Metallurgy Questions and Answers

options The total energy released or absorbed by a reaction is a sum of the individual step reactions that occurred Chemical reactions are all added up for a AH Chemical reactions are all added up for a AH Not enough information to answer this question Question 7 Select the correct answer below that correctly describes what a Bronsted Lowery Acid Base Reaction is options An acid base reaction where one compound increases the amount of H or OH in solution An acid base reaction where one compound is donating an H and one atom is accepting an H An acid base reaction where one compound is donating an OH and one atom is accepting an OH An acid base reaction where one compound is donating electrons and another compound is accepting electron Question 8 Calculate the pH of a solution with a concentration of 0 02M H O options 1 70 1 70 10 30 10 30 Question 9 What does a pH of 3 00 mean about a solution options The solution is a strong acid The solution is a strong base The solution is mostly acidic The solution is mostly basic

1 Inference Why does Aven feel so close to Spaghetti the llama TYPE HERE 2 Namesake This chapter is the namesake of the novel In this chapter we hear Aven explain why she is an insignificant event in the life of a cactus What do you think Aven means by this TYPE HERE 3 Characterization At the end of this chapter Aven tries to tell herself that it shouldn t matter what people think of her but she realizes it does matter to her What do you think she s feeling inside Why

Listen A catalyst changes the reaction rate by lowering the equilibrium constant of the reaction activation energy of the reaction entropy of the reaction enthalpy of the reaction

Plot Why does Aven s father need to move to Arizona TYPE HERE 2 Explicit Details What is Aven s soccer argument for not moving to Arizona TYPE HERE 3 Figurative Language How does the description of Mom s hair help you picture her TYPE HERE 4 Inference Why does Aven give in to her Dad s plea TYPE HERE

Relate why composers of oratorios had such a difficult time O Composers had a difficult time Interpreting the text Composers had a difficult time organizing the acting scenery and costumes O Composers had a difficult time performing oratorios in the church Composers had a difficult time because the number of musicians was enormou

How has Madison made it clear in Federalist Paper 10 that abolishing liberty is foolishness O Comparing liberty with fire because abolishing connotes destruction O Comparing liberty with air which is essential to animal life in spite of it being a destructive agency O Comparing liberty with air because liberty means being free Because liberty is essential to political life

Question 3 Points 2 What are the two central ideas that build upon each other through the course of the text in the essay Society and Solitude by Ralph Waldo Emerson Criticism against solitude and impact on nature Expression of silence and acceptance of solitude Expression of solitude and the impact of society

Which would have the largest effect on a neighboring bond angle two single bonds one double bond and a single bond O two double bonds Otwo lone pairs of electrons one lone pair of electrons and a double bond

Look at the chemical formulas for the minerals chalcopyrite and pyrite Which of the following explains why chalcopyrite is softer and shows signs of tarnishing Both are sulfides but chalcopyrite has copper which makes it softer and more likely to tarnish Both are sulfides but pyrite has copper which makes it softer and more likely to tarnish Both are sulfides but chalcopyrite has sodium which makes it softer and more likely to tarnish Both are sulfides but pyrite has sodium which makes it softer and more likely to tarnish

When iron metal corrodes it O acts as an oxidizing agent undergoes oxidation undergoes reduction O acts as a cathode

Explicit Details Where does Aven s mom suggest that Connor go Why does Aven ask him instead TYPE HERE 2 Description What did you learn about Tourette Syndrome during this chapter TYPE HERE 3 Characterization What argument does Connor make about why his condition is worse than Aven s TYPE HERE

22222 1 Setting The narrator takes us on a tour of Stagecoach Pass in this chapter Why do you think the author did this TYPE HERE 2 Explicit Details What does Aven tell us about Henry the ice cream shop worker TYPE HERE 3 Connotation Does the word senile have a positive or negative connotation How do you know TYPE HERE 4 Inference What do you think is in the shed that Aven finds Defend your answer TYPE HERE

Characterization What makes Aven unique TYPE HERE 2 Characterization How do Aven s parents handle her disability What kind of character traits would you infer they have TYPE HERE 3 Plot When does Aven realize that not having arms could be something other people think is odd TYPE HERE 4 Plot Why does Aven get in trouble at school What are some stories that Aven comes up with to explain this to people TYPE HERE

SO2 reacts with H S as follows 2H2S SO2 3S 2H O When 7 50 g of H S reacts with 12 75 g of SO2 which statement is true A 3 4 grams of H S remains when reaction is complete B 0 36 grams of SO remains when reaction is complete OC 0 98 grams of H S remains when reaction is complete D 5 3 grams of SO2 remains when reaction is complete

MISSED THIS Watch KCV 7 3 IWE 7 2 IWE 7 3 Read Section 7 3 You can click on the Review link to access the section in your e Text Balance each chemical equation Part B NH4 3PO4 aq CaCl aq Ca3 PO4 2 s NH4Cl aq Express your answer as a chemical equation including phases 0 A O

2 Convert 350 mL to A liter is a unit of volume a L b nL

1 Setting Describe the setting of Stagecoach Pass How might this new climate affect Aven TYPE HERE 2 Explicit Details What does Gary tell the family about Joe Cavanaugh TYPE HERE 3 Plot Why does Aven go inside the museum TYPE HERE 4 Inference Why do you think that the Cavanaugh s picture is missing in the museum TYPE HERE

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

3 A rigid container holds 0 341 atm of O and 8 265 atm of N What is the total pressure a 8 606 atm b 7 924 atm c 2 818 atm d 24 24 atm

2 When he opened his shop on March 9 Edwin Torinos put 75 in change in his cash register drawer At the end of the day the cash register readings showed that 3 812 34 had been taken in that 213 88 had been paid out in cash refunds and that Edwin had taken out 50 for his personal use The cash on hand in the drawer at the end of the day was 3 624 75 Was the cash short or over How much

h Describe one possible grand prize turn What can you say about the values of the two spins 6 5 7 4 8 3 9 2 1

Chemistry Describe the production of FeSi 15 using smelting including key process parameters and reaction

How does adding a catalyst affect the rate of a reaction It slows down the reaction by decreasing the activation energy It slows down the reaction by increasing activation energy It speeds up the reaction by decreasing the activation energy It speeds up the reaction by increasing activation energy Next

In the laboratory you dissolve 24 0 g of potassium carbonate in a volumetric flask and add water to a total volume of 250 mL What is the molarity of the solution What is the concentration of the potassium cation M What is the concentration of the carbonate anion M M

Iron metal reacts with a copper sulfate solution CuSO4 aq Which of the following would result in the highest rate of reaction Iron powder in 1 M CuSO4 aq A solid piece of iron in 2 M CuSO4 aq Iron powder in 2 M CuSO4 aq O A solid piece of iron in 1 M CuSO4 aq Review

Pick the odd one out O Ethanol Hexane Ooil Carbon tetrachloride

What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved O dilute O saturated O supersaturated O concentrated O unsaturated

Calculate the AH of the reaction 2 H g O g 2 H O 1 Bond Energy Bond Energy kJ mol kJ mol 436 163 414 418 389 946 464 222 368 565 431 364 297 347 611 837 305 615 891 360 736 Bond H H H C H N H O H S H F H CI H Br H I C C C C C C C N C N C N C O C O C O C CI 799 in CO 1072 339 Bond N N N N N N N O N O N F N CI N Br N I 0 0 0 0 0 F O CI 0 1 F F CI F CI CI 590 272 200 243 159 142 498 190 203 234 159 253 243 Bond Br F Br Cl Br Br I CI 1 Br 1 1 Si H Si Si Si C S O Si O S O Si Cl S S S F S CI S Br S S Bond Energy kJ mol 237 218 193 208 175 151 323 226 301 265 368 523 464 418 327 253 218 266

Use the Refere any significant figures are there in each of the followi 0 00 00 0 100 90 0

What market structure best describes McDonald s origins

2 3 sentences discuss examples of good and bad business ethics in the movie

Rose gold is an alloy mixed metal of gold and copper metals In order to prepare it molten metals of each are mixed together If 335g of copper at 1 180 C is mixed with 212g of gold at 1 510 C at what temperature in C will they reach equilibrium

Temperature is related to the average energy while the energy stored in chemical bonds is a form of energy

Aqueous copper II sulfate CuSO4 reacts with solid iron to form aqueous iron II sulfate FeSO and solid copper Write a balanced chemical equation for this reaction m

A piece of metal was found on the side of the road The metal was put on a balance and found to have a mass of 79 10 g The volume was determined by placing the metal into a 27 00 ml column of oil which was displaced to 34 00 mL What was the volume of the unknown metal in mL What was the Density of this metal What was this metal O Volume 7 00 ml Density 11 3 g mL Metal lead Volume 4 00 ml Density 2 7 g ml Metal aluminum Volume 7 00 ml Density 19 1 g ml Metal uranium Volume 8 00 ml Density 7 14 g ml Metal zinc