Metallurgy Questions and Answers

5 5 missing apostrophes and explain them below I couldnt believe we received an invitation to the Smiths holiday party They had the most elaborate parties with fireworks gourmet food and live music It wasn t really a childrens event but my parents agreed to let me attend There werent going to be a lot of kids there but I didn t want to miss it Its the best party of the year and I am so excited to go APOSTROPHE ERROR 1 Type here Correction Type here APOSTROPHE ERROR 2 Type here Correction Type here APOSTROPHE ERROR 3 Type here Correction Type here APOSTROPHE FRROR 4 Tyne here

Let k and n be integers with 0 k n Find a formula for n n 1 7 ik i 0 in terms of k and n Partial credit for a correct statement without proc

14 The empirical formula of a certain hydrocarbon is CH When 0 125 moles of this hydrocarbon is completely burned with excess oxygen it is observed that 8 40 Liters of CO gas are produced at STP What is the molecular formula of the unknown hydrocarbon a CH h C H d C3H6 e C4H8 c C H3

Calculate the value of AHO kJ for the following reaction using the listed mochemical equations 2NO2 g N2O4 g N2 g 2O2 g 2NO2 g N2 g 2O2 g N2O4 g AHO kJ 67 8kJ AHO kJ 9 67kJ

For the following statements 1 Cast iron is purest form of commercial iron 2 The temperature in reduction of zinc oxide using coke is higher than Copper oxide 3 Copper is used for galvanising iron 4 The metal which is liquid at room temperature is refined by zone refining Choose the correct sequence where T represents true and F represent false Q TTFF O TTFT C FTFF nagpanne vague

8 80 8 809 8 8 8 81 Question 2 If you subtract 5 745 from 8 79 what would the correct answer be to the correct number of sig figs 3 1 3 04 be to the correct number of sig figs 3 045 5 pts

13 Organisms in the phylum Firmicutes are all A Cocci B Eukaryotic C Gram positive D Pathogenic E Rod shaped 14 Non competitive inhibitors of enzymes attach to A ATP B The active site of an enzyme C The allosteric site of an enzyme D The product E The substrate

Potential Energy Reaction Coordinate C D energy A B Answer the questions using the graph above 1 Is the above reaction endothermic or exothermic 2 What letter represents the potential energy of the reactants 3 What letter represents the potential energy of the products 4 What letter represents the heat of the reaction delta H C D 5 What letter represents the activation energy of the forward reaction 6 What letter represents the activation energy of the reverse reaction 7 What letter represents the potential energy of the activated complex 8 Is the reverse reaction endothermic or exothermic 9 If a catalyst were added what letter s would change

5 Describe the process of B cell activation as described in class Please assume that any other needed cells are already activated

10 The Krebs cycle will produce ATP molecules for each glucose used A 2 B 4 C 6 D 10 E 38 11 The kind of reaction that breaks down amylose into glucose is called A Anabolic B Dehydration synthesis C Endergonic D Hydrolysis E Plasmolysis

2 What are three things that can be done to improve the health of gut microbiome Briefly describe why each is helpful

Which of the following is a soap O O C18H37COONa C17H35C6H4SO3Na OCH3COONa

a What is the difference between the two models the induced fit model or the lock and key model for explaining the interaction between an enzyme or protein and a substrate b Which model is superior in explaining our modern view of the enzyme substrate interaction Briefly support your answer

A gas mixture contains 50 mol H and 50 1 00 L samples of this gas mixture are mixed with variable volumes of O2 at 0 C and 1 atm A spark is introduced to allow the mixture to undergo complete combustion The final volume is measured at 0 C and 1 atm Which graph best depicts the final volume as a function of the volume of added O A B C Final Volurne L 2 00 1 75 1 50 1 00 0 75 0 50 0 25 0 00 Final Volume L 0 00 2 00 4 75 1 50 1 25 0 75 0 50 0 25 0 00 0 00 0 25 0 50 0 75 Volume O added L 0 25 0 50 0 75 ndried L 1 00 D Final Volume L 2 00 1 75 1 50 1 25 1 00 0 75 0 50 0 25 0 00 0 00 2 00 1 75 1 50 Final Volume L 1 25 1 00 0 75 050 0 25 0 00 0 85 0 50 075 Volume O added L 0 00 1 00 0 25 0 50 0 75 Volume O added L 1 00

3 Draw the structure of aspartame and identify the peptide bond s

6 What is the difference between the lock and key and induced fit models