[15 minutes] Predict the chemical formula for the ionic compound that will form when the elements listed below combine as ions, and then name the compound. A. Al and S B. Kand N C. Sr and O D. Al and Cl E. Na and F 6/24/24 WILBERTH A. NARVAEZ | ELEMENTARY CHEMISTRY 19 19

Name: Lyna Ammi Date: 1/26/2022 Section: 02L Data Report Sheet: The Reaction of Methyl Violet with NaOH: A Kinetic Study 2. What is the value of k?

Correct answers given in second picture!!! Please just show me how to get them

MISSED THIS? Read Section 15.5 (Pages 650 - 656) . Part A Which of these two reactions would you expect to have the smaller orientation factor? a. O(g) + N2(g) → NO(g) + N(g) b. NO(g) + Cl2(g) → NOCI(g) + Cl(g) Complete the sentences to explain your answer. Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Help symmetrical Unlike in Yeaction (b), both reactants in reaction (a) are This makes NO(g) + Cl2 (g) → NOCI(g) + Cl(g) orientation in reaction (a) important. asymmetrical The reaction with the smaller orientation factor is expected to be O(g) + N2(g) → NO(g) + N(g) less more Submit Request Answer Provide Feedback

Explain how  the rate of reaction rate in pressure cookers was increased by including these subtopics: 1.  Explain with collision theory and energy potential diagrams: how the rate of reaction is affected by temperature, surface area, nature of reactants, concentration, etc. by using collision theory? 2l Discuss whether the reaction is endothermic or exothermic (use Hess’s Law, Le Châtelier’s Principle, or Kinetic Molecular Theory to explain in increasing rate of reaction and relevance by including all 4 required subtopics )

Use the References to access important values if needed for this question. Write the Ksp expression for the sparingly soluble compound calcium phosphate, Ca3 (PO4)2. (If either the numerator or denominator is 1, please enter 1.) Ksp Submit Answer Retry Entire Group 9 more group attempts remaining Previous Next

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Analytical Chemistry Laboratory Experiment: Determination of Iron Content in Water Samples by Visible Spectroscopy

A certain amount of insecticide is washed out into the lake on June 1 , leading into concentration of 5.0 x 10-7 g/mL. What is the concentration of the insecticide in water on June 1 of the following year? The half-life of an insecticide in water is 0.0154 year. Solve with complete solution.

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so that means route a is preferrable in a small lab and route b is preferred in a chemical plant?

The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The half-life of phosphorus-32 is 14.3 days. If you begin with 40.4 mg of this isotope, what mass remains after 22.3 days have passed?_____mg 42.0 mL sample of a 0.476 M aqueous hydrofluoric acid solution is titrated with a 0.305 M aqueous barium hydroxide solution. What is the pH after 19.9 mL of base have been added? Ka for HF is 7.2 × 10^-4 pH =____

Corrected True/False: Indicate whether each statement is true or false by circling the word true or the word false. If false, correct the statement to make it true in the space provided. 10. A physical change usually involves a greater enthalpy change than does a chemical change. True / False 11. In endothermic reactions the products have more kinetic energy than the reactants. True / False 12. The process of nuclear decay is a third order reaction. True / False 13. The rate-determining step is the slowest step in a reaction mechanism. True / False

Document1 - Word Search (Alt+Q) References Mailings Review View Help Write the corresponding letters to the following descriptions. Each proposal can be associated with 0 or 1 match and each letter is not necessarily associated with a proposal. a. [Ar] 4s? b. 1s 2s2p63s23p3 c. 1s2s2p2 d. [Ne] 3s23ps e. [Ar] 4s23d10 f. 1s22s! g. None of those answers 1. I am a halogen 2. I am a transition metal 3. I am alkaline 4. I have exactly 2 single electrons 5. I am the smallest of the atoms presented here 6. I have exactly 3 valence electrons 7.I am the most paramagnetic of the atoms presented here 8. I am the copper 9.I am isoelectronic with Ti2+ IF cessibility: Good to go IA 16 SIS

how do you this? how to enter it in the calculator?

Beaker Volume of KSCN No solution 1 0.50 mL 9.50 mL Part I: Data for Calibration Graph Accurate Concentration of potassium thiocyanate, KSCN stock solution: 0.001 M 0.2 M Fe(NO3)3- Iron(III)nitrate solution: 0.5M Volume of HNO3 solution 0.2 M Volume of 0.2 M Fe(NO3)3 solution 10.00 mL Absorbance 0.037 2 1.00 mL 9.00 mL 10.00 mL 3 2.00 mL 8.00 mL 10.00 mL 4 3.00 mL 7.00 mL 10.00 mL 0.122 0.313 0.547 5 4.00 mL 6.00 mL 10.00 mL 6 5.00 mL 5.00 mL 10.00 mL 0.791 0.868

5. Diisobutylaluminum hydride (pictured below) reacts with nitrile A to form product B, which no longer contains a nitrile. While we have not yet seen this reaction in this course, you will be able to answer the following questions given the information below. -A. CN 1. H B 2. H30* A What change(s) in the IR spectrum are consistent with the disappearance of A as the reaction progresses? a. b. The IR spectrum and molecular formula of B are shown below. Use arrows to point out important IR stretches and label each arrow with the type of bond or functional group present. You may find some helpful information on page 7. CH120 L00 4000 3000 200 1000 HAVENUNBERI l c. Propose the structure of compound B.