Magnesium metal a gray solid, is heated in a crucble in the presence of oxygen
Awhite powder is collected from the crucible. This is an example or

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

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.