The chemical equation below shows the combustion of propane (C3H8). C3H8 + 5O2 --> 3CO2 + 4H2O What mass of O2, in grams, is required to completely react with 0.025 g C3H8?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

How does the motion of particles in a gas change as the gas cools