Write qc for the reaction of hydrogen chloride gas with oxygen gas to produce chlorine gas and water vapor.

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

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.