CHBE 2100 Exam 2 Fall 2010

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I need answering these questions and using model 1 (Not honor class) (Not grading)

earson.com/?courseld=1 ← 2 S MISSED THIS? Read Section 4.2 (Page); Watch KCV 4.2, IWE 4.2. W Write a balanced chemical equation for each reaction. म X → #3 E D C C $ 4 R F V % 5 T G B ^ ▾ 6 Part A G Search or type URL Y Aqueous hydrogen chloride reacts with oxygen gas to form chlorine gas and liquid water. Express your answer as a chemical equation. Identify all of the phases in your answer. ² ΑΣΦ H Submit Part B A chemical reaction does not occur for this question. Part C Request Answer Solid iron(III) oxide reacts with hydrogen gas to form solid iron and liquid water. Express your answer as a chemical equation. Identify all of the phases in your answer. Submit Request Answer MacBook Pro ΑΣΦ 4 A chemical reaction does not occur for this question. & 7 N Nitrogen monoxide gas reacts with hydrogen gas to form ammonia gas and water vapor. Express your answer as a chemical equation. Identify all of the phases in your answer. U J ☆ * 00 B 8 M C w ? I ? K ( 9. < O ) - O L P A I' Review I…

Rosa was looking for patterns to help predict the products of chemical reactions. She recorded three similar decomposition reactions in the table. Reactants Products 2NACIO, 2NaCI + 302 302 + 2KCI 2KCIOз 2LICIO3 What products should she record in the last row of the table? O 2 LICI + 302 3LICI + 202 O 2 LiO + 3CI2 O 3LIO+ 2Cl2 Mark this and return Save and Exit Submit ntentViewers/AssessmentViewer/Activit.

I need help with these questions (Not honor class) (Not grading)

What would the balance reaction be?

Home Tools Lab Experiment #... x ... +) 玩, 1 | 2 97.4% Record your observations following each reaction including changes in color and state of matter. AGNO3 (Ag*) Pb(NO3)2 (Pb²*) Ca(NO3)2 (Ca²+) а e i NazCO3 Light orange solid white, cloudy solid white, cloudy, solid (СО2) b NaOH f dark brown solid stay clear, liquid white, cloudy solid (OH) g k NazSO4 stay clear, liquid white, cloudy, solid white, cloudy, solid (SO?) d NaCl 1 white, cloudy solid white, cloudy solid stay clear, liquid (CF) .... Remember to complete and submit this table to your instructor before the end of the class session.

I need help with these questions and using the model 1 (Not honor class) (Not grading)

please answer the questions 1 and 2 shown below, show work and answer correctly making sure that its right. answer quickly please. (this problem deals with acids and bases and you should include a calculator,)   1. H+= 1.10^-1 = PH   2.) Ph=4.93 = [H+]

Need help, CER stands for claim, evidence & reasoning

duction to MasteringChemistry - Attempt 1 duction to Vocabulary Questions Reset Help maple 1. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as pine cedar elm and pine mango 2. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers cedar include pine and elm elm 3. Deciduous trees lose their leaves seasonally and include trees such as mango and maple 4. Evergreens are plants that maintain their leaves in all seasons and include trees such as elm pine and cedar Submit Previous Answers Request Answer Introduction to Ma. fa トト」 トI fo fo ins prt sc 8% 8 9 10

For Expt. #5 - iron (III) chloride and sodium hydroxide, if a reaction occurred here, what is the integer coefficient of the reactant anion? Make sure your answer is an integer. Enter the value and nothing else. If there is no NIE, then write no NIE and nothing else.

A. REACTIONS OF HYDROCARBONS Three hydrocarbon samples were analyzed by various qualitative tests and the summary of their reactions is given in Table 1 below. Identify each unknown sample by matching the respective reaction profile with the given structures (A, B, or C). Table 1. Summary of Reactions of Hydrocarbon Samples Sample Brz in CCI4 KMNO, in NaOH AGNO3 in NH3 Fading of reddish- brown color Brown precipitates 1 No reaction Fading of reddish- brown color Brown precipitates Silver precipitates 3 Fading of reddish- No reaction No reaction brown color H3C `CH3 H,C CH3 А Sample Identity and Rationalization 1

Part B BH? Express your answer as a chemical formula. Fo ΑΣΦ 0 ? A chemical reaction does not occur for this question. Submit Request Answer

Based on this. What was the percentage error in the percentage of water in the sample, compared to pure MgSO4•7H2O?

com/document/d/1fmbZ8C0r5xkmCfMBaewOio5a_Qk-uMCald5KMc Byfvgr&esV A Done ting and Balancing Equations ☆ D O Format Tools Add-ons Help Last edit was seconds Normal text Arial 11 В I Equation: ZnS + AIP → Zn,P2 + Al,S, Balanced Equation Word Equation

Predict the products of the reaction below. That is, complete the right-hand side of the chemical equation. Be sure your equation is balanced. HI + NaOH → I Don't Know 1841 Submit 3 E 5 T 6 G 0-0 X S stv♫ 5 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Cer A all 9 zoom

Which of the following KT graphs corresponds to this chemical reaction: 4NH3(g) +50₂(g) = 4NO(g) + 6H₂O(l)? HomeworK 6 K Search 1 a b ll с Y 1 F7 ça H Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. ||| d IV Unanswered. 2 attempts left 1 & 7 T F8 U PRE F9 * 00 KA 8 1 || F10 ( 9 T O Fll K L K ) 0 1 F12 P III 4+ EPIC GAMES T Prt Sc ScrLk + 11 KA 1 Insert IV T Submit Delete Backspace Enter 7 Home 4

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help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

Use the information below to answer questions 1- 3. PCI,(g) 2 PCI;(g) + Cl2(8) PCI,(g) decomposes into PCI,(g) and Cl,(8) according to the equation above. A pure sample of PCI,(g) is placed in a rigid, evacuated 1.00 L container. The initial pressure of the PCI5(g) is 1.00 atm. The temperature is held constant until the PCI,(g) reaches equilibrium with its decomposition products. The figures below show the initial and equilibrium conditions of the system. PCI5 Potal = 1.00 atm PCI5, PCI3, and CI, Prstal = 1.40 atm Figure 1: Initial Figure 2: Equilibrium As the reaction progresses toward equilibrium, the rate of the forward reaction (A) increases until it becomes the same as the reverse reaction rate at equilibrium (B) stays constant before and after equilibrium is reached (C) decreases to become a constant nonzero rate at equilibrium (D) decreases to become zero at equilibrium If the decomposition reaction were to go to completion, the total pressure in the container would be (A) 1.4…

need help with the chemical reaction that took place

5 please help! *urgent* write as many accurate and relevant statements about the picture below. please write more than 5 correct descriptions/statements. please be as descriptive as possible.

Complete Table 6 using the written data and given information in Table 2 Part 1: Effect of Concentration The first part of the experiment is carried out at constant (room) temperature. Trial 1 is your baseline measurement. In Trials 2 and 3 you will change the concentration of Solution #1 or Solution #3, respectively. Table 2. Effect of reactant concentration on reaction rate Soln #2 0.0025 M Soln #1 0.10 M KI 20.0 mL Na₂S₂O3 10.0 mL 10.0 mL 10.0 mL 20.0 mL 10.0 mL Trial 1 2 3 1 Time (s) Trial (n) [1] 2 Table 6: Ion Concentrations in Reaction Mixture 3 Temp. (°C) I min 17 21°C 2 min 27 21°C 3 min 13 21°C C 0.040 mol/L [S₂O3²] [S₂08²] Water 0.0 mL 10.0 mL 10.0 mL Starch [ [ 3 drops 3 drops 3 drops Soln # 3 0.10 M (NH4)2S2O8 20.0 mL 20.0 mL 10.0 mL Total Vol. % Change in lon Concentration Relative to Trial 1 ] decreased by ] decreased by 50.0 mL 50.0 mL 50.0 mL % %

On occasion, we need to produce a dish, and while we have a pantry or stock-room, we are challenged by not having what we need to produce it. In short, we may not have a reactant we need for a chemical reaction. It will feel like we have been sabotaged! On rare occasions, faculty members have to produce reactants for their students to use. Students are similar to the judges on the show; they don't care about the sabotages or what the faculty member had to endure. However they expect reactants for their experiments to be available when they hit the lab.   If I (the faculty member) come out of the stockroom with the following basket of reactants: (There may be a few I do not use or need... sort-of like having broccoli in the basket for making bacon and eggs sunny side up....):   HCl HBr hydrogen peroxide 1-methyl-1cyclohexene (or methylcyclohexene) [It is a fresh bottle, still with its seal unbroken, distilled and stored under nitrogen.] water (H2O) a cylinder of chlorine gas a cylinder…

On occasion, we need to produce a dish, and while we have a pantry or stock-room, we are challenged by not having what we need to produce it. In short, we may not have a reactant we need for a chemical reaction. It will feel like we have been sabotaged! On rare occasions, faculty members have to produce reactants for their students to use. Students are similar to the judges on the show; they don't care about the sabotages or what the faculty member had to endure. However they expect reactants for their experiments to be available when they hit the lab.   If I (the faculty member) come out of the stockroom with the following basket of reactants: (There may be a few I do not use or need... sort-of like having broccoli in the basket for making bacon and eggs sunny side up....):   HCl HBr hydrogen peroxide 1-methyl-1cyclohexene (or methylcyclohexene) [It is a fresh bottle, still with its seal unbroken, distilled and stored under nitrogen.] water (H2O) a cylinder of chlorine gas a cylinder…

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A. REACTIONS OF HYDROCARBONS Three hydrocarbon samples were analyzed by various qualitative tests and the summary of their reactions is given in Table 1 below. Identify each unknown sample by matching the respective reaction profile with the given structures (A, B, or C). Table 1. Summary of Reactions of Hydrocarbon Samples   Sample Br2 in CCl4 KMnO4 in NaOH AgNO3 in NH3 1 Fading of reddish-brown color Brown precipitates No reaction 2 Fading of reddish-brown color Brown precipitates Silver precipitates 3 Fading of reddish-brown color No reaction No reaction           Sample Identity and Rationalization 1           2             3

The mass of Earth's atmosphere is 5.3 x 10 metric tons. The atmospheric abundance of helium is 0.7 ppm when expressed as a fraction by mass instead of by volume, as in Table 4-1. How many metric tons of helium are there in the atmosphere? How many moles of helium is this?

rmal text BIUA Arial 17.2 + . 1. . 2. | 3 | 4 in blue ink using complete sentences. 1. How is a physical change different from a chemical change? 2. How do you know a chemical reaction has happened? 3. Give an example of a chemical change. 4. How do you know this chemical reaction has taken place? 5. Name three different properties you can test before and after a chemical reaction to determine if a new substance was formed. 6. What does a catalyst do in a chemical reaction? 7. Are the number of atoms before and after a chemical reaction the same? Why? 8. What are two ways you can tell that the steel wool in the video underwent a chemical reaction? Support | Schoology Blog | PRIVACY POLI

/document/d/1KWoB0hrXolu7UEKbq4f8LBMHfpjHBRVU3qUzVI7K80U/edit Sample Work Format Tools Extensions Help + nt will $ 4 Normal text R f5 A % T 5 Calibri 12 13. The chemical equation for the decomposition of potassium chlorate (KCIO3 ) is 2 KCIO,(s) → 2 KCl(s) + 3 0₂(g) The molar masses of the elements in this equation are: K: 39.1 g/mol, Cl: 35.4 g/mol, O: 16.0 g/mol 담 ㅁ (b) How many moles of KCI are formed? Pathway: g of KCIO3 → mol KCIO3 → mol KCI Y If 30.6 g of potassium chlorate (KCIO3) reacts.. (a) How many moles of potassium chlorate(KCIO3) are there? Pathway: g of KCIO3 → mol KCIO3 7 + &1 BI U A 3 c) How many grams of KCI are formed? Pathway: g of KCIO3 → mol KCIO3 → mol KCI →g of KCI 18 U fg 8 I no 6 f10 © □ □E - †= = = = insert 9 5 $12 P prt scr L 7 64°F Mostly sunny G 1

can you please answer the question on the picture, make sure to show all of your work and POST PICTURES OF ALL OF YOUR WORK. Thank you.