On Earth, the acceleration due to gravity is 9.8 m/s2. If a person has a mass of 65,000 g, how much force do they exert in Newton's? In pounds? (Note: 1 lb = 4.448 N)

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

What is the polyatamic ion of borate

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm