What is the chemistry involved in sunscreens? What is the process of making sunscreens? Chemicals use in spf? What/why are chemicals bad in SPF Step by step chemistry process of spf
Q: Help balance.
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A: Let's analyze each change:An endothermic chemical reaction between two liquids results in gaseous…
Q: Provide the major products, including steps
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Q: Question 25 Predict the FINAL (?) product (or a mixture of products) for the following synthetic…
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Q: 3. Provide a mechanism for Boc-protection. H2N. Дон Вос20 R R ΟΗ
A: Step 1 The amine attacks a carbonyl site on di-tert-butyl dicarbonate (Boc2O) resulting in…
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A: The two compounds in the image are constitutional (structural) isomers. So the answer is option…
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Q: Please answer chem
A: Step 1:Alkene produces epoxide (cyclic ether) when reacts with m-CPBA (meta-chloroperoxybenzoic…
Q: Question 12 Predict the FINAL (?) product (or a mixture of products) for the following synthetic…
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Q: Draw the starting structure that would yield this product under these conditions. N N H > Select to…
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Q: 1. Compare ... M 2. Standard ... 3. AS surroundi... 4. AG° = AH°... 5. AG: Pre... 1req 6. AG:…
A: Step 1:First, we need to find the standard free energy change of the reaction, ΔG°. We can do this…
Q: A tank contains 330 gallons of oil. This is the equivalent of 4.83×1010 J of energy. How many kcal…
A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…
Q: a. Draw structures and give sum formulae or names, whichever is appropriate, of the following…
A: (i) [Ni(OH₂)₅(NO₂)]Br - Pentaaquanitritonickel(II) bromideNaming:"Pentaaqua": This indicates the…
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A: In conclusion, by analyzing the formal charges and octet rule adherence, we can determine the…
Q: Question 8 Please predict the product for each of the following reactions. Make sure to clearly…
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Q: Calculate the solubility (in M) of O2 in the blood of a scuba diver at a depth of 100 feet, where…
A: We can calculate the solubility using the the formula for Henry's Law:Sg=kPgWhere:Sg is the…
Q: Question 2 Which set of Newman projections represents correct the most stable and the least stable…
A: Because it's most stable conformer is arranged in anti form in which both CH3 and C2H5 are opposite…
Q: Determine whether the following are aromatic, nonaromatic or antiaromatic.
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Q: find the mechanism step by step
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Q: (a) A voltaic cell is constructed as follows: Zn | Zn2+ | H+ | H2 The half-cell reactions are:…
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Q: The corrected cell potential for the following galvanic cell was determined to be (1.62x10^0) V.…
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Q: What is the solubility of SrCO₃ in water? (Ksp of SrCO₃ is 5.6 × 10⁻¹⁰)
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Q: 16.36 For the reaction 2A+B+C+D+ 2E, data for a run with [A], 800 mmol/L and [B] = 2.00 mmol/L are…
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Q: Based on the reaction and its DH° CI -OH rxn, why is this reaction exothermic? OH AH-110.6 kJ/mole…
A: This statement implies that the products have weaker bonds than the reactants, resulting in the loss…
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A: To solve this problem, we'll use the ideal gas law, which states:PV=nRTWhere:- P is the pressure…
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Q: Draw the structure(s) of the major organic product(s), including counterions, of the following…
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Q: Name: Formula of a Hydrate Lab Chemistry Date: Per._ 6. The following data were obtained when a…
A: 6)Given mass of empty test tube is 18.42g.Mass of test tube and hydrate(before heating) is…
Q: Can you write down retrosynthesis ( RSA)and show pilar dont provide hnadwriting solution...
A: Step 1: Bromobenzene's Retrosynthesis : * Target Molecule : C6H5Br (bromobenzene). * Functional…
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A: Certainly, let's draw the structure of (2R, 5R) - 2 - bromo-5-methylheptanal:1. **Base Chain:** The…
Q: Complete solutions need all solve
A: The preparation of standard solutions through the direct method involves calculating the required…
Q: A gas occupies 15.5 L at 0°C and 879 torr. What temperature would be required to increase the…
A: Given:Volume = 15.5LInitial temperature T1 = 0°CInitial pressure P1 = 879 torrFinal pressure P2 =…
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A: Step 1: The cell potential for the given cell as per the data given is calculated as
Q: RCO3H 1) Mg Br 2) CO₂ b) 3) H c) CO₂H 1) LiAlH4 2) H3O+ d) SOCI2 CO₂H (CH3)2CuLi CI 1) LIAI(OR)H, f)…
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A: Step 1: Information: This is the example of Alpha substituted reaction going to carbanion or…
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Q: Consider the following system at equilibrium where K = 1.80×102 and AH° = 10.4 kJ/mol at 698 K. 2 HI…
A: First Question: 1.) TRUE. The enthalpy change (ΔH) of the reaction is positive, which indicates that…
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Q: Draw a Newman projection of the anti conformation of 1,2-dichloroethane.
A: Approach to solving the question: Detailed explanation: Examples: Key references:
Q: Most common amines (RNH2) exhibit pKa values between 35 and 45. R represents the rest of the…
A: The presence of a cyano group (-CN) introduces significant electron withdrawal due to its strong…
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A: An electron's state is described by four quantum numbers:Principal quantum number (n): Defines the…
Q: What is the chemistry of how spf blocks uv rays from the sun Please please please answer as fast as…
A: Sunscreen works by shielding the skin from the harmful effects of ultraviolet (UV) radiation, which…
Q: Organic Chemistry problem. Please help solve. Provide reasonable product structure for reaction…
A: This reaction is cyanohydrin formation.In this reaction, the cyano adds to the ketone also forming…
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A: Step 1:Carboxylic Acids.1) Draw the general structure of a carboxylic acid Step 2:2) T/F -…
Q: Please Write Step by Step Answer Otherwise i give DISLIKE !!
A: Step 1: The rules of IUPAC nomenclature are(i) Longest chain rule: The chain containing the…
Q: Predict the products of the following reactions. Show stereochemistry when applicable.
A: The second reaction, the addition may occur via syn or anti pathway. So both cases are possible
Q: Give the major organic product or missing starting material for the following reactions. Do…
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Q: Predict the products of the following reactions. Show stereochemistry when applicable.
A: When bromine water (aqueous solution of bromine, Br2) reacts with an alkene, a bromine addition…
Q: Name type of bond a) X (Imks) ...Ch.volent..bond........ 3. b) Y Dolive...bond........ (1mks) When…
A: 3)a)Explanation of the Observation:When crystals of hydrated iron (II) sulfate, FeSO4.7H2O, are left…
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- _4. Preservatives that are usually found in cured meats, bacon, ham, corned beef and hot dogs. A. Benzoates C. Sorbates В. Nitrates D. Acids 5. A type of additive that stabilizes foods through moisture control. A. Emulsifiers C. Humectants B. Flavor Enhancer D. Antioxidants 6. Additives that are usually powders added to baking mixtures which react chemically to release carbon dioxide. A. Raising Agents B. Thickeners C. Humectants D. AntioxidantsWhere does ammonia separate from water?What are key things for hydrocooler method of food commodities?
- What are the different biological functions of nitric oxide (NO)? How does NO affect how the drug nitroglycerin works in the body? How does nitric oxide work in muscle relaxation?-Which substance has the greatest tendency to participate in a chemical reaction with small chain alcohol in an acidified chemical environment? a. Substance A b. Substance B c. Substance C d. Substance D e. Substance E -Which substance is expected to turn blue litmus paper into red color? a. Substance A b. Substance B c. Substance C d. Substance D e. Substance E -The physical properties of the substances are influenced by intermolecular forces of attraction. Which substance(s) are predominantly influenced by the intermolecular association of the molecules via hydrogen bonding? a.Substance A only b. Substance A and C c. Substance A, B, and C d.Substance A, B, C, and D -Aside from London dispersion forces, which substance do you expect dipole interactions to be effective? a. Substance A and B b. Substance B and D c. Substance A and C d. Substance B and E -Which substance will exhibit the lowest melting point? a. Substance A b. Substance B c. Substance C d. Substance D e. Substance E…What is the purpose of Safety Data Sheets? Why are these important when handling common food service chemicals? What information/components are generally included? How do Safety Data Sheets vary?
- The DIAGRAM below contains FIVE PURE SUBSTANCES with the molecular componentshown per substance. Using this DIAGRAM answer the questions. 1. Which substance CANNOT decolorize bromine water? Substance ASubstance BSubstance CSubstance D 2. Which substance is expected to turn blue litmus paper into red color? Substance ASubstance BSubstance CSubstance D 3. Which substance has the greatest tendency to participate in a chemicalreaction with small chain alcohol in an acidified chemical environment? Substance ASubstance BSubstance DSubstance E 4. Which substance has the highest solubility to hexadecane? Substance ASubstance CSubstance DSubstance E 5. Which substances can react with potassium borohydride, converting theproduct into alkene alcohol (assuming complete reaction)? Substance A and BSubstance B and DSubstance C and DSubstance D and E 6. Aside from London dispersion forces, which substance do you expect dipoleinteractions to be effective? Substance A and BSubstance B and…What are preservatives? What food products can be consumed with preservatives and additives? What are the adverse effects of consuming food product with food preservatives and additives? pls answer the 3 questions above :>23. A researcher wanted to use myoglobin as a substitute for hemoglobin to carry oxygen in a human body. Would this be successful? Why or why not? Use the graph below to help you answer your question. Fractional Saturation D.B 0.6 0.4 0.2 Mb 20 40 Hb 60 po, (tor) 80 100 3
- limentary rock C. Chemical sedimentary rock 6. What type of sedimentary rock is fossiliferous limestone. A. Clastic sedimentary rock B. Organic sedimentary rock C. Chemical sedimentary rockWhich one of the following cannot be used as a deodorant? 2. a. CaCo3 b. Zn(C17H35CO0)2 C. Al(OH)3 d. Zno Which one of the following is not a suitable disinfectant against corona virus? a. Ethanol solution b. NaAl(OH)4 solution c. Phenol solution d. NaCIO solution Which one of the following phrases is not true? a. Acidic media do not affect soapless soaps b. Synthetic detergents are stronger than soaps C. Synthetic detergents cannot be used in hard water d. Alkylbentene sulphonates are synthetic detergents Dettol is: a. Antifertility. b. Antis ptic. C. Antipyretic. d. Antibiotic. Which one of the following is not an antacid? a. Mg(OH)2 b. CH3COONa c. Milk d. NaHCO3QUESTION 31 Strong group cohesiveness can be a leadership A. Substitute B. Neutralizer C. Bolth A and B above D. None of above QUESTION 32 One of the reasons that make PFP (Pay-for-performance) plans fail is that employees do not believe that their performance will be rewarded. According to the Expectancy Theory of Motivation, this is due to........ A. Low Valence B. Weak Instrumentality link C. Weak Expectancy link D. None of Above QUESTION 33 Performance management/Compensation are organizational practices based on.... A. Maslow's Need Theory B. Goal Setting Theory C. Social Learning Theory D. Equity theory E. Expectancy theory