Acetylene, C2H2, is a gas used in welding. The molar enthalpy of combustion for acetylene is -2599 kJ. A mass of 0.338 g C2H2(g) is combusted in a bomb calorimeter. If
the heat capacity of the calorimeter is 5.54 kJ/°C, what is the temperature increase of
the bomb calorimeter?
12.3°C
18.0°C
6.09°C
1.59°C
7.01°C

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?

At 35.0°c and 3.00 atm pressure, a gas has a volume of 1.40 l. what pressure does the gas have at 0.00°c and a volume of 0.950 l? which equation should you use? p2= p1v1t2/t1v2what is the pressure of the gas? 3.92 atm these are the answers