Please Help All matter has physical and chemical properties. These properties can be used to identify the type of matter. Which of these statements describes a chemical property?

Select one:

a. A metal is added to a beaker of water, a gas is formed, and the beaker explodes.

b. A certain heavy metal turns to a liquid at room temperature.

c. A 2-feet-long metal bar has a mass of only 176 g.

d. A particular substance evaporates at 30 °C.

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.