Homework Help is Here – Start Your Trial Now!
Science
Chemistry
1. How many protons (P), neutrons (N) and electrons (e) are present in 22286Rn+²: a. 222 p 136 n 86 e b. 86 p 133 n 84 e c. 86 p 136 n 84 e d. 84 p 133 n 84 e.

1. How many protons (P), neutrons (N) and electrons (e) are present in 22286Rn+²: a. 222 p 136 n 86 e b. 86 p 133 n 84 e c. 86 p 136 n 84 e d. 84 p 133 n 84 e.

Introduction to General, Organic and Biochemistry
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter5: Gases, Liquids, And Solids
Section: Chapter Questions
Problem 5.103P
See similar textbooks
icon
Related questions
Question

solve very very fast in 15 min | I need a clear answer by hand, not by keyboard

 

1. How many protons (P), neutrons (N) and electrons (e) are present in 2228 a. 222 p 136 n 86 e b. 86 p 133 n 84 e 2. What is the percent by weight of a-17.7 b-43.2 3. The reaction: 12(g) + F2 (g) -> 2 IF(g), Kc =1×106 at 2000k if the partial pressure of IF at equilibrium = 0.2 atm, F2= 4x10-3 atm. The partial pressure of 1₂ is: a. 5x104 b. 1x10-3 c. 1x10-5 d. none of them 4. In case of an c. 86 p 136 n 84 e 286Rn+2: d. 84 p 133 n 84 e. P in the compound in P4S3? (At. Wt. P-31, S=32)| c-12.9 d-77.5 e-56.4 process, the temperature of the system increases b. adiabatic compression c. isothermal expansion a. adiabatic expansion d. isothermal compression 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂O₂ e. KCrO4 b. K₂CRO4 6. On what electrode and What mass (in gram) f chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode b. 6.603gm on anode c. 3.311gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl₂ + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 d. 0.3 c. 0.02 10. The oxidation state for underlined ion (ASO4³, K2O2, H31O62, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)
Transcribed Image Text:1. How many protons (P), neutrons (N) and electrons (e) are present in 2228 a. 222 p 136 n 86 e b. 86 p 133 n 84 e 2. What is the percent by weight of a-17.7 b-43.2 3. The reaction: 12(g) + F2 (g) -> 2 IF(g), Kc =1×106 at 2000k if the partial pressure of IF at equilibrium = 0.2 atm, F2= 4x10-3 atm. The partial pressure of 1₂ is: a. 5x104 b. 1x10-3 c. 1x10-5 d. none of them 4. In case of an c. 86 p 136 n 84 e 286Rn+2: d. 84 p 133 n 84 e. P in the compound in P4S3? (At. Wt. P-31, S=32)| c-12.9 d-77.5 e-56.4 process, the temperature of the system increases b. adiabatic compression c. isothermal expansion a. adiabatic expansion d. isothermal compression 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂O₂ e. KCrO4 b. K₂CRO4 6. On what electrode and What mass (in gram) f chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode b. 6.603gm on anode c. 3.311gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl₂ + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 d. 0.3 c. 0.02 10. The oxidation state for underlined ion (ASO4³, K2O2, H31O62, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Mole Concept
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Introduction to General, Organic and Biochemistry
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:
9781285869759
Author:
Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:
Cengage Learning
Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
Chemistry
ISBN:
9781305079243
Author:
Steven S. Zumdahl, Susan A. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781133611097
Author:
Steven S. Zumdahl
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS