Using chemicals to restore obliterated identifiers on firearms, tools, vehicles, boats, etc. is known as: Group of answer choices Serial Number Restoration Restorative Analysis Identification Tool Mark Recovery
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- (in ML) evo/index.html?deploymentld%35575082893418928890996 2&elSBN=9781305657571&nbld%3D2199898&snapshotld%3D21998... * INDTAP Q Search this co Use the References to access important values if needed for this question. Oxalic acid dihydrate is a solid, diprotic acid that can be used in the laboratory as a primary standard. Its formula is H2C204•2H2O. A student dissolves 0.210 grams of H,C,O4•2H¬O in water and titrates the resulting solution with a solution of sodium hydroxide of unknown concentration. If 27.3 mL of the sodium hydroxide solution are required to neutralize the acid, what is the molarity of the sodium hydroxide solution ? M Submit Answer 5 question attempts remaining NeExplain two separation techniques how may be feasible for H2O vs Ethanol. One can be an industrial approach other can be a laboratory-scale method.A 1.068 g as received representative sample of fish. Before ignition, moisture was determined to be 5.65%. After ignition, the ashed sample registered 0.2685 g (ashed sample + crucible). The constant weight of crucible was 0.0178 g. From the data given, calculate % ash in the as received sample.
- Select all true statements. ANFO explosive ...1-is more sensitive when density is higher than 1.2g/cm32-produces carbon monoxide (CO) when in a fuel shortage3-has a low velocity of detonation (VOD) and is useful to produce heave action forsoft and fractured rocks4-should not be stored for long periods of time5-has a higher velocity of detonation (VOD) when used in small diameter blast holes6-can be over-oiled (fuel excess) to account for potential fuel evaporation duringhot summer monthsA 1.058-g sample of a copper unknown was dissolved in water and diluted to a final volume of 100.0 mL. The sample was analyzed using a UV/VIS spectrophotomete and the absorbance was found to be 0.529. The calibration curve gave a best fit line of A = 8.58 M. Calculate the %/whw) Cu in the sample Give place after the deocima t enter unitspurse Home n/course.html?courseld%3D15769386&HepID3D169f9f4bdc9f2df8dc5b7368af32865e#10001 e Home troduction to MasteringChemistry 2 of 15 roduction to Numeric Answers Part B When entering large numbers in the answer box, do not use commas. For example, enter 1276400 for the number 1,276,400. Do not enter 1, 276, 400. If you accidentally enter commas, you will receive feedback as a reminder. Answer the following question by typing the numeric answer into the answer box. What is the sum of 9260 and 3240? Express your answer numerically to at least three significant figures. • View Available Hint(s) Eν ΑΣφ sum = Submit Scientific notation You may want to enter 367.000 000 in scientific notatinn as 3 67 x 10° There are twn ways to do this P Pearson Dormicdonc Contact l. Copuriaht 0207 0 Doarcen Education Inc Alrightr rorornd Armr 12:58 hp
- hrome File Edit View History Bookmarks Profiles Tab Window Help Watch Gilmore Girls | Netflix ALEKS A ALEKS - Reyna Garc A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-IVDWKW BBZZ16tTytly4Fcf Spotify Web Playe... M Common Ethical D.. O CHEMICAL REACTIONS Identifying the limiting reactant in a drawing of a mixture The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur oxygen chlorine Suppose the following chemical reaction can take place in this mixture: CO(g)+2 H,(9) → CH,OH(9) Of which reactant are there the most initial moles? Enter its chemical formula: Of which reactant are there the least initial moles? Enter its chemical formula: Which reactant is the limiting reactant? Enter its chemical formula: Explanation Check FEB 13Solve all parts otherwise I will downvotedings OWLV2 | Assig X MindTap - Cen X MindTap - Cen X G amu of ca - Go X b My Questions 7/static/nb/ui/evo/index.html?elSBN=9781337790840&id%=299783426&snapshotld%=785765& * CENGAGE MINDTAP Chapter 8: Chemical Composition f. 0.000301 mole of strontium fluoride Answer + 39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of phosphine, PH3 b. 4.75 g of phosphine, PH3 c. 1.25 × 10-2 g of lead(II) acetate, Pb(CH3CO2), d. 1.25 x 10-2 moles of lead(II) acetate, Pb(CH3CO2)2 e. a sample of benzene, C, H6, which contains a total of 5.40 moles of carbon 40. Calculate the number of molecules present in each of the following samples.
- Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by completions of the statement. Select the one lettered answer or completion that is best in each case. Write your answer before each number. 27.Quality control department maintain and store records that represent the history of batch from start to finish a. Quality Coordinating office b. Analytical Laboratory d. Material Inspection Section e. Biological Testing Laboratory C. Specification & Analyrtical Development section 28. Which of the following cannot be assay by direct titration with standard base? Citric acid in calamansi juice a. Magnesium hydroxide in Milk of Magnesia C. Acetic acid in vinegar b. d. Diluted phosphoric acid 29. This is used for quantitative preparation of a standard solution: a. Pipet C. Volumetric flask b. Graduated cylinder d. BuretFirefox Pile Euit View History DOUNTial kS Heip ... my.CSMD.edu Module 12 HW Ch NWP Assessme X T Module 9 HW Cha w NWP Assessment e Module 11 HW Cha wPNWP Assessmen O 8 https://education.wiley.com/was/ui/v2/assessment-player/index.html?launchld%3Db0085ec6-77d3-4053-89d4-c26a8188bel e Module 12 HW Chapter 21 - Selected Exercises Question 8 of 8 -/1 三 The enolate of a ketone can be treated with an ester to give a diketone. Drawa mechanism for this Claisen-like reaction and explain why an acid source is required after the reaction is complete. For the mechanism, draw the curved arrows as needed. Include lone pairs and charges in your answer. Do not draw out any hydrogen explicitly in your products. Do not use abbreviations such as Me or Ph. Me 1) LDA Mulc OEt 2) 3) H,0 Que Multist Quest Step 1 Multipar Draw step 1 of the mechanism. Questic Molecular Question CH, Multipart CH, CH, Viewing Q Multistep / Edit Drawing MacBook Air esc 30 D00 F4 FI F2 F3 FS A vo F10 %23 2$ & 2 3 4. 6 7 9 Q E R…How many tabs are to be cut into the filter paper in construction of the apparatus, and how many different metals are to be placed on the apparatus? O There are to be 5 tabs cut, and S metals placed on them. There are to be 6 tabs cut, but only 5 metals placed on 5 of the 6 tabs. There are to be 5 tabs cut, and 7 metals placed on the S tabs, with two metals overlapping O No tabs are to be cut at all, and all 6 metals are to be placed wherever I feel like.
