A metal sample is hammered into a rectangular sheet with an area of 31.2 ft2 and an average thickness of 2.30 x 10-6 cm. If the density of this sample is 7.15 g/cm3, calculate the mass of the sample in grams (g).

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

This drawing shows a human body system. what is the primary function of this body system?

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.