Ch.3 - Chemical ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: The reaction of Cr2O3 with silicon metal at high temperatures will make chromium metal.2Cr2O3(s) + 3Si(s) → 4Cr(l) + 3SiO2(s) The reaction is begun with 107.00 g of Si and 149.00 g of Cr2O3. Part 1 (1

Problem

The reaction of Cr2O3 with silicon metal at high temperatures will make chromium metal.

2Cr2O3(s) + 3Si(s) → 4Cr(l) + 3SiO2(s) 

The reaction is begun with 107.00 g of Si and 149.00 g of Cr2O3

Part 1 (1 point) 

Select the limiting reactant. 

Choose one or more: 

(i) Cr 

(ii) Cr2O3

(iii) SiO2 

(iv) Si

Part 2 (1 point) 

How many grams of the excess reactants are left after the reaction is completed?