20. In the previous combustion experiment, the technician determined that the mass of the firewood and oxygen reactants before burning was 2.72 kg, and the mass
of the cooled ash that remained after burning was 0.095 kg.
During that combustion experiment, the temperature inside the burning chamber
was extremely hot, and the temperature on the outside of the chamber was also
extremely hot. The technician was careful not to place his hands on the outside
surface of the chamber during the combustion experiment to avoid getting
burned. Is this burning chamber an example of an open system, a closed system,
or an isolated system? Explain your answer.

explanation: well the force of an object when it lands sitting on the ground isthe force of a wide rage of situations crucial to physics? ; ( i 'm trying my best to alot but im not smart enofe you for giving me this chance though! 3(

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

the answer is 0.8m.

by: nicholas