Ascientist heats a piece of iron until it is glowing white-hot. he places the metal inside a metal box. he removes all of the air from the inside of the box. after a few seconds, the sides of the box that are not touching the metal begin to feel warm. which process is most likely responsible for the warming? (2 points) select one: a. convection b. convection current c. radiation d. evaporation

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

In a copper wire, a temperature increase is the result of which of the following

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.