A chemical reaction occurs in 200 grams of water with an initial temperature of 16.0°C. The reaction is allowed to
proceed in a coffee cup calorimeter. As a result of the
reaction, the temperature of the water rises to 31.0°C. How
much heat energy was absorbed by the water (specific heat
= 4.184 J/g. °C)?
a.
12,552 )
b. 13,450 ]
C. 18,875 )
d. 56,500 )

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.