.the elements chartB.the modern tableC.the periodic table of elementsD.none of the above
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The Hoffman elimination below forms two possible alkene products, labeled alkene A and B. Which is the true? O A and B form in equal amounts. O A is the major alkene formed O B is the major alkene formed Fill in the labels to show the Newman projection that would give alkene A and alkene B. Note: If one or more labels are incorrectly placed, a single red X will appear on the top left.
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PLEASE HELP AS FAST AS POSSIBLEDraw a picture of how the chromatography worked. Explain your picture using the following terms: stationary phase,mobile phase, and intermolecular forces.
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The Milky Way galaxy (pictured above) is an example of a(n) ____ galaxy. At the center of the galaxy is a galactic bulge that is around 20,000 light years long. In the very center of the galaxy is a massive ____ that is 4 million times the mass of the sun and has a huge gravitational pull.A. Spiral, SupernovaB. Spiral, Black HoleC. Elliptical, SupernovaD. Elliptical, Black Hole
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When converting from grams to moles or from particles to moles, you mustA addB multiplyC divideD subtract
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Explain reasoning for all answers.6.022 x 10^22 atoms of aluminium make up how many moles of aluminium?A) 6.02 molB) 1.0 molC) 10 molD) 0.1 molHow many atoms of bromine are there in 3 moles of Br?A) 18.066 x 10^23B) 1.8066 x 10^23C) 18.066 x 10^24D) 1.8066 x 10^26How many molecules of Carson dioxide are in 15 moles?A) 6.022 x 10^23 molecules B) 9.033 x 10^22 moleculesC) 6.022 x 10^24 moleculesD) 9.033 x 10^24 moleculesCalculate the moles of KCI in 23g?A) 74.555 molB) 0.65 molC) 0.308 molD) 1.38 x 10^25 molWhat is the molecular mass of C10H22O13?
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In 12 sentences, explain why you could use the same type of model to model any of the different biomacromolecules.
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which pictogram is not mandatory for chemical labels and sds?
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Acetylene gas (C2H2) used in welding, produces an extremely hot flame when it burnsin pure oxygen according to the reaction 2 C2H2(g)+5 O2(g) 4 CO2(g)+2 H2O(g).How much CO2 is produced when 30000 g of C2H2 burns completely?
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What is 3.54 moles of CO2
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Lab: Types of Reactions Analysis and conclusion
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Write the full reaction equation (using chemical structures!) for the following reactions. Please follow the format shown here for maximum credit: acid base conjugate base conjugate acid i. m-nitroaniline + HCI ii. conjugate acid of m-nitroaniline + NaOH iii. benzoic acid + NaHCO3 iv. conjugate base of benzoic acid + HCI Next to each of the above reaction equations, write clearly which side of the reaction is favored-the reactants (left hand side) or the products (right hand side)
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Describe the process of obtaining a pure dry sample of lead (II) sulfate from the reaction between Lead (II) Nitrate and Potassium Sulfate.
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You measure a half a cup of water which is equal to 120 grams. You spill it on your stove and it completely boils off as water vapor. How many liters of water vapor are produced?
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The magnitude of the mathematical product of the charge of the entities with the distance between them is called dipole moment. It is basically the measure of the polarity of the molecule. The molecules possessing greater dipole moment are highly polar.
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What is the percent composition by mass of hydrogen in nh4hco3 (gram formula mass = 79 grams)?.
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