Chemistry concepts and calculations

need help guys Barium reacts with a polyatomic ion to form a compound with the g

need help guys Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2. What would be the most likely formula for the compound formed between sodiu…

need help guys just the answer How many moles of pyridine (C5H5N) are contained

need help guys just the answer How many moles of pyridine (C5H5N) are contained in 3. 13 g of pyridine? Question 23 What is the empirical formula of a compound that contains 27. 0…

need help on #5 and #6. Thanks (6 pts) Metals are oxidized into metal cations as

need help on #5 and #6. Thanks (6 pts) Metals are oxidized into metal cations as they lose electrons and their charge increases. Thus metals are reducing agents. Metal cations are…

need help on #8 show work and why ? please prebiem. Report the amount heal nuede

need help on #8 show work and why ? please prebiem. Report the amount heal nueded to The tempetonre find the heat by 200 groms of wel 40oc to tormice 200c ow much heat energy is n…

need help on 15, 16 Vinyl Polymers 14. On the basis of chemical structure, predi

need help on 15, 16 Vinyl Polymers 14. On the basis of chemical structure, predict the result of free radical copolymerization of the following monomer pairs: (a) acrylamide and a…

need help on chem homework and I am confused Elemental S reacts with O2 to form

need help on chem homework and I am confused Elemental S reacts with O2 to form SO3 according to the reaction 2S + 3O2 rightarrow 2SO3 as depicted here.(Figure 1) How many O2 mole…

need help on number 4 and 5 Chrome File Edit View History Bookmarks People Windo

need help on number 4 and 5 Chrome File Edit View History Bookmarks People Window Help U.S. 68% 1, Mon Feb 15 6:06 PM a E Homework: Conservative FxTest 1 Sumin WebAssign xMInbox (…

need help on the X\'S.. You need to create 5 serial Dilutions of Creatinine stan

need help on the X'S.. You need to create 5 serial Dilutions of Creatinine standards with a total volume of 1 mL each. You are provided with a 25 mg/dL stock Creatinine solution. …

need help on the driver program!!! #ifndef SCHEDULE_H #define SCHEDULE_H #includ

need help on the driver program!!! #ifndef SCHEDULE_H #define SCHEDULE_H #include "appointment.h" #include <iostream> using std::ostream; const int SCH_ENTRIES = 10; class s…

need help on these A 245-L barrel of white wine has an initial free SO2 concentr

need help on these A 245-L barrel of white wine has an initial free SO2 concentration of 25 ppm and a pH of 3.80. How much SO2 (in grams) should be added to the barrel to result i…

need help please Potassium reacts with wster more quickly tun calcium reacts wit

need help please Potassium reacts with wster more quickly tun calcium reacts with water b) The electrical conductivity of aluminanm is greater than copper d) The solubility of NaC…

need help please show all steps to get to the answer and explain. 78% ? Chapter

need help please show all steps to get to the answer and explain. 78% ? Chapter 8-Homework 04/09/18 This is a Chemical Equation question/It is worth 2 polints/You have 8 of 10 att…

need help plz Or32332) HWsz 5.63.3 6. 212 021 5.0 points Consider the following

need help plz Or32332) HWsz 5.63.3 6. 212 021 5.0 points Consider the following reaction How mudi CaCN2 is noded to ptodu, 2.6 moles of N113 if the percent yield is 65.8%? 1.9.57 …

need help plz! Complete the program so that the user enters in the height & widt

need help plz! Complete the program so that the user enters in the height & width of the rectangle and the resulting area & perimeter are printed out. Make sure the calcul…

need help pronto incorrect estion 12 of 22 Map J Which type of glassware should

need help pronto incorrect estion 12 of 22 Map J Which type of glassware should you use to make the solution (assuming that the accuracy of the concentration is important)? 250 mL…

need help reading in this txt file into structure arrays. I have an idea on how

need help reading in this txt file into structure arrays. I have an idea on how to do this however there are more fields then the ones I actually need and don't know how to exclud…

need help solving these 3. The molar mass and ionization constant of an unknown

need help solving these 3. The molar mass and ionization constant of an unknown weak monoprotic acid Concentration of standardized NaOH titrant mol/L Mass concentration of unknown…

need help thanks QUESTION1 1.25 polr Substances A B, and C can all act as oxidiz

need help thanks QUESTION1 1.25 polr Substances A B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and Cis red. In ns in which they participate, the…

need help thanks Secure! https://bbcsueastbay.edu/ultralcoursesL40984.Veyoutine

need help thanks Secure! https://bbcsueastbay.edu/ultralcoursesL40984.Veyoutine Question Completion Status: A 3.2478 g sample of an unknown mixture of salts containing chloride pr…

need help thanks! Experiment 7 Advance Study Assignment: Analysis of an Unknown

need help thanks! Experiment 7 Advance Study Assignment: Analysis of an Unknown Chloride Ag'ions and Cr ions can react to form Agcl. Is silver chloride a solid, liquid, or gas? Wh…

need help trying to figure out how to make this work please thank you

need help trying to figure out how to make this work please thank you <html lang="en">    <head>        <meta charset="utf-8">        <title>multiplication…

need help with #5 please, thank you! 3. A copper wire, 1.00 m long has a diamete

need help with #5 please, thank you! 3. A copper wire, 1.00 m long has a diameter of 0.750 mm. When an unknown weight is suspended from the wire it stretches 0.200 mm. What was th…

need help with 1.10 please, thanks! What volume of boiling water is needed to di

need help with 1.10 please, thanks! What volume of boiling water is needed to dissolve the 1.0 g of benzoic add? How much benzoic acid will crystallize after cooling to 20 Degree …

need help with 2 programs ask the user for the text file name, ask the user the

need help with 2 programs ask the user for the text file name, ask the user the search-string-20 charaters or fewer, read the input file, searching for the search string while rea…

need help with all of the following suggest some units for all of the variables

need help with all of the following suggest some units for all of the variables Beer's Law (Hint: Absorbance is unitless) in The variable in the Beer's Law equation that is depend…

need help with both Consider two countries: A and B. Assume that both countries

need help with both Consider two countries: A and B. Assume that both countries are exactly similar to the year 2000. At the beginning of the year 2000, both countries decide to c…

need help with both please 11) A 5.00 ml pressure remairn A) 2.50 ml B) 4.55 ml

need help with both please 11) A 5.00 ml pressure remairn A) 2.50 ml B) 4.55 ml C) 5.00 mL D) 5.50 mL e) 10.0 mL Section: 10.5 Charles's Law: Volume-Temperature Relationships mL v…

need help with both questions. please explain. 96 4. What is the reduction half-

need help with both questions. please explain. 96 4. What is the reduction half-reaction for the following overall cell reaction? NF"(aq) + 2 Ag(s) Ni(s) + 2 Ag(a) Answer (A) (B) …

need help with how it affected the equilibrium both HCl and DI H2O? Write the ne

need help with how it affected the equilibrium both HCl and DI H2O? Write the net ionic equation for the CoCl2 lon/I Cocla] Ion equilibrium Write the Keg equation for the CoC I lo…

need help with how it affected the equilibrium both HCl and DI H2O? Write the ne

need help with how it affected the equilibrium both HCl and DI H2O? Write the net ionic equation for the CoCl2 lon/I Cocla] Ion equilibrium Write the Keg equation for the CoC I lo…

need help with last 3 parts of question 1 thanks ly explain the pro e performing

need help with last 3 parts of question 1 thanks ly explain the pro e performing this experiment. blem a student might encounter if the following procedural changes were made () I…

need help with my data/analysis and conclusion UNSATURATED HYDROCARBU To draw st

need help with my data/analysis and conclusion UNSATURATED HYDROCARBU To draw structures of uraai NTRODUCTION has a have alkeves wen as uniple carbon-carboE bonds, but they stili …

need help with number 1 part a and b PRELAB PROBLEMS EXPERIMENT UTA-549 Section

need help with number 1 part a and b PRELAB PROBLEMS EXPERIMENT UTA-549 Section 1. Use the half eeactions in Table to construct a fully balanced redov reaction between (show your …

need help with ochem lab questions, please explain. thanks During the fermentati

need help with ochem lab questions, please explain. thanks During the fermentation reaction it is important to prevent air from entering the reaction chamber. Why? Compare and con…

need help with part b of question I already know the answer to the first one A s

need help with part b of question I already know the answer to the first one A sample of gas in a balloon has an initial temperature of 44 C and a volume of 1500 L . If the temper…

need help with quantitative analysis problems Exam A o.2121g Sample of an argani

need help with quantitative analysis problems Exam A o.2121g Sample of an arganic campound was bunted in a Stream of oxygen,and the Coz preduced was celleceel in a sclution of bar…

need help with question 1 and 2. Pre-Lab Questions (Use a separate sheet of pape

need help with question 1 and 2. Pre-Lab Questions (Use a separate sheet of paper to ansuver the following quertions.) 1. Another version of the iodine clock reaction involves rea…

need help with question 1 and 2. Pre-Lab Questions (Use a separate sheet of pape

need help with question 1 and 2. Pre-Lab Questions (Use a separate sheet of paper to ansuver the following quertions.) 1. Another version of the iodine clock reaction involves rea…

need help with question 1-3? 1. A pure porphyrin sample was analyzed and found t

need help with question 1-3? 1. A pure porphyrin sample was analyzed and found to consist of 78 67% C, 4.95% H, 7 65% 0, and 73% Determine the empirical formula of the porphyrin a…

need help with question 6 please UNKNOWN SAMPLE Number: (same as Experiment 3, d

need help with question 6 please UNKNOWN SAMPLE Number: (same as Experiment 3, density determination of a metal) TRIAL 1 TRIAL 2 1) Mass of Styrofoam Cups (nearest 0.01 g) 4.28% 4…

need help with rotateRight function!!! #include \"DataGroup.h\" template

need help with rotateRight function!!! #include "DataGroup.h" template<class ItemType> DataGroup<ItemType>::DataGroup() { } // end default constructor template<clas…

need help with the calculations for this. density of a liquid. tia Report Sheet

need help with the calculations for this. density of a liquid. tia Report Sheet Name Date Section Vessel Mass of vessel with water Mass of empty vessel Mass of water Volume of wat…

need help with the calculations for this. density of a liquid. tia Report Sheet

need help with the calculations for this. density of a liquid. tia Report Sheet Name Date Section Vessel Mass of vessel with water Mass of empty vessel Mass of water Volume of wat…

need help with the following question, really have no clue where to start. (Matl

need help with the following question, really have no clue where to start. (Matlab) You may wish to get started on this set in advance of your session. 1. Suppose that you start a…

need help with the pre lab. Thanks Sooo much is determined. Strong acid and stro

need help with the pre lab. Thanks Sooo much is determined. Strong acid and strong base are added to each buffer in a series of steps and the pH is determined after each addition.…

need help with these 2 questions. please show the steps you took. 12. Mg (s) + 2

need help with these 2 questions. please show the steps you took. 12. Mg (s) + 2 HCl (aq) MgCl2 (aq) + H2 (g) Find the amount of work done and change in internal energy, E at 25°C…

need help with these QUESTION 10 (5 pts.) According to the following reaction, w

need help with these QUESTION 10 (5 pts.) According to the following reaction, what mass of PbCl, can form from 235 mL of 0.110 M KCI solution? Assume that there is excess Pb(NO.)…

need help with these questions. 1.Explain recursion and give an example in C++.

need help with these questions. 1.Explain recursion and give an example in C++. 2.Compare a binary search and a sequential search. 3.Compare two different sorting algorithms. 4.Ex…

need help with these three. please explain. Answer l. Which of the following sta

need help with these three. please explain. Answer l. Which of the following statements is not true? (A) The reverse of a spontaneous reaction is always nonspontaneoas (B) A spont…

need help with these two problems. thanks CSUEB Blackboard D MYCSUES SalarMavi A

need help with these two problems. thanks CSUEB Blackboard D MYCSUES SalarMavi Additional Time Used: 22 hours, 24 minutes, 43 seconds y Question Completion Status (4 pts.) Determi…