Module 2 Lesson 2 Assignment Attempt review VVS

Arrange the values according to magnitude. Greatest     Least Answer Bank 7.1×10−6 3.3×10−2 52000 9.0×10−6 2.2×105

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.

< 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

Question 2 of 22 This question is designed to ensure that you are using your calculator correctly. Use a calculator to do these calculations. Keep at least two significant figures in your answers. 1.6 x 104 %D 8.6 x 10-2 TOOLS x10

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

Name the following Fe(NO3)2

3500 nm isn't an option.

6 of 11 I Review | Constants | Periodic Table Part B Find the value of 17 2 15 11 Though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. Enter the numerator followed by the denominator, separated by a comma. View Available Hint(s) VO AE ? Your submission doesn't have the correct number of answers. Answers should be

Please help me complete question 1,2,and 3

i think this is physics and chemistry so i hope you can help me to answer this, only TRUE OR FALSE

Can someone please help me fill this graph out and answer the 4 questions on the bottom thank you very much.

Use the exponent (EE) functionality on your calculator to do these calculations (a & c should be expressed to the tenths place). 1.6 x10* x 10 7.2 x10-2 (1.0x10-3) 7.63 x 10

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

Pmease assist with number 1.   this is NOT a graded question.  See below: 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

(number 15, for the second picture)

Find the weighted average of these values. Value Weight 5.00 75.0% 6.00 15.0% 7.00 10.0% weighted average:

1211 120 110- 100- 9어 1986,46cm-1, 92.30%T 1888.12cm-1, 86.12%T 523.69çof-1. 89.49%T 2115.07cm-1, 87,12%T 80- 2868.59cm-1, 81.50%T 2324.95cm-1, 80.38%T 3056.42cm-1, 78.57%T 550.70cm-1. 78.65%T 1702.35cm-1, 76.07%f 1927.16cm-1. 77.87%T 70- 564.67m-1, 79.00%T 1075 B3cm-1, 73.25%T 1998.63cm-1, 70.10%T 615,31cm-1. 70.28%T 596.43cm-1, 73.02%T 1175.49bm-1 68.00%T 1220.95cm-1, 70.17%T 1321.38cm-1, 65.41% 813.05cm-1 67.15%T 864.57cm-1, 70 74%T 1150.80cm-1, 71.53%T 764.65cm-1, 61.64%T 944.04cm-1|60.89%f 935.39cm-1, 61.19%T 918.05cm-1, 57.40%T 1160.53cm-1, 71.59%T 785.46cm-1, 79.57% 60- 1575.58cm-1, 58.026T 1447.52cm-1, 57.15%T 504.91cm-1, 67.34%T 1593.50cm-1, 54.46%T spom-1. 50- 702.64cm-1. 50d.16%T 692.96cm-1, 4.59%T 1650.46cm-1, 50.27%T 1274.05cm-1, 46.51%T 40- 636.49cm-1, 49.33%T 30- 20- 508.62cm1, 24.70%T 514.69cm-1. 26.58%T 10 94 4000 3500 3000 2500 2000 1500 1000 500 cm-1 Name Description Sample 2a 1 067 By Analyst Date Tuesday, July 07 2020 for

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

Refer to the table below. Answer the questions that follow. Express all your answers in four decimal places. Note: Do not round off the values of the slope and the y-intercept.Please keep your units consistent while calculating for the answers. Enclose in a box/highlight your final answers.  answer letter B

Today in grassfield chemistry class we are testing how far we can launch pumpkin seeds with chemical reactions. Based on calculations the true value should be 13.4 cm. Group 1 Group 2 Group 3 Trial 1 13.9 cm 13.5 cm 13.0cm Trial 2 13.0 cm 13.1cm 12.9cm Trial 3 17.0 cm 13.7cm 13.0 cm Which is the group with the most precise data? Which is the group with the most accurate data?

Please answer both questions.

11 11 10 10 9 - 0 9 8 8 7 T 7 6 6 5 1 5 ~Br 4 2 4 Alle 3 3 1 2 2 8 1 B 0

Please answer question number 2  correctly with the correct answer. there is a picture of an example of a ''Dimensional analysis Format' below. please write out all work showing the math in dimensional analysis format. (please show all work)   Question 3: What is the molar mass of each of the following compounds?   A. C6H12O6   B. NaHCO3

Please answer question 6 part A

how can i plot this data for concentration with depth?

Identify the longest length Group of answer choices 1.04 yd 86.87 cm 3.05 ft 1.05 m 38.0 in

Part 1: Color the 4 blocks of the table a unique shade. Be sure to label each block by its proper LETTER Grey Roya Blue Dark Turqu Turqu oise oise