LAB 1 - Exercise - Math and Environmental Science Finished

< STARTING AMOUNT X The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10⁰ cm What is this distance in nm ? ADD FACTOR x( ) 10-⁰ 0.121 10-7 1.21 x 10 1.21 x 10-4 100 10² Question 18 of 46 nm 10-⁰ 1 0.0121 ANSWER 1.21 x 10-15 0.01 10⁰ 1210 1.21 x 10- RESET 1.21 10⁰

Rank the values according to magnitude. Please see screenhot. Can someone help me understand this?

In a particular class, exams are worth 50%50% of the overall grade, quizzes are worth 30%30% of the overall grade, homework is worth 15%15% of the overall grade, and class participation is worth 5%5% of the overall grade. A particular student has earned an average score of 83.0%83.0% on the exams, 71.6%71.6% on the quizzes, 90.0%90.0% on the homeworks, and 100.0%100.0% on class participation. What is this student's overall grade in the course? Report the answer with one digit after the decimal point.

7 Complete the table below. Be sure each of your answer entries has the correct number of significant digits. You may assume the temperature is 25 °C. 4 W formula NH 80°F Partly sunny 0 conjugate acid Continue HCN 3 E Ka 5.6 x 10 0 X 4.9 × 10 -10 $ 4 R -10 с formula F5 HS % 5 T 0 conjugate base H Q Search F6 6 K₂ 0 1.8 x 10 F7 87 & F8 Do X J * 8 - F9 a x10 F10 ( 9 Ⓒ2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Cen C O - F11 ) 0 *+ F12 PrtSc + 11 Insert Subr = Delete Backsp

Read the following burette. Burette reading =

Arrange the values according to magnitude. Greatest Least Answer Bank 7.6 x 10-6 3.3 x 10-2 9.0 x 10-6 51000 1.5 x 105

Ch x du.co X h Aktiv Chemistry 82.17 ADD FACTOR A particular person in America uses 311.0 gallons of water in a given day. How many liters of water is this? x() O + 1244 Your Aktiv Learning trial expires on 08/29/22 at 07:08 PM 1 Question 62 of 73 3.785 311.0 nal 0.25 4 19 up ANSWER 0.9463 0.2642 RESET 2 77.75 1177 (?:

of Chicago - my.CC x Question 18 of 25 The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10-8 Wha this distance in nm ? cm ADD FACTOR ANSWER RESET 0.0121 10° 10-7 1 100 1.21 x 104 1.21 x 10-8 109 1.21 x 10-15 107 0.01 1.21 1210 0.121 10° 10 1.21 x 104 m cm nm 立

Current Attempt in Progress From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the length of time required for 50% recrystallization at room temperature, 20°C (293 K). (a) i kJ/mol (b) i days

Sample Method A Si wt% Method B Si wt% 1 11.570 11.510 15.380 15.350 17.950 17.900 4. 22.840 22.820 5. 25.110 25.190 6. 27.070 27.030 Determine faale- cale =

Research Pr X Research Pr X Paraphrasing X Why Are Hea X CDC Improving Yo × b Answered: B X Chemistry C X Grades for K X Convert grar × Course Hom X openvellum.ecollege.com/course.html?courseld=16519516&OpenVellumHMAC=4fea6e3fbcda3f8de8543052f8006c77#10001 Apps Yahoo Mail YouTube Maps Best Free PowerP... Google Drive Academic Search I Downloads e University Librarie... E UNIVERSITY POR... Student Detail Sc.. I Review I Constants I Periodic Table Scores Balance each of the following chemical equations. Part C You may want to reference (Pages 226 - 233) Section 7.4 while completing this problem. eТext Ca(ОН)2(аq) + HNO3 (aq) —> HәО() + Cа(NO3)2(аq) Document Sharing Express your answer as a chemical equation. Identify all of the phases in your answer. User Settings ΑΣφ ? Course Tools > A chemical reaction does not occur for this question. Submit Previous Answers Request Answer Part D Fe2 O3 (s) + C(s) → Fe(s) + CO(g) Express your answer as a chemical equation. Identify all of the phases…

4. Using the information below:                                                     Trial 1           Trial 2           Trial3 Initial volume of  NaOH             5.0 ml           2.0 ml          3.0 ml Final volume of NaOH               45.0 ml        41.0 ml         44.0 ml Student said the average volume of NaOH is 40.0 ml   Group of answer choices True False

100- 8 8 Relative Intensity $ 20- 0- Relative Intensity 10 200- 80- 40- 20- 0- 10 20 30 m/z 20 20 100 $10 Chlorine OR Bromine OR Neither Chlorine OR Bromine OR Neither 90 100 100- Relative Intensity DO- ģ 20- 0 100 80 10 8 Relative Intensity 3 0- 10 40 30 60 15 m/z Chlorine OR Bromine OR Neither 35 40 45 m/z weytekakumpumakija 30 100 110 55 Chlorine OR Bromine OR Neither

ter 9- CHEM A054 520 2 x Question 12 - Chapter 9 part 2 X с Chapter 9 part 2 Homework i 12 1 points ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%25 8 01:46:13 eBook Hint Print References Mc Graw Hill CH6_Chem103 - Kenai Peninsu X + °C Determine the freezing point of an aqueous solution that is 0.584 m sucrose. Saved DU

Provided are spectra for a compound with molecular formula CgH100 Part A) Give the degrees of unsaturation Part B) Identify the peaks that are associated with specific bonds of the structure and list the corresponding functional groups that the specific bonds belong to. Re- create the example table below that organizes this information. Use the wavenumbers that are already labeled on the spectra. Example table: wavenumber (cm-1) Corresponding Bond Type Corresponding Functional Group C(sp3)-H N-H 2978 3300 Part C) Draw the structure and clearly indicate which hydrogens correspond to which signals in the HNMR spectrum ONLY. The signals are already labeled A-D on the HNMR spectrum. Match the hydrogen labeling (HA, HB, etc.) on your drawn structure to the signal labeling provided. 4300 3320-2872 2951 3006 3003 2001 alkyl amine 1613 1510 1000

For each of the following equilibria, write the equilibrium constant expression for Ke Y Part A 2N₂Os (9) 4NO₂(g) + O₂(g) O Ke = O K₂= O K. OK- Submit Part B [NO₂[0₂] N₂O₁ Ke = [NO₂¹0₂] N₂0₂ N₂O₁] NO₂0₁ N₂O, NO₂] O₂ Request Answer 3F2(g) + Cl₂ (9) 2CIFs (9) (CIF₂ CI, P ICE, P Pearson

STARTING AMOUNT X 0.1 10-⁹ A human hair is 75.0 ADD FACTOR x( ) 0.0000300 104 3.00 1 2.54 um across. How many inches is this? 0.001 10⁹ 10-6 ANSWER 100 0.01 1000 30.0 0.00300 104 RESET 2 0.330 75.0 10.0 106

What is the difference between a decigram balance and an analytical balance?

Please help me complete question 1,2,and 3

For number 19, I feel I am not doing it correctly. What is the steps and answer to number 19?

People Tab Window Help ubmission History: 2. X 101 Chem101 E AWR prep 5 Google Docs Question 15 of 17 An atom of a particular element has a volume of 7.8 x 10-31 m3 What is this volume in cubic nanometers ? ADD FACTOR ANSWER RESET *( ) %3D 10° 10-6 (10-6)3 7.8 x 10 22 (10°)a (1)3 106 7.8 x 10 31 7.8 x 10-4 1 10-9 7.8 x 104 (10°)a nm nm3 um m3 um3 FEB 6. 3. tv

2 W S Type your answer to the following: Consider the steps the student took in the following scenario. Then describe anything the student did wrong and how it would have affected the student results (too high, low, or unchanged) and why. X A student forgot to weigh the filter paper prior to filtering the salt from the sand. To make up for this, the student weighed a different filter paper from the box and used that mass in the calculations. Edit View Insert Format Tools Table 12pt Paragraph # 3 80 F3 E D $ 4 C 888 R LL F BI U % 5 V F5 T G MacBook Air 6 F6 Y B T² & 7 H F7 A U N * 00 8 J 1 ( 9 M K O F10 L X P

1:35 Sun, 16 June b III = University of South Australia SP2 2024 Chemistry 100 Week 11 (20/5 - 24/5) The correct answer is: 45.0 Dashboard Week 12 (27/5 - 1/6) Course Outline Week 13 (3/6 - 7/6) Question 7 Incorrect Content Integrity Academic Online Quizzes Practice Quiz (updated with correct dates for 2024) Online Quiz 1 Mark 0.00 out of 1.00 Remove flag a. CuO x b. CuCl₂ C. NaBr K Online Quiz 2 Assessment Online quiz 3 Grades Online quiz 4 10 ? ་ྗ$དཱི49% Yunseo Kwon Which one of the following cannot form a crystalline solid with a lattice based on the sodium chloride structure? • d. LiF e. Rbl Ө Extensions Resources Recordings Online quiz 5 Mid-semester Test Final examination PASS (Peer Assisted Study Sessions) Your answer is incorrect. The correct answer is: CuCl2 16 b Finish review = ||| о ←

what should i write for the final answer with the right number of sig figs?

Can you help me please, thankyou I really appreciate it

How do I fill the tables out?

Number 8 pls I need help with that

C T X [References) It is sometimes necessary to take powers or roots to solve chemistry problems. eq Take powers and roots as needed on your calculator to complete the following. eq a = 1.335 %3D b = 18.3 c= 4.004 66 %3= Visited =2.02 da %3D req Submit Answer req Leura sidurane unoraaON req Preq Preq 2req 2reg

A 106.2 mL sample of 0.100 M methylamine ( CH3NH2; Kb = 3.7 x 10-4) is titrated with 0.235 M HNO3. Calculate the pH after the addition of each of the following volumes of acid.

esc Calculate oral dosage in teaspoons (tsp) of Tylenol suspension liquid (32.0 mg/mL) for a 27.5 lb child. Recommended dosage = 13.0 mg/kg. 1 J' t A N ? Type here to search @ 2 ** W S # 3 E D X C $ 4 0 IOI R F 15 % 5 V OO T G 19 6 B Y 4- & H 7 U N 4+ 8 J hp to 144 1 9 M 9 K 2 fo ➤11 > O O L ADI P : 112 [

Can you help with 13. This is not a graded question as it is a practice question . I am 60 years old and helping my son prepare for the AP exam in a few months. We do questions at the back of the textbook by Zumdahl and Zumdahl

Based on the information given, identify the most significant error in the preparation of Graph 2.     A)  The title appears in a font which is too small.   B)  The best-fit line does not intersect any data point.   C)  There is wasted space on the graph.   D)  The x-axis scale divisions are uneven.

STPKsYapxmOBQpqJ9sYHEQf udwLFoPO2ojmMGw/edit s Help Last edit was seconds ago B U A G O O- E E E E E E - E - E E 14.5 3 4 5 6 You are asked to perform an experiment to determine the density of square block below. In order to complete your calculations you will need to (AKS 1b, DOK1). Question options: 1. Use the electronic balance to determine the mass of the block. 2. Use water displacement to determine the volume of the block. bD 1. Use the electronic balance to determine mass. 2. Use ruler to measure the length, width, and height to determine volume. C= 1. Use a pipet to determine the mass of the block. 2. Use water displacement to determine to volume of the block. Pr Au 立

I’m not sure how to do this type of chemistry Also if you need the ingredients it’s the second pic