A 0.495g sample of a hydrocarbon exerts a pressure of 0.799atm in a 0.600L flask at 355K. What is the molar mass of the hydrocarbon? Use R=0.08206 L×atm/mol× K A)30.1 g/mol B) 58.1 g/mol C) 305 g/mol D) 112 g/mol

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Which fact represents evidence for the big bang theory?