Why are scientists interested in exploring mars? a. possible existence of sulfur vents b. possibility of mining minerals c. possible discovery of a cure for disease d. possible evidence of life

Lewis structure and molecular geometry for nh2cl

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

Can someone me with 6 to 10 plz this is for masteries test.