Answers: 3
Chemistry, 22.06.2019 03:00
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
Chemistry, 22.06.2019 10:50
How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)
Answers: 2
Chemistry, 23.06.2019 03:00
Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
Answers: 3
Chemistry, 23.06.2019 03:10
Which is true according to the law of conservation of energy
Answers: 1
The average atomic mass of nickel is 58.69 amu. It has 28 protons. How many electrons does nickel ha...
Mathematics, 19.07.2020 02:01
English, 19.07.2020 02:01
Mathematics, 19.07.2020 02:01
Social Studies, 19.07.2020 02:01
Mathematics, 19.07.2020 02:01
Computers and Technology, 19.07.2020 02:01
Biology, 19.07.2020 02:01
Mathematics, 19.07.2020 02:01
Mathematics, 19.07.2020 02:01
Mathematics, 19.07.2020 02:01