Convert 6.2 тедадтатя kilograms Report your answer in hectoliters deciliters scientific notation using the following form: 1.23 x 104 would be reported as 1.23R10^4 (no spaces).

A sample sodium is being dried. After 1 hour drying, the mass of the sample was 0.337g. After an additional 30 minutes of drying, the mass of the sample is 0.333g. What is the percent change between the first and second meaasurement? if to be considered "dry", two consecutive measurements must have a percent change <_ +- 1%; is the sample dry?

2a. Volume in graduated cylinder , indirect method - volume of a 400mL Beaker(2 methods) measure in to the 10ths place. Fill#1/Fill#2/Fill#3/Fill#4/Fill#5/= Total Volume . 2b. Direct Method ( use formula for the volume of a cylinder):V=nr(2)h {show work} Radius/ height/ n-3.1415/ Volume (n r2 h)

O Course Home b Chemistry Question | bartleby + O X -> A openvellum.ecollege.com/course.html?courseld=16561285&OpenVellumHMAC=Ddd25775cc7b85cec3204f753df519590#10001 Q * E Apps YouTube O Maps E Connect - To Do As... O ocCC Moodle P chem work b help A Balance Chemical E. Gmail CHEM-1123-EW40S Late Spring 2021 Hi, ashlee v Sign Out Help Mastering Chemistry Course Home O My Courses Syllabus Part A Scores Classify these amino acids as acidic, basic, neutral polar, or neutral nonpolar. еТext Drag each item to the appropriate bin. Document Sharing • View Available Hint(s) User Settings Reset Help NH2 c=NH2 NH CH2 CH2 CH2 H,N-C-coo Course Tools > CH, CH, CH NH2 NH2 CH2 CH2 CH, CH2 CH3 CH3 HN-C-coo H,N-C-coo HN-C-coo H,Ñ-c-coo H. H. H. Asparagine Glutamine Arginine Leucine Alanine Acidic Basic Neutral polar Neutral nonpolar 10:59 PM P Type here to search 99 3/10/2021

rch F9 * CO 8 Part A Units Specify the units of your answer. Review a list of acceptable units. No credit lost. Try again. P Pearson rson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Pmissions | Contact Us | F10 ( 9 Convert 8.8 kcal to its value in calories. Express your answer to two significant figures and include the appropriate units. abbreviations for the units. 8800 F11 μA ) 0 Bb → C F12 LÉ Home End + 11 Review - Constants | Peri Insert Delete < ^ C Backspace NumLock 12:12 2/1/20

Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 8.00x102 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray? Express your answer with the appropriate units. • View Available Hint(s) Tempjetes Symbols undo redo Teset keyboard shortcuts Help Value Units moles of luminol =

Can you explain the steps to solve it?

Mon 4:35 PM nnections | Un X * Student Employment | Car X Illinois State University : H X Mind Tap - Cengage Learn X G If a sample of lithium con index.html?deploymentld%3D55750828934189288909969212&elSBN=9781305657571&nbld%3D2199898&snapshotld%3219989. * DTAP Q Search this Use the References to access important values if needed for this question. If a sample of lithium contains 2.50x10 atoms of lithium-7 and 2.00×10³ atoms of lithium-6, what is the percentage of lithium-6 atoms in the sample? Submit Answer 5 question attempts remaining Next Autosaved at 4:32 PM Back

File Edit + Add Slide Insert Slide H View 125% Zoom Format + Add Page Play Keynote Live Table ¶ ✓ Insert Chart # Table Chart APR 9 T Text DENSE HW (15) ~ NEW DENSITY (1) ► T Text Shape Media Shape Comment Media DENSITY EXPERIMENT HOMEWORK 1. A few mls of an insoluble liquid is added to water. The density of the insoluble liquid is 1.8 g/L. What will happen upon mixing? Which layer will be on top? 2. Why does ice float on water? 3. What would you use to measure the mass of a solid? 4. What would you use to measure the volume of a liquid? 5. Density can be used to: 6. Is density a physical property or a chemical property? 7. A meniscus must be read at the top of the dip, the bottom of the dip, or above the dip? Comment MacBook Air Ne Collaba QUEENSBOROUGH SU COMMUNITY COLLEGE

Tab Window Help Mind Tap - Ceng X loymentid=5735112480241329813180832311&eISBN=9781305862883&id=1707786068&snapshotid=3322539& Mathemati X ATM HOMEWORK MC X mL hydrochloric acid An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer. Submit Answer Use the References to access important values if needed for this question. Sy 0.0044 1/(0.20 X ion: Volume Acid/Base: This is group attempt 1 of 10 References tv What volume of a 0.201 M hydrochloric acid solution is required to neutralize 23.6 mL of a 0.188 M barium hydroxide solution? What volume of X all Z A W 8 O Mor New Tab > Q Search thi Regenerat