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< 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

Part A If 2.0 x 10-4 moles of S20 in 50 mL solution is consumed in 3 minutes and 17 seconds, what is the rate of consumption of S20 ? Express the rate in mol per liter-second to two significant digits. M 2.128 10 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining < Return to Assignment Provide Feedback

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

26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50

Please let me know which 2 answers are correct, an explanation including evidence

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

Could you help me with question one please?

101 Chem101 b Search results for 'Using the infor x B Brainly.com - For students. By stu X G Using the information in the tab + -> A app.101edu.co I Apps y! email b bartleby B Brainly.com - For st. = Google Docs M gmail O eagle adv H school email S canvas m Monthly | My Classes 101 Chem101 general E Reading list Question 19 of 44 Submit Using the information in the table, the rate law for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) is Rate [A], (M) [B], (M) (M/s) A) Rate = k[A][B]³ 1.25 0.100 0.850 B) Rate = k[B] C) Rate = k[A][B] 1.25 0.300 2.55 D) Rate = k[A][B]² 3.75 0.200 5.10 2:47 PM P Type here to search 67°F Clear 7/19/2021 近

3500 nm isn't an option.

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

2:53 1 Question 43 of 45 Submit A student needs to run 3.2 km to get to school. If the student can run 5.5 mi/hr , how many hours will it take them to get to school? STARTING AMOUNT ADD FACTOR ANSWER RESET -( ) %3D 18 1 mi/hr 0.36 km 1.609 mi 5.5 hr 60 min 0.94 3.2 0.58 0.6214 35 Tap here or pull up for additional resources

The gold content of an ore is being measured. The results of these analyses are:  Content (ppt) 20.065 19.999 21.054 20.533 20.088 20.112 What is the average value, standard deviation and confidence interval for this set of data?Show each step of the calculation. Using your results calculate the %accuracy and %precision (relative standard deviation) if the true value is 20.045%.

Please use the correct significant digits (3), if needed use scientific notation.

Boxes 1-4 box 1 answer choices: 0, 3, 1, 2, or 4. box 2 answer choices: 2, 1, 3, 0, or 4. box 3 answer choices: 10.7, 0.241. 0.482, 0.804, 5.36, 0.121, 3.21, or 1.61. Box 4 answer choices: L^2/mol^2•s, L^3/mol^3•s, L/mol•s, 1/s, or L^4/mol^4•s

Question #3: Fill in the number or 1/[S] in the table below. Round to the nearest hundredth. Remember to enter two digits after the decimal point even if the number is 0 (ex. 2.40). Rate 1/ [S] 0.13 0.200 0.28 0.100 X 0.48 0.05 X 0.64 0.033 0.73 0.025 0.77 0.020 X XX

* Question Completion Status: QUESTION 3 A If 20.0 Cal make an ounce, how many ounces of formula should a baby drink per day if the energy need per day is 1.50 x 10³ Cal? Express answer to the correct number of significant figures. 75.0 x 10E3 ebapps~2Fblackboard~2Fcontent~2Flist Content.jsp%3Fcourse_id%3D_514... QUESTION 4 A 9.86 g sample of iron metal was heated in water to 85°C. Then, it was dropped into a beaker containing 240.0 g of H₂O at 28.5°C. Assuming that the water gained all the heat lost by the iron, what is the final temperature of the H₂O and Fe? If 756 cal of heat were added to 64.8 g of Al at 32.5 °C, what is the final temperature of the aluminum? 10

The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high tide and low tide occurring two times per day. The tides can measure over approximately 50.0 ft in height. At the Hopewell Rocks at Hopewell Cape, on a specific day height increase was recorded as a rate of 6.08 feet per hour . What is the rate in meters per second ?

Pls help with question

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Home Conte Meas Take G Three Pears Maste G 4.988 Ta X G Three G Three D Spani -> A dmacc.blackboard.com/webapps/assessment/take/launch.jsp?course_assessment_id%= 402371 1&course_id%3 94346 18&ne pps Work for students... O New Tab M Gmail O YouTube A Maps G7 Translate CHM * Question Completion Status: QUESTION 2 Three separate lab groups determined the density of a metal to be 12.5 g/mL, 13.1 g/mL and 14.8 g/mL. Use these values to calculate the average density among the measurements. O A. 13.5 g/mL O B. 30.5 g/mL ОС. 13.1 g/mL O D. 10.1 g/mL QUESTION 3 Three senarate lah grouns determined the density of a metal to be 12.5 g/mL, 13.1 g/mL and 14.8 g/mL. If the accepted de