Which of the following fields focuses on the investigation of the laws of nature? O science
O technology
O mathematics
O engineering

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg