Question 1
Given the unbalanced equation: CH4 + O2 ® CO2 + H2O.
When properly balanced, the sum of the balancing coefficients is
a.6
b.8
c.10
d.12
Question 2
The reaction: CH4 + 2O2 ® CO2 + 2H2O releases heat, is it
a.endothermic.
b.exothermic.
c.isothermic.
d.protothermic.
Question 3
The reaction: N2 + O2 ® 2NO absorbs heat, is it
a.endothermic.
b.exothermic.
c.isothermic.
d.protothermic.
Question 4
Natural gas is primarily composed of
a.butane.
b.propane.
c.octane.
d.methane.