How The areas under the peaks on a gas chromatogram for a mixture of ethyl acetate and toluene were 85 "units" at 2.5 minutes elution and 30 "units" at 3.2 minutes respectively. What was the composition of the mixture

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

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)

What happens to the temperature of a substance when the average kinetic energy of its particles increases?