Tamara pours hot tea into a cold mug. A few moments later, she picks up the mug, and it is now warm.

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

0.09 moles of sodium sulfate in 12 ml of solution

How are the terms group and period used on the periodic table