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M Apple Google Disney ESPN Yahoo! Biomedical Careers Program Apple iCloud Yahoo Images Bing Google Wikipedia COWLv2 |... b D2L ☆ & G For the reaction r r Submit Answer prod03-cnow-owl.cengagenow.com Fe(s) + 2HCI(aq)→→→FeCl₂(s) + H₂(g) AH° = -7.4 kJ and AS° = 107.9 J/K D2L D2L D2L Facebook Twitter LinkedIn Use the References to access important values if needed for this question. The Weather Channel Yelp TripAdvisor b D2L M G C The maximum amount of work that could be done when 2.08 moles of Fe(s) react at 286 K, 1 atm is Assume that AH° and ASº are independent of temperature. Retry Entire Group 4 more group attempts remaining kj. +88 M

3 E D 20 F3 [Review Topics] [References] Use the References to access important values if needed for th a. When 52.70 and 44.375 are divided, the answer should be based on 4 Enter the answer with the correct number of digits. 52.70 44.375= 1.188 An error has been détected in your answer. Check for typos, miscalculations etc. before submitting your answer. C b. When 44.375 is subtracted from 52.70, the answer should be based on 2 decimal place(s). Enter the answer with the correct number of digits. 52.70 44.375= 8.32 Submit Answer $ 4 888 R F Retry Entire Group V % 5 Cengage Learning Cengage Technical Support F5 T G 6 4 more group attempts remaining B MacBook Air F6 Y H & 7 F7 U N * 00 8 J DII FB - M ( 9 K F9 O ) [ V 1 F12 11 21 ? 1

Interface/acellus_engine.html?ClassID=845449353 How many moles of Al are present in 1 mole of Al₂S3 ? moles Al Ernational Academy of Science. All Rights Reserved. Ri 5 A 6 Moles Al O 2 & 7 PrtScn 8 Enter Home

There is one incorrect answer here. Can you help me figure out which one?

Cou X A Ch 6 x C Sear X * Sear X Sear x b > Hov x2 Con x Con X b Sear X y! cher X M Inbc X M Inbc X + Vent X 8 https://www.saplinglearning.com/ibiscms/mod/flcn/view.php?id3D15033867 + Sapling Learning macmillan learning Ch 6 Homework Jason Bauer , Sapling Learning > Ventura College - Chem V30 (31510) - Spring21 - ALAWDI > Activities and Due Dates > Ch 6 Homework E 20 of 24 Questions O Assignment Score: O Resources O Hint 68.3% Check Answer O 16 Question 100% x2 Question 20 of 24 > 1 of 5 Attempts Correct How many moles of CaCl2 are in 7.76 x 1024 formula units? O 17 Question 100% x2 1 of 5 Attempts Correct 7.76 x 1024 formula units = mol O 18 Question 100% x2 2 of 5 Attempts Correct O 19 Question 1 of 5 Attempts 100% x2 Correct 20 Question 0% O of 5 Attempts 21 Question 0% x2 O of 5 Attempts © 2011-2021 Sapling Learning, Inc. about us careers privacy policy terms of use contact us help 1:42 PM P Type here to search 99+ 2/18/2021 19

Please give information about these chemicals.

nerican Politics X #0 Module 2 | OWLv2 m/takeAssignment/takeCovalentActivity.do?locator=assignment-take Submit Answer Q Search Use the References to access important values if needed for this question. A sample of oxygen gas at a pressure of 0.756 atm and a temperature of 109°C, occupies a volume of 510. mL. If the gas is heated at constant pressure until its volume is 673 mL, the temperature of the gas sample will be °C. OWLv2 | Online teaching and lear X + Retry Entire Group LDE 9 more group attempts remaining NO W 200 Pr Previous Next> deleta SID 5:21 5/14/20

A. FERMENTATION OF CANE SUGAR1. In a 500 mL Florence flask, place 50 gms of brown cane sugar and 1 gram ofdisodium phosphate.2. Dissolve 1 teaspoon of yeast in 15 mL of water. Add this to the sugar in the flasktogether with 150 mL water. Stir until the sugar is dissolved.3. Close the flask with a rubber stopper provided with a delivery tube so that theevolved gas will bubble through a solution of clear limewater.4. HAVE THE SET – UP CHECKED BY YOUR INSTRUCTOR.5. Keep the set – up inside the locker for 5 – 6 days at room temperature.Fermentation Set – up: ________________________________Write the equation for the hydrolysis of cane sugar _____________________________Write the equation for the fermentation of the simple sugars to alcohol __________6. At the end of the fermentation period, what is formed in the flask containinglimewater? _________________________________________________________________Write the equation for its formation ____________________________________________ C.…

yout References Mailings Review View rt Endnote t Footnote ✓ w Notes es 5 Search Researcher Absorbance 5 4.5 4 3.5 2.5 2 1.5 1 0.5 0 Research 0 Insert Citation 1 1. Construct a standard curve in Excel by plotting concentration (in ppm) on your x-ax (unitless) on your y-axis for your known solutions. Label the axes on the graph and provi title. See Figure 5 in the lab handout for an example. Use a linear trendline to generate a data. Label the graph with the equation and the R2 value. Insert your labeled graph in the Help Manage Sources Style: [APA 2 Bibliography Citations & Bibliography Sciwheel Nitrate Standard Curve 3 4 ty=0.8842x-0.8191 R²=0.9509 Q..**. Concentration Insert Caption 5 6 Insert Table of Figure Update Table Cross-reference Captions ww 7 2. Using the equation from your graph, determine the nitrate concentration (in ppm) in each of samples. Text Predictions: On Accessibility: Investigate O Search 8509 FORGE *

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PART 3- LABORATORY EQUIPMENT EQUIPMENT NAME FUNCTION To hold test tubes. Attaches to a retort stand to support glassware being heated. To pour liquid from a large container into a small container. To provide a flame during an experiment. ones To light the Bunsen burner. To attach test tubes to a retort stand. To clean substances out of a test tube. To hold a hot crucible or flask. To hold a hot test tube. To place on the lab bench to prevent burning or to use with ring clamp. To transfer small amounts of liquid. To grow bacteria or contain small experiments. To hold liquids. To measure liquids. To contain experiments (a stopper can be used to close the flask). To hold a hot beaker. To perform an experiment with a different substance in each well. To hold chemicals and perform experiments in. To scoop and transfer small amounts of substances, To stir during experiments that involve mixing or dissolving.

A sample of rainwater was collected from four separate locations across theMetroplex. Each sample was measured once by two separate methods for the presence ofsulfate. Determine whether the two methods are equivalent with respect to giving thesame answer for [SO42-].

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yout References 2 v Font ₂x²A - A V Mailings Review View Help A A Aa AEE ALT Y f3 5 United States) Text Predictions: On O 14 101 === Paragraph Search (Alt+Q) 4.All are correct V Accessibility: Good to go 15 5 1.To the polarity of water and that organic compounds are nonpolar. f6 D Normal Organic compounds tend not to mix with water. What is the reason for this chemical characteristic of organic compounds with water? 2.Because water forms a hydrogen bond and hydrocarbons do not have polarity for this, unless they have an oxygen in the chain. 3.Some alkanes can mix with water if they have a carbonyl or hydroxyl group. No Spacing f7 40 Styles hp 18 Heading 1 19 0 0 f10 F17 5 F12 Find Replac Select- Editing 82°F Mos

1:39 PM Fri Apr 30 100% AA A testnavclient.psonsvc.net G Cannot MY eCLASS .. B Homepage -. O Schoolnet TestNav Favorites Review ABookmark Gonzalez, Marianna RETAKE S2 Chem Unit 9 Common Unit Assessment / 5 of 10 II Pause O Help - Use the information to answer the following question. Ammonia (NH3) readily dissolves in water to yield a basic solution. NH3 + H20 NH4+ + OH How is this substance classified? O A. Arrhenius Base Exhibits B. Arrhenius Acid C. Bronsted-Lowry Acid D. Bronsted-Lowry Base

20,18,2,4,15,15,10 Using these data, construct a 80% confidence interval for the average net change in a student's score after completing the course. Assume the population is approximately normal.  Construct the 80% confidence interval. Round your answer to one decimal place.