Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Question 1: Select the best answer for the following questions? 1. Number of ions in 0.5 mole of Hg2Cl2 is equal to: A. 1.2x1024 B. 9.3x1023 C. 3.01x1023 D. 6.02 x1023 2. Mass of one sodium atom equal: А. 23 amu B. 3.8 x1023 С. 3.8 х1023 D. A and C are true 3. The density of chemical substances is classified as property: А. Intensive B. Extensive physical C. Chemical D. Intensive and chemical physical 4. When AGNO3 dissolved in water is an example on А. Chemical B. Physical Property C. Physical Change D. Chemical Property Change 5. Describe the accuracy and precision of the image: A. Accurate and B. Precise and not C. Accurate and D. Not accurate neither accurate. Precise. precise. not Precise. 6. Which is the product of these numbers, to the appropriate number of significant digits? (013.012 X 21.30) 7. 12 + (32. 15 – 25.063) A.45.49 B.46.0 C.45.5 D. 46.01 7. Which of the structures shown below represent isotopes? 238 Y 235 234 234 w 92 92 93 92 A. Z and W B. X and Y C. X and Z D. X, Y and Z 8. The best chemical formula that describes the ionic compound made from Barium and phosphate is: А. Вaз(РО4)2 В. Ва- (РО4) C. Ba3(PO4) D. Ba(PO4) 1

Question 1: Select the best answer for the following questions? 1. Number of ions in 0.5 mole of Hg2Cl2 is equal to: A. 1.2x1024 B. 9.3x1023 C. 3.01x1023 D. 6.02 x1023 2. Mass of one sodium atom equal: А. 23 amu B. 3.8 x1023 С. 3.8 х1023 D. A and C are true 3. The density of chemical substances is classified as property: А. Intensive B. Extensive physical C. Chemical D. Intensive and chemical physical 4. When AGNO3 dissolved in water is an example on А. Chemical B. Physical Property C. Physical Change D. Chemical Property Change 5. Describe the accuracy and precision of the image: A. Accurate and B. Precise and not C. Accurate and D. Not accurate neither accurate. Precise. precise. not Precise. 6. Which is the product of these numbers, to the appropriate number of significant digits? (013.012 X 21.30) 7. 12 + (32. 15 – 25.063) A.45.49 B.46.0 C.45.5 D. 46.01 7. Which of the structures shown below represent isotopes? 238 Y 235 234 234 w 92 92 93 92 A. Z and W B. X and Y C. X and Z D. X, Y and Z 8. The best chemical formula that describes the ionic compound made from Barium and phosphate is: А. Вaз(РО4)2 В. Ва- (РО4) C. Ba3(PO4) D. Ba(PO4) 1

Chemistry
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
icon
Related questions
Question
Question 1: Select the best answer for the following questions? 1. Number of ions in 0.5 mole of Hg2Cl2 is equal to: A. 1.2x1024 B. 9.3x1023 C. 3.01x1023 D. 6.02 x1023 2. Mass of one sodium atom equal: A. 23 amu В. 3.8 х1023 С. 3.8 х1023 D. A and C are true 3. The density of chemical substances is classified as property: А. Intensive B. Extensive physical C. Chemical D. Intensive and chemical physical 4. When AGNO3 dissolved in water is an example on А. Chemical B. Physical Property C. Physical Change D. Chemical Property Change 5. Describe the accuracy and precision of the image: A. Accurate and B. Precise and not C. Accurate and D. Not accurate neither accurate. Precise. precise. not Precise. 6. Which is the product of these numbers, to the appropriate number of significant digits? (013.012 X 21.30) + (32. 15 – 25.063) 7.12 A.45.49 В.46.0 C.45.5 D. 46.01 7. Which of the structures shown below represent isotopes? 235 238 Y 234 234 w 92 92 93 92 A. Z and W B. X and Y C. X and Z D. X, Y and Z 8. The best chemical formula that describes the ionic compound made from Barium and phosphate is: А. Ваз(РО4)2 В. Ва (РО«) C. Ba3(PO4) D. Ba(PO4) 1 9. The chemical formula of Ferrous bromide is: B. FeBr2 A. FeBr C.FeBr3 D.Fe,Br3 10.The chemical formula of dinitrogen tetroxide is B. 2NO4 A. 2N40 C. N2O4 D. O,N2 11.Sodium thiosulfate pentahydrate is an example of: A. Anhydrous salt B. Hydrous part C. Anhydrous prat D. Hydrated salt 12.Mass of hydrogen in 15g H202 is: A. 0.88 g C. 14.11g В. 1.769 D. 2.64g 13.The formula for a compound consists of 72.2% magnesium and 27.8% nitrogen is: A. Mg,N3 C. Mg3N2 B. MgN2 D. MgN
Transcribed Image Text:Question 1: Select the best answer for the following questions? 1. Number of ions in 0.5 mole of Hg2Cl2 is equal to: A. 1.2x1024 B. 9.3x1023 C. 3.01x1023 D. 6.02 x1023 2. Mass of one sodium atom equal: A. 23 amu В. 3.8 х1023 С. 3.8 х1023 D. A and C are true 3. The density of chemical substances is classified as property: А. Intensive B. Extensive physical C. Chemical D. Intensive and chemical physical 4. When AGNO3 dissolved in water is an example on А. Chemical B. Physical Property C. Physical Change D. Chemical Property Change 5. Describe the accuracy and precision of the image: A. Accurate and B. Precise and not C. Accurate and D. Not accurate neither accurate. Precise. precise. not Precise. 6. Which is the product of these numbers, to the appropriate number of significant digits? (013.012 X 21.30) + (32. 15 – 25.063) 7.12 A.45.49 В.46.0 C.45.5 D. 46.01 7. Which of the structures shown below represent isotopes? 235 238 Y 234 234 w 92 92 93 92 A. Z and W B. X and Y C. X and Z D. X, Y and Z 8. The best chemical formula that describes the ionic compound made from Barium and phosphate is: А. Ваз(РО4)2 В. Ва (РО«) C. Ba3(PO4) D. Ba(PO4) 1 9. The chemical formula of Ferrous bromide is: B. FeBr2 A. FeBr C.FeBr3 D.Fe,Br3 10.The chemical formula of dinitrogen tetroxide is B. 2NO4 A. 2N40 C. N2O4 D. O,N2 11.Sodium thiosulfate pentahydrate is an example of: A. Anhydrous salt B. Hydrous part C. Anhydrous prat D. Hydrated salt 12.Mass of hydrogen in 15g H202 is: A. 0.88 g C. 14.11g В. 1.769 D. 2.64g 13.The formula for a compound consists of 72.2% magnesium and 27.8% nitrogen is: A. Mg,N3 C. Mg3N2 B. MgN2 D. MgN
Expert Solution
steps

Step by step

Solved in 2 steps with 2 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
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS