Chemistry

when does thermal energy stop moving
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What is the resultant displacement?
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2C 2 H 6 +7O 2 ***>4CO 2 +6H 2 O if 7.0 g of C 2 H 6 react with 18 g of O 2 , how many grams of water will be produced
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a put question in screen shot
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NEED ASAP WILL MARK BRAINLIEST ON TIMERA student determines that she used 0.0665 mol of sodium hydroxide (NaOH) to completely titrate 25.00 mL of sulfuric acid solution (H2SO4). What is the molarity of the sulfuric acid?0.00131 M0.00262 M1.31 M2.62 M
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can someone Fing answer this PLEASE! NOWChemical Reactions Performance TaskDescription: A student conducted two different demonstrations in their science class that started with copper chloride (CuCl). They have provided you with the following data tables to help you determine if a physical change or chemical reaction occurred during the demonstrations.Demonstration 1:Reactantssubstances at beginning of reactionProductssubstances at the end of the reactionSubstance(Chemical Formula)Copper Chloride(CuCl)Water(HO)Copper Chloride(CuCl)Water(HO)PropertiesDensity: 2.51 g/cmMelting Point: 100CBoiling Point: 993CDensity: 1 g/cmMelting Point: 0CBoiling Point: 100CDensity: 2.51 g/cmMelting Point: 100CBoiling Point: 993CDensity: 1 g/cmMelting Point: 0CBoiling Point: 100CBased on the patterns (similarities and differences) in the properties of the reactants and products in the table above, is this a physical or chemical reaction? Cite specific evidence from multiple properties in the data table to support your answer. (5pts)ClaimEvidenceReasoningDemonstration 2:Reactantssubstances at beginning of reactionProductssubstances at the end of the reactionSubstance(Chemical Formula)Copper Chloride(CuCl)Iron(Fe)Iron Chloride(FeCl)Copper(Cu)PropertiesDensity: 2.51 g/cmMelting Point: 100CBoiling Point: 993CDensity: 7.86 g/cmMelting Point: 1538CBoiling Point: 2682CDensity: 3.16 g/cmMelting Point: 677CBoiling Point: 1023CDensity: 8.96 g/cmMelting Point: 1085CBoiling Point: 2562CBased on the patterns (similarities and differences) in the properties of the reactants and products in the table above, is this a physical or chemical reaction? Cite specific evidence from multiple properties in the table to support your answer. (5pts)ClaimEvidenceReasoningUsing the data from Demonstrations 1 and 2, fill out the table below to describe the difference between a physical and chemical reaction in terms of the rearrangement and/or conservation of atoms and molecules. Choose conserved or not conserved for atoms. Choose rearranged or not rearranged for molecules. (4pts)Physical ChangesChemical ReactionsAtoms:(conserved/not conserved)Molecules (Rearranged/Not rearranged)
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Help me 6th grade science !:))
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Which of the following best summarizes photosynthesis?A.A chemical reaction involving nitrogen and other atmospheric gasesB.An adaptation of plants that allows them to add nutrients to the soilC.A process by which plants produce sugar using the energy of sunlightD.An exchange of gases between animals and the air or water of their habitat
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Which statement best describes the difference between nuclear fission and nuclear fusion reactions?
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HELP MEHHHHH were does the first stage of cellular respiration occur ?
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Sam used 38 quarts of paint for the outside of the barn and he used 26 quarts for the inside of the barn. How many gallons of paint did sam use to paint the entire barn?
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Could somebody answer these questions for me? Thanks! 1. What percentage of the earth is covered by water?2. What sorts of signals does the brain use to communicate sensations, thoughts and actions?3. Did dinosaurs and humans ever exist at the same time?4. What is Darwin's theory of the origin of species?5. Why does a year consist of 365 days and a day of 24 hours?
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* Ill give you BRAINLIST * ( have to get it right ) Joshua has learned that the human body is made up of many body systems that work together to function for life. Which of the following does NOTprovide an example of two human body systems working together?
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A chemistry student mixes 25 milliliters of 3.0 M hydrochloric acid (HCl) with excess sodium hydroxide. The chemicals react according to this chemical equation:HCl + NaOH NaCl + H2O.If the volume of the resulting solution is 68 milliliters, what is the concentration of sodium chloride?
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Calculate the ATP yield for the complete oxidation of the 20-carbon unsaturated fatty acid gadoleic acid (a 20:1-9 fatty acid). (You should consider the -oxidation steps, processing of acetyl-CoA through the citric acid cycle, and electron transport. Production of one GTP should be considered the equivalent of production of one ATP. Enter your answer to three significant figures.) ATPs are gained for each gadoleic acid oxidized
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10 mL of 6 M HCL are diluted to 1 L with distilled water. What is the molarity of the dilute solution?
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which term names a small icy object that orbits the sun?
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Is amylopectin a straight chain polysaccharide
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Which planet do scientists believe prevented the asteroids in the asteroid belt from forming a planet? Earth Jupiter Mars Neptune
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1. What are the trends for atomic size across a period and down a group for themain group elements? 2. Draw the following Lewis structures:a) ammonium ion b) sulfur trioxide c) hydrogen cyanide 3. Using formal charge formula (or electronegativity differences), to determinethe following the best structure, OCS, COS or CSO.
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If a buffer has an initial pH of 6.34 and the acid has a Ka of 3.46 10-4, what is the ratio of conjugate base to weak acid in the buffer system?
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During El Nio years, why is Christchurch, New Zealands temperature cooler than usual?Choose the claim that is most similar to your idea. Your response does not need to be the same as your partner's.This is why Christchurch, New Zealands air temperature is cooler than usual during El Nio years: Claim 1: The amount of incoming energy from the sun changes.Claim 2: Something about Earths surface (land or water) changes.Claim 3: Something about the air changes.Please get back to me quick, due in an hour. First to answer will be named brainliest! HELPP
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You weighed out 0.020 g of your crude aspirin product in order to determine the amount of salicylic acid impurity. Following the procedure outlined in the manual, you dissolved the solid and diluted the solution to a final volume of 10.0 mL. If the absorbance of your sample solution was 1.07, what was the percent salicylic acid in your product
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what is radium used for
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