Calculate the number of moles of barium hydroxide, ba(oh)2, present in a 100.0 g sample.

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 diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

Which are forms of frozen water? check all that apply. dew frost hail rain sleet