Which of the following statements is true? flammability is a chemical property. modern chemical symbols were created by dimitri mendeleev. compounds usually have the same properties as the elements they are made from. all of the above.

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

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

The element that has the greatest electronegativity is