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Chrome File Edit View History Bookmarks Profiles Tab Window Help Purple/Black Iridescent- KPM X G wilmington postal code - Goo X O Dealers - Nic www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IvdWKW_BBZZ161 O CHEMICAL REACTIONS Predicting precipitation Complete the table below by deciding whether a precipitate forms when aqueous formula in the last column. Does a precipitate form when A and B empirical formula of solution A solution B precipitate are mixed? iron(II) chloride potassium hydroxide O yes no iron(II) iodide cadmium acetate O yes O no barium nitrate potassium acetate O yes O no

POTASSIUM PERMANGANATE AND SODIUM HYDROXIDE Repeat procedure 3 using 6M sodium hydroxide instead of 6M sulfuric acid. Allow the solution to stand for about 15 minutes and write an observation of any changes. Observations: Balanced chemical equation: 2KMnO 4(aq) + 3NaHSO 3(aq) + NaOH (aq) → 2H2O(l) + K2SO 4(aq) + 2MnO 2(s) + 2Na2SO 4(aq) What substance is responsible for the color change?

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Phthalein Dye Test Chemical Reaction Balanced equation

| ax NME /Chemical%20Reactions%20Asgn%202-5.pdf 9 Employee Home r4c Covenant Health Ca... Outlook.com - Free... S Birthday party politi. G what does it mea 1 / 2 100% Chemical Reactions-Write Neat and Balanced Reactions from Word Equations You need to submit one sheet of paper (not this one), that is very neat, with a fully balanced reaction for these 6 reactions Remember to include proper states. 1. solid potassium metal reacts with oxygen gas to produce solid potassium oxide. 2. solid potassium chlorate decomposes into oxygen gas and solid potassium chloride. 3. solid aluminum oxide is decomposed into solid aluminum and oxygen gas. 4. aqueous cobalt(III) nitrate reacts with solid zinc to produce aqueous zinc nitrate and solid cobalt.

3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industria strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume o vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas produced (mL.) vs. Time (s) for Volcano #1 Time Volume of gas (s) produced (ml) 60 E 50 10 20 30 25 8 40 38 46 30 20 Volume of gas produced (ml) 40 50 50 60 52 of 10 53 20 40 60 80 Time (s) Volcano # 2 Volume of gas Volume of gas produced…

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1. What is the mEq of silver nitrate? 170 0.0170 0.170 17.0 2. How much (mL) silver nitrate is required for the standardization? 4.995 49.950 49.590 45.990 * MW of silver nitrate = 170 g/mol * Please take note that Im looking for the silver nitrate

Hello, can I get help with Part B & Part C. Thank you

s.com/course.html?courseld%3D15828855&HeplD353706194671Of71a192e43597b01c6e0#10301 Principles of Chemistry I (Chem 1107-327) signments <09 - Pre-Lab 9.11 Pre-Lab Methane burns in oxygen to produce CO2 and H2O. CH:(9) + 202(g)→2H»O(1) +CO2(g) Part A If 0.55 L of gaseous CH, is bumed at STP, what volume of O, is required for complete combustion? Hνα ΑΣφ Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining 40 DELL

16. The combustion of gasoline (octane) in a car engine can be represented by the following equation: 2C3H18(1) + 2502(g) a. What mass of oxygen is used up to burn a full tank of 36.00 kg of gasoline? Text --> 16CO2(g) +18H20(g) b. Why might a vehicle that is calibrated to run perfectly at sea level run poorly at higher elevations? Text Тext According to the Canadian Automobile Association, the average Canadian drives 20,000 km/yr. C. Assuming that distance, how many more kg of carbon dioxide are added to the atmosphere each year by a Toyota Tacoma (fuel economy of 12.8 L/100 km) than a Toyota Prius (4.52 L/100 km)? The density of gasoline is 0.719 kg/L.

Need help to calculate for percentage % recovery

The following data was obtained in NASA chemical lab.Temperature (C) Solubility (x 10-21)10 1715 2120 3825 4130 4935 5340 5945 6950 7855 8660 95 Find: the equation Solubility [x10-21] = f(Temperature [K]). Provide the graph withcorresponding labels.

What is the role of sodium and chloride ions in this experiment

QUESTION 24 In the experiment "Beer-Lambert's Law and Spectrophotometry", you prepared a calibration plot similar to the one pictured below. What is the approximate concentration of a solution whose absorbance is 0.35? Calibration Plot 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0. 0.01 0.02 0.03 0.04 0.05 Save A Click Save and Submit to save and submit. Click Save All Answers to save all wnswers. Absorbance

12 of 19 <. I Review | Constants | Periodic Table Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 4.00×10-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray? Express your answer with the appropriate units. » View Available Hint(s) moles of luminol = Value Units %3D

I want the names of the programs in which I can draw the method with the instrument like in the picture

Aktiv Chemistry → C < + app.101edu.co b Answered: Complete the balanX M Your Chemistry answer is ready X 1 Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, write NR after the reaction arrow. Be sure to include the proper phases for all species within the reaction. ₁ + ■ Reset + Cu U 2 3 Cu₂SO (aq) + Na PO₂(aq) - 2 □2 ☐ 3 OC ) 4 NR Time's Up! P a Amazon.com: LINSY HOME Cor X a Amazon.com: bulletin board fo X LO 5 05 + 0²+ 07 6 7 8 9 0 = (s) O 3+ Na 4+ • x H₂O ☐9 口。 (1) (g) (aq) S Delete Update: Submit

1. Aluminum sulfate can be made by the following reaction: 2AlCl3(aq)+3 H2SO4(aq)➡Al(SO4)3(aq)+6HCl(aq). It is quit soluble in water, so to isolate it the solution has to be evaporated to dryness. This drives off the volatile HCl, but the residual solid has to be heated to a little over 200 celsius to drive off the water. In one experiment, 25.0 g of AlCl3 were mixed with 30.0 g of H2SO4. Eventually, 28.46 g of pure Al2(SO4)3 were isolated. Calculate the percentage yield. 2. The potassium salt of benzoic acid, potassium benzoate (KC7H5O2), can be made by the action of potassium permanganate on toluene (C7H8) as follows: C7H8+ KMnO4➡ KC7H5O2+ 2MnO2+ KOH+ H2O. If the yield of potassium benzoate cannot realistically be expected to be more tha 71%, what is the minimum number of grams of toluene needed to achieve this yield while producing 11.5g of potassium benzoate? 3. A chemist set up a synthesis of phosphorus trichloride by mixing 12.0g P with 35.0g Cl2 and obatained 42.2 g of PCl3.…

Because of the risk of lead poisoning, the exposure of children to lead-based paint is a significant public health concern. Thefirst step in the quantitative analysis of lead in dried paint chips is to dissolve the sample. Corl evaluated several dissolution techniques.24 In this study, samples of paint were collected and pulverized with a Pyrex mortar and pestle. Replicate portions of the powdered paint were then taken foranalysis. Results for an unknown paint sample and for a standard reference material, in which dissolution wasaccomplished by a 4–6-h digestion with HNO3 on a hot plate, are shown in the following table. (a) Determine the overall variance, the variance due to the method, and the variance due to sampling. (b) What percentage of the overall variance is due to sampling? (c) How might the variance due to sampling be decreased?

D²1 Quizzes - Spring 2023 SPE XQ Ch 12-14, 18 Public speakin x с app.101edu.co < + 1 Ch 12-14, 18 Public speakin x + Balance the following chemical equation (if necessary): V₂O(s) + HCl(aq) → VOCI (s) + H₂O(1) 2 04- Reset 0 ♡ 2 3 VOCI ( ) 4 D2L Quiz 10-12 - Spring 2023 C X Time's Up! H₂O □ 5 n 0₂ ☐3 04 05 06 л O) 6 + 2+ 7 07 V.O. 2 5 ल = (s) (1) y google - Yahoo Search Rest X ³+ 4+ 8 9 ☐8 • x H₂O 0 (g) (aq) HCI 口。 Delete Aktiv Chemistry G + Update: Submit

suppose your absent minded lab partner grabbed medium porosity filter paper instead of the fine porosity paper and you noticed cloudiness in your filtrate. will the reported concentration of limiting reactant solution be greater than, less than, or equal to the true concentration of limiting reactant solution? Na3PO4 and BaCl2 are the solutions used