Analyze: What pattern do you see? Make a rule: Based on your data, how are elements arranged into chemical families?

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

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?