5.32 A sample of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the circulatory system. If sodium-24 has a half-life of 15 h, what is the activity after each of the following intervals? a. one half-life b. 30 h c. three half-lives d. 2.5 days

4. In which step does the liquid in the system become a low-pressure gas? a. Step 1: Compressor b. Step 2: Condenser Coil C. Step 3: Expansion Valve Step 4: Evaporator Coil d.

I do need help with this problem. It is multiparty. Thank you!

Crossword Puzzle 6 10 4 13 15 5 11 12 3 7 14 2 Name: 1 Across 1. Glassware. Erlenmeyer base, narrow opening. 3. Measure mass on a walks on a 4. If there's a outside in designated area. 10. You may not 11. Never beam. stock bottle. 7. Heating test tube over flame? Point opening from your face and others. 13. Always wear lab. 15. Dispose of 8. Spilled an irritant on skin or in eye? Flush for minutes. or drink in the lab. unused chemicals to a Down 1. The 2. 3. 5. 6. wide Gymnast exit quickly, and meet -toe shoes in the in the proper container. Before leaving the lab, area. hoods pull in noxious vapors. your work Glassware with a wide mouth, used to transport materials. Also a Muppet. Someone hurt? Notify your immediately. Pull back long. when working with flames. 9. Measure volumes with a cylinder. Also, what the class of 2023 did. 12. Always wear safety glasses or when anyone is working in the lab. 14. Be covered from shoulders to Also, "head, shoulders, and toes." 15. Trying to smell a…

Draw the main components that will be present in any HPLC and GC instrument respectively.

RESET Cancel Done Convert 5.890×10³ kg to ug:

AutoSave We hw OFF ... Home Insert Draw Design Layout References Mailings Review View O Tell me R Share O Comments Calibri (Bo.. v 11 v A A E vE v E v E E Aa v AaBbCcDdEe AaBbCcD AaBbCcDdE AaBb AaBbCcDdEe BIU V ab A • I v A v Paste х, х E= == No Spacing Normal Heading 1 Heading 2 Title Styles Pane Dictate Sensitivity C13 NMR Peaks Aldehydes RCO)R Aldehydes and ketones Carbaxylic R(CO)X Carbaxylic acid derivatives Ntrile Nitrile RCN CC C-C Alkyne Akyne R-CC-R RCH20 RCH2-O R4C RAC R3CH R3CH RCH2X X= C-C, C-O, Br, CI, N RCH2X R2CH2 RECH2 RCH3 RCH3 TMS TMS 220 200 180 160 140 120 100 80 60 40 20 Typical chemical shifts in 13c-NMR 9) Why do the peaks of associated with aldehydes (both in H NMR and C NMR) appear so much further downfield than other peaks? C13 NMR Peaks E Page 5 of 5 E English (United States) O Focus 295 words 白

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

|| Interconverting compound Sl units V Convert the following measurement. 9.6 × 10 G-7189.jpg -6 Explanation 1 kg moldL Check 1 g mol. L x10 X