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7:25 ◄ Search 1 Balance the following chemical equation (if necessary): 3c₂²- + SiCl4 (s) + H₂O(l) → H4SiO4(aq) + HCI (aq) Question 3 of 20 (s) HCI ( Reset 2 3 4 5 6 7 8 9 (1) H₂SiO4 H₂O (g) 5G 85 SICI4 Submit Tap here or pull up for additional resources (aq) 0 • x H₂O

If the BOD of a municipal wastewater at the end of 7 days is 60 mg/liter and the ultimate BOD is 85 mg/liter, then the rate constant is per day. (3 points) Select one: O a. 0.01748 O b. 0.1487 374 d 0.1748

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Refer to the oxygen concentration example in Sec. 1.7.2.(a) Given that nitrogen is lighter in weight than oxygen, is N2 concentration at 10 kmmore or less that 25% of the sea level N2 concentration?(b) What is the ratio of N2 concentration to O2 at 10 km? At sea level, the ratio is 4 to 1.

Question 7 of 10 Balance the following chemical equation (if necessary): C.H«(g) + O:(g) → CO:(g) + H:O(g) ロ+ 3 4 6. 7 8 9 ロ,ロロ。口。 (s) (1) (g) (aq) O2 CO. H:O C.H. Activ Go to Reset x H:O Delete 40F Rain sho nviDIa G-SYNC

T₂ H(T₂) = H(T) + [²C,dT T₁ T₂ A‚H°(T,) = A‚H°(T; ) + √„ª ACT (2C.6) Kirchhoff's law (2C.7a) P T₁ - Σ vcom - Σ vco AC = Σ VC - p,m Products Reactants p,m (2C.7b) 14. 14.1 14.2 14.3 Equation 2C.6 (prescribed textbook) can be written for both the reactants and the products. The difference between the resulting expressions is the Kirchhoff's law in 2C.7a (prescribed textbook). Write the reaction equation for the formation of cyclohexane, C6H12(e). Use equation 2C.7b (prescribed textbook) and the data in Resource section to calculate the difference of the molar heat capacities. [5 sig. fig.] Use Kirchhoff's law to calculate the standard enthalpy of formation of cyclohexane at 400 K from the data in Resource section. [5 sig. fig.]

The combustion of gasoline (octane) in a car engine can be represented by the following equation: 2C3H18(1) + 2502(g) --> 16CO2(g) +18H2O(g) a. What mass of oxygen is used up to burn a full tank of 36.00 kg of gasoline? b. Why might a vehicle that is calibrated to run perfectly at sea level run poorly at higher elevations? C. According to the Canadian Automobile Association, the average Canadian drives 20,000 km/yr. 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.

(58) A Ch - A fun A Ch A Lab 6 Ix G Whi G Whi G An G Mas G is Br G Part Ch 2 G acc G pen + Thir Map Goo G iron O File /home/chronos/u-89894221a1237b56532567cf04377caaald4971d/MyFiles/Downloads/Observation%20protocol.pdf Part II. Observing Physical and Chemical Changes A. In this section, a sample will be examined to see how it interacts with fire, in other words, whether this sample is flammable or not. Being flammable is a chemical property. You will also be checking to see how this sample responds to heat. Based on the observations, decide whether a physical and/or a chemical change has taken place. Obtain one piece of aluminum foil and place it on a wire gauze on the ring clamp. Carry out steps 1-5 in the order. Record your observations in the table. Allow the foil to cool before beginning the next procedure. Recycle the aluminum. 1. a) Place two drops of water on the foil. Bring a lit wood splint near (but not touching) the surface of the water sample to see if it catches fire or…

8:45 Convert 7.6 cm³ to m³ STARTING AMOUNT ADD FACTOR x( ) (1000) ³ 0.01 (0.1) ³ (0.01) ³ 0.076 (1) ³ 0.1 1 100 1000 Question 29 of 40 (100) ³ 7.6 x 10-4 7.6 7.6 x 10-6 X ANSWER m³ cm³ m cm Tap here or pull up for additional resources ..lLTE Submit RESET 5

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12:49 1 Send a chat Paragraph Styles Edit I 1 2 . 3 4 L..5 . 6.. I 7.. Problems from Periods 18-19: 1. Gasoline combustion engines run on the following balanced chemical reaction between octane (CH) and oxygen (0.): 20,H1 (g) + 250, (g) 16CO, (g) 18H,0 (g) A small car's gas tank holds 34292 grams (75.6 |bs) of gasoline. a. How many grams of the greenhouse gas CO, are produced by one tank of gasoline? Convert that number to pounds (Ibs). b. How many grams of O, are necessary to completely react with one tank of gasoline? CPacus

LTE+ 74% 5:38 PM KB/s 200406_Homework..mdahl_Chapter 04 - Saved Homework (Chapter 4) 2019. 4. 6 Example 4.1 Calculate the molarity of a solution preparcd by dissolving 11.5 g of solid NaOH in enough water to make 1.50 L of solution Example 4.2 Calculate the molarity of a solution prepared by dissolving 1.56g of gascous HCl in enough water make 26.8 mL of solution. Ехample 4.3 Give the concentration of each type of ion in the following solutions: (a) 0.50 M Co(NO:) (b) 1 M Fe(ClO4)3 Example 4.4 Calculate the number of moles of Cl ions in 1.75 L of 1.0 x 10-3 M ZnCl,. Ехample 4.5 Typical blood serum is about 0.14 M NaCl, What volume of blood contains 1.0 mg NaCl? Example 4.6 To analyze the alcohol content of certain wine, a chemist needs 1.00 L of an aqueous 0.200 MK CrO (potassium dichromate) solution. How much solid K CrO, must be weighed out to make this solution? Ехample 4.7 What volume of 16 M sulfuric acid must be used prepare 1.5 L of a 0.10 M H,SO, solution? Ехample 4.8 Using the…

8:53 Question 28 of 40 2 5 8 One of the fastest pitches ever thrown in Major League Baseball was by Aroldis Chapman and had a velocity of 105.1 miles/hour. How many seconds did it take this pitch to travel the 60 feet and 6 inches from the pitcher's mound to home plate? (1 mile = 5280 feet) 1 4 7 +/- Tap here or pull up for additional resources S 3 6 9 O ..lLTE Submit XU x 100

00 3. 2. FI Question 18 of 20 Write a balanced chemical equation based on the following description: sulfur dioxide gas and oxygen gas react to produce sulfur trioxide gas 2+ 6 7 8 口666666( 4. 5. 6. O O O O O OO (g) (aq) (1) SD Sr Reset •x H2O Delete e to search a 81°F EX |画 144 9) 6. R.

Sent this question twice and Its gotten rejected, because it says something about honour code. this question is a completion question and its ungraded. Its only for completion. Please kindly work this solution.

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.

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LIFE SCIENCES/GRADE 10 9 FET MDUGUST 2024 ESTION 3 Read the extract below and answer the questions that follow Carolus Linnaeus established a hierarchical classification system of grouping similar organisms together. He grouped organisms from broad groups called Kingdoms down to the smallest groups called species. By making use of his system, a lion is fully classified as follows; Animalia, Chordata, Mammalia, Camivore, Felidae, panthera e 3.1.1 According to Linnaeus' system, which class does the lion belong to? 3.1.2 The lion's scientific or binomial name, panthera leo, has been written incorrectly Rewrite it correctly 3.1.3 Why is it necessary for organisms to have scientific names? The table below shows the results of an investigation which measured the average global carbon dioxide levels in the atmosphere over a five-year period (1) (2) (2) (5) Year Carbon dioxide level (parts per million) 2004 376.0 2005 377,0 2006 379,5 2007 381,0 2008 383,5 3.2.1 Draw a line graph to show the…

O (81) Drake - In The Bible (Official x Answered: Drag the text element X Chapter 3 Competency 5 G molar mass of fe - Google Search x + -> A cloud.scorm.com/ScormEnginelnterface/defaultui/player/legacy.html?configuration=CbMtix7R173giv8Jlq2qNte5-N4X7iO1ARnDq98KvBHVj4XKlo1rLn9XYyotbblQjPsc2h... * I Apps © Google MyMasteryPath co Welcome to LSU M.. P MasteringBiology E FRENCH ALEKS – Adaptive L. Pt Periodic Table - Pta. Other bookmarks E Reading list Chapter 3 Competency 5 POWERED BY THE RUSTICI EN PREVIOUS NEXT CLOSE ITEM RETURN TO LMS Page 8 of 35 Your Learning Points 4 Osiagwu, Chiemeka K Iron metal reacts with elemental sulfur to produce iron (III) sulfide. What mass of iron is required to react with 13. 61 g of sulfur? (A) 79. 99 g Check your balanced reaction 2 Fe(s) + 3 S(s) -> Fe,S, (s) (В) 53. 33 g (C) 61. 33 g (D) 15. 8 g (E) 35. 55 g 9:27 PM O Type here to search A 4) 9/25/2021 1O

Cesium chloride is used to prepare dense solutions required for isolating cellular components with a centrifuge. A 40.0 wt% solution of CsCl (FM 168.36) has a density of 1.43 g/mL. (a) Find the molarity of CsCl. (b) How many milliliters of the concentrated solution should be diluted to 500 mL to make 0.100 M CsCl?

(7) KMNO4, NaOH

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(58) A Ch - A fun A Ch A Lab O Ix G Whi G Whi G An a G Mas G is BI G Part Ch 2 O Thir Map G acc G pen G iron + Goo O File /home/chronos/u-89894221a1237b56532567cf04377caaald4971d/MyFiles/Downloads/Observation%20protocol.pdf Procedure Watch the video (https://mediaspace.minnstate.edu/media/1_51tdhwv5). Meanwhile record the observations in the following tables on pages 2-4 in pen. Part I. Observing Physical Properties of Elements and Compounds in vials. Record the formula, physical state, and color in the tables below. 1. Three elements Element Formula Physical State Color hydrogen H2 gas colorless carbon copper iron 2. Two elements assigned to you based on the last digit of your MCTC ID. For example, if someone has an ID of 00123456, this student will be working on Oz and S of Data Set #6. Element Formula Physical State Color 3. Seven compounds Compound Formula Physical State Color carbon dioxide hen dieulfide 2:05

How do I do this, I have so many problems that need me to do this and I don't get it.