University:
North Seattle College
Course:
CHEM 122 | Introduction to Organic Chemistry
Academic year:

2024
Views:

339

Pages:

1
Author:

Kolten Khan

balancing chemical equations answers 1. What coefficients would balance the following equation?__Al + __O2 ’ __Al2O3 A. 2Al + 3O2 ’ 1Al2O3 B. 2Al + 3O2 ’ 2Al2O3 C. 3Al + 3O2 ’ 2Al2O3 D. 4Al + 3O2 ’ 2Al2O3 D. 4Al + 3O2 ’ 2Al2O3 2. What coefficients would balance the following equation?__C2H6 + __O2 ’ __CO2 + __H2O A. 1C2H6 + 5O2 ’ 2CO2 + 3H2O B. 2C2H6 + 5O2 ’ 4CO2 + 6H2O C. 2C2H6 + 7O2 ’ 4CO2 + 6H2O D. 2C2H6 + 10O2 ’ 4CO2 + 6H2O C. 2C2H6 + 7O2 ’ 4CO2 + 6H2O 3. Classify the chemical reaction shown here:Mg + H2SO4 ’ MgSO4 + H2 A. Combination B. Single replacement C. Decomposition D. Double replacement B. Single replacement 4. Classify the chemical reaction shown here:CaCO3 ’ CaO + CO2 A. Combination B. Single replacement C. Decomposition D. Double replacement C. Decomposition 5. Which of the following is an example of a double replacement reaction? A. 3Fe + 2O2 ’ Fe3O4 B. BaCl2 + K2CO3 ’ BaCO3 + 2KCl C. NiCO3 ’ NiO + CO2 D. Cl2 + 2NaBr ’ 2NaCl + Br2 B. BaCl2 + K2CO3 ’ BaCO3 + 2KCl 1/1