What are properties of the group of elements on the periodic table that have just one valence electron? (2 points) Gas at room temperature
Soft and highly reactive
Unstable and radioactive
Very low reactivity

100mg magnesium reacts with 20ml of 1.0m hcl

Which of these sequences lists the correct order for the creation of sedimentary rock from sediment? a. deposition, burial, compaction, cementation b. burial, deposition, compaction, cementation c. compaction, deposition, burial, cementation d. cementation, deposition, burial, compaction

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c