for question 2 and 5 please and thank you. Name: Pedram harimiPart A: Knowledge and Understanding (/10)6.SCH4U Unit 5 Electrochemistry1.4.The electrode at which oxidation occurs is called thea. oxidizing agentb.cathodereducing agentc.d. anode2. Which of the following is an oxidation-reduction reaction?a. Na → Nat + 1eb. 2 SO₂ + O2 - 2 SO3c. -C. N₂O4 → 2 NO₂d. 2 e + F₂ → 2 F3. Which element is oxidized in the chemical reaction shown by the following chemicalequation?a. Cb. H3 Cu (s)C. Nd. Oe. This is not a redox reactionIn the reaction Fe ->a. oxidizedb. reduced+ 8HNO3 (aq)Date: Dec/25/2023c. CaH₂d. CH₁e. H₂c. electrolyzedd. the oxidizing agentOntario Virtual School3 Cu(NO3)2 (aq)Fe³+ + 3e, the species Fe is5.In which of the following molecules does hydrogen have an oxidation state of -1?a. H₂Ob. NH3+ 2 NO (g) + 4 H₂O (1)What are the oxidation numbers in the compound H3PO4?a. H=+1, P = 0, O = -2b.H=+1, P = +5, 0 = -2c. H = -1, P = +7, 0 = -1d. H=+1, P = + 1, O = -1

Answered: Image /qna-images/answer/9d59ae73-54b9-46bb-befc-bed9beaf55cc.jpg

SCH4U Unit 5 Electrochemistry Name: Pedram karimi Part A: Knowledge and Understanding (/10) 1. The electrode at which oxidation occurs is called the a. oxidizing agent b. cathode 6. c. reducing agent d. anode 2. Which of the following is an oxidation-reduction reaction? a. Na →→ Na¹ + 1e 2 SO₂ + O₂ → 2 SO3 C. N₂O4 → 2 NO₂ d. 2e + F₂ → 2 F b. 3 Cu (s) 3. Which element is oxidized in the chemical reaction shown by the following chemical equation? + 8HNO3(aq) a. Cu b. H c. N d. O e. This is not a redox reaction Date: Dec/25/2023 → c. electrolyzed d. the oxidizing agent Ontario Virtual School 4. In the reaction Fe→ Fe³+ + 3e, the species Fe is a. oxidized b. reduced 3 Cu(NO3)2 (aq) + 2 NO(g) + 4 H₂O (1) 5. In which of the following molecules does hydrogen have an oxidation state of -1? a. H₂O b. NH3 c. CaH₂ d. CH4 e. H₂ What are the oxidation numbers in the compound H3PO4? a. H=+1, P = 0, O = -2

SCH4U Unit 5 Electrochemistry Name: Pedram karimi Part A: Knowledge and Understanding (/10) 1. The electrode at which oxidation occurs is called the a. oxidizing agent b. cathode 6. c. reducing agent d. anode 2. Which of the following is an oxidation-reduction reaction? a. Na →→ Na¹ + 1e 2 SO₂ + O₂ → 2 SO3 C. N₂O4 → 2 NO₂ d. 2e + F₂ → 2 F b. 3 Cu (s) 3. Which element is oxidized in the chemical reaction shown by the following chemical equation? + 8HNO3(aq) a. Cu b. H c. N d. O e. This is not a redox reaction Date: Dec/25/2023 → c. electrolyzed d. the oxidizing agent Ontario Virtual School 4. In the reaction Fe→ Fe³+ + 3e, the species Fe is a. oxidized b. reduced 3 Cu(NO3)2 (aq) + 2 NO(g) + 4 H₂O (1) 5. In which of the following molecules does hydrogen have an oxidation state of -1? a. H₂O b. NH3 c. CaH₂ d. CH4 e. H₂ What are the oxidation numbers in the compound H3PO4? a. H=+1, P = 0, O = -2

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

A solution of potassium chromate of unknown concentration was analyzed against a standard of various concentrations. What is the linear equation of the standard curve from the given data? Table 1. Data for Standard Calibration Curve Potassium chromate 4 Absorbance at 425 nm Standard (mol/Liter) 0.00040 0.100 0.00080 0.301 0.00120 0.478 0.00160 0.787 0.00200 0.989 O y = 431.59x +0.9899 O y = 0.9919x + 0.731 O y = 566x -0.1482 Oy = 566x + 0.1482 none of the above
Examine the following IR spectra. Assign the characteristic peaks/vibrations (use v, 8, t, y). Then, tell (in words) all you can about the compound producing these spectra.
In an experiment with an Ostwald Viscometer, the times of flow of water and toluene are 45 s and 32.9 s respectively at 30°C. The density of water is 1.002 g/cc. Calculate the density of the toluene in g/ml. (µwater = 0.8916 %3D cP, utoluene = 0.5239 cP) Use 4 decimal places. 0.8853 0.8053 O 0.8080 O 0.8882
The solution calls for an exponent. How would I write that?
Part A transcript When glucose (C6H12O6 (s)) is consumed, it reacts with O₂ gas in the body to produce gaseous carbon dioxide and liquid water. Enter the balanced chemical equation for the reaction. Express your answer as a chemical equation including phases. 0 ΑΣΦ ? A chemical reaction does not occur for this question. Submit Previous Answers Request Answer
Chemistry How to balance centrifuge with odd number of vials with no balancing vials. Given 24 slots, with 7, 9, 11, 13, 15, 17, 19 vials.
Hello, Can you please answer these 3 questions? Thank you!
All changes save 7. When two solutions are mixed, a color change occurs. The data tables show the time between mixing and the color change for two sets of conditions. For Condition One, the solution concentrations were constant and temperature varied. For Condition Two, the temperature was constant and concentrations varied. Condition One: Concentration Time for Temperature (°C) Sample Color to Change 1 10° 36 sec 22° 14 sec Condition Two: Temperature Time for Concentration Sample Color to % Change 1. 100% 15 sec 2. 50% 24 sec Which of these statements is true according to the data? O The reaction rate is greater at 22°C than at 10°C. O Reducing the temperature increases the rate of the reaction. The reaction is affected by changes in temperature not by changes in concentration. O Decreasing the concentration increases the reaction rate. PREVIOUS 17 of 25 NEXT SAVE & EXIT
2. The goal behind suction filtration is to remove soluble impurities that are on the surface of the crystals. Therefore, why can't you simply use suction filtration instead of recrystallization to purify an impure solid?
A student determined that the mass of four pennies was 8.7 grams. Use this information to calculate the number of pennies in a box that contains 2.5 pounds of pennies. Rouund your answer to the nearest whole number. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
By the data gathered calculate the amount of BaCl2 needed fortitration.
In the copper experiment, a copper wire dissolves in nitric acid, a gas evolves. What is the color, name and chemical formula of the gas? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).