Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Try balancing the following reactions from the preceding section, unless they are already balanced: 1. Cu2O + C → Cu + CO2 2. CACO3 → CaO + CO2 3. Hg + 02 → HgO

Try balancing the following reactions from the preceding section, unless they are already balanced: 1. Cu2O + C → Cu + CO2 2. CACO3 → CaO + CO2 3. Hg + 02 → HgO

World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter9: Chemical Quantities
Section: Chapter Questions
Problem 1STP
See similar textbooks
icon
Related questions
Question
Balancing chemical reactions. Lab 8.1. General, Organic, and Biological Chemistry
Balancing Chemical Reactions Try balancing the following reactions from the preceding section, unless they are already balanced: 1. Cu2O + Cu + CO2 2. CACO3 → СаО + CO2 3. Hg + O2 → Hgo 4. NaHCO3 + HCI → NaCl + H,CO3 5. H2CO3 → H20 + CO2 6. N2 + O2 → NO2 7. AUCN + Zn → Au + Zn(CN)2 8. Cu + O2 → CuO 9. CuO + H2O → Cu(OH)2 10. Cu(OH)2 + H2CO3 → CUCO3 + НОН 11. C6H1206 СН,ОН + CO2 Lethal hydrogen cyanide gas (HCN) is generated in gas chambers by dropping solid sodium 12) cyanide into sulfuric acid (hydrogen sulfate): NaCN + H2SO4 → NazSO4 + HCN Railroad ties can be welded in place by covering the break with Thermite, a mixture of iron (III) oxide and metallic aluminum. The heat generated by the reaction is great enough to melt the iron produced and drop it into the break. 13) Al + Fe2O3 → Al2O3 + Fe There are two other oxides of iron, FeO and Fe;O4. Although these are not used in the Thermite reaction, pretend they are and try to balance the following reactions: Al + Feo → Al2O3 + Fe Al + Fe;O4 → Al½O3 + Fe
Transcribed Image Text:Balancing Chemical Reactions Try balancing the following reactions from the preceding section, unless they are already balanced: 1. Cu2O + Cu + CO2 2. CACO3 → СаО + CO2 3. Hg + O2 → Hgo 4. NaHCO3 + HCI → NaCl + H,CO3 5. H2CO3 → H20 + CO2 6. N2 + O2 → NO2 7. AUCN + Zn → Au + Zn(CN)2 8. Cu + O2 → CuO 9. CuO + H2O → Cu(OH)2 10. Cu(OH)2 + H2CO3 → CUCO3 + НОН 11. C6H1206 СН,ОН + CO2 Lethal hydrogen cyanide gas (HCN) is generated in gas chambers by dropping solid sodium 12) cyanide into sulfuric acid (hydrogen sulfate): NaCN + H2SO4 → NazSO4 + HCN Railroad ties can be welded in place by covering the break with Thermite, a mixture of iron (III) oxide and metallic aluminum. The heat generated by the reaction is great enough to melt the iron produced and drop it into the break. 13) Al + Fe2O3 → Al2O3 + Fe There are two other oxides of iron, FeO and Fe;O4. Although these are not used in the Thermite reaction, pretend they are and try to balance the following reactions: Al + Feo → Al2O3 + Fe Al + Fe;O4 → Al½O3 + Fe
Counting Particles Inspect this reaction sentence and determine whether it is balanced correctly. Then decide how many atoms of each element are involved in the reaction, as well as how many moles of each conzpound or element are among the reactants and the products. (If the reaction is balanced, you need only to count the elements on one side.) 2 KMNO4 + 5 H2O2 + 3 H2SO4 → 2 MNSO4 + 5 O2 + K2SO4 + 8 H2O On one side of the reaction: a) How many atoms of potassium? b) How many atoms of manganese? c) How many atoms of oxygen (the total in all compounds)? d) How many atoms of hydrogen (the total in all compounds)? e) How many atoms of sulfur? In the overall reaction: f) How many moles of potassium permanganate (KMNO4)? g) How many moles of hydrogen peroxide (H2O2)? h) How many moles of sulfuric acid (H2SO4)? i) How many moles of manganese sulfate (MNSO4)? j) How many moles of molecular oxygen (O2)? k) How many moles of potassium sulfate (K2SO4)? How many moles of water (H2O)? List four observable clues that a chemical reaction has apparently taken place. 1) 2) 3) 4)
Transcribed Image Text:Counting Particles Inspect this reaction sentence and determine whether it is balanced correctly. Then decide how many atoms of each element are involved in the reaction, as well as how many moles of each conzpound or element are among the reactants and the products. (If the reaction is balanced, you need only to count the elements on one side.) 2 KMNO4 + 5 H2O2 + 3 H2SO4 → 2 MNSO4 + 5 O2 + K2SO4 + 8 H2O On one side of the reaction: a) How many atoms of potassium? b) How many atoms of manganese? c) How many atoms of oxygen (the total in all compounds)? d) How many atoms of hydrogen (the total in all compounds)? e) How many atoms of sulfur? In the overall reaction: f) How many moles of potassium permanganate (KMNO4)? g) How many moles of hydrogen peroxide (H2O2)? h) How many moles of sulfuric acid (H2SO4)? i) How many moles of manganese sulfate (MNSO4)? j) How many moles of molecular oxygen (O2)? k) How many moles of potassium sulfate (K2SO4)? How many moles of water (H2O)? List four observable clues that a chemical reaction has apparently taken place. 1) 2) 3) 4)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Carboxylic Acids and their Derivatives
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
World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
Chemistry
ISBN:
9781133109655
Author:
Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:
Brooks / Cole / 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:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781133611097
Author:
Steven S. Zumdahl
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS