chemistry

Leu-enkephalin, a substance that binds to opioid receptors, consists of a peptide with the sequence YGGFL. Part 1 of 3 How many amide bonds join the amino acids in the peptide chain? Part 2 of 3 Give the name of the N -terminal amino acid. Part 3 of 3 Give the name of the C-terminal…

Give the mechanism to generate nitronium ion and explain the role of sulfuric acid. Generation of Nitronium Ion Mechanism Question: 1. Give the mechanism to generate nitronium ion and explain the role of sulfuric acid. Answer: 🔷 Step 1: Protonation of Nitric Acid Sulfuric acid (H2SO4), being a much stronger acid than nitric acid (HNO3),…

Describe the behavior of water molecules from the interaction with electromagnetic radiation in the UV, IR, microwave, and radio regions. Choose the best option below. Behavior of Water Molecules with EM Radiation Question: Describe the behavior of water molecules from the interaction with electromagnetic radiation in the UV, IR, Microwave, and Radio regions. Choose between…

What can you conclude from a student who reported an Rf value of 1.2? Mark all that apply. Conclusion from a Student Reporting Rf = 1.2 Rf Value Analysis in Chromatography Question: What can you conclude from a student who reported an Rf value of 1.2? Understanding Rf: The Rf value (retardation factor) is defined…

The reaction 2NO2 + F2 2NO2F is first order with respect to both NO2 and F2. what is the rate law of the reaction? Rate Law for 2NO₂ + F₂ → 2NO₂F Rate Law of a First-Order Reaction Question: The reaction 2NO₂ + F₂ → 2NO₂F is first order with respect to both NO₂ and…

Determine the type of each chemical equation describing a precipitation reaction. Choose…Net ionic equationFull molecular equationFull ionic equation Choose…Net ionic equationFull molecular equationFull ionic equation Choose…Net ionic equationFull molecular equationFull ionic equationDetermine the type of each chemical equation describing a precipitation reaction. Choose…Net ionic equationFull molecular equationFull ionic equation Choose…Net ionic equationFull molecular equationFull ionic…

Express your answer as a chemical equation Cl2(g) NaOH(aq)→NaClO3(aq) NaCl(aq) H2O(l) Identify all of the phases in your answer. Balanced Disproportionation Reaction: Cl₂ + NaOH Part D: Chemical Equation Balancing Question: Balance the chemical equation: Cl₂(g) + NaOH(aq) → NaClO₃(aq) + NaCl(aq) + H₂O(l) Express your answer as a chemical equation. Identify all of the…

Express your answer as a chemical equation. Identity all of the phases in your answer.CO2(g) CaSiO3(s) H2O(l)→SiO2(s) Ca(HCO3)2(aq) Balanced Chemical Equation with Phases – CaSiO₃ Weathering Chemistry Question and Answer Question: Write a balanced chemical equation for the reaction: CO₂(g) + CaSiO₃(s) + H₂O(l) → SiO₂(s) + Ca(HCO₃)₂(aq) Include all phases in your answer. Step…

You are told to analyze the purity of your product with TLC. Which of the following TLC plates would indicate a pure product? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer, a A TLC plate where the product lane has one spot with an Rf value…

Which parts, Q , R or S , contain carbon? ( a ) Q and R ( b ) Q and S ( c ) R and S ( d ) Q , R and S Answer Identifying Carbon-Containing Parts in Chemistry 🧪 How to Identify Carbon-Containing Parts in a Substance 🔬 Understanding Carbon Presence…