The substance oxygen has the following properties: normal melting point: 54.8 K normal boiling point: 90.2 K triple point: 1.50×10-3 atm, 54.4 K critical point: 49.8 atm, 154.6 K At temperatures above 154.6 K and pressures above 49.8 atm, O2 is a . O2 does not exist as a liquid at pressures below atm. O2 is a at 1.50×10-3 atm and 96.5 K. O2 is a at 13.2 atm and 48.1 K. O2 is a at 1.00 atm and 82.0 K.

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

Ok, so i have 2 questions. try to answer them both: (the topic is fire) 1) how can you represent the chemical reaction of fire? 2) what kind of bond is formed in this chemical reaction

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i