In the calorimetry experiment, when a hot copper sample was placed in contact with a cold object, heat transfer occurs. Once both the copper sample and the cold object have the same amount of heat, heat transfer stops. This phenomena is a consequence of:
the Zeroeth Law of Thermodynamics
the First Law of Thermodynamics.
the Second Law of Thermodynamics.
the Third Law of Thermodynamics
the fact that cold objects do not transfer heat energy to hot objects spontaneously.

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will