How many grams of propane are in 20 pounds of propane? use the conversion 1 lb = 454 g. (express your answers for the next three questions in scientific notation. for example use 2.3e-5 to indicate a number such as 2.3 x 10-5.) 9.1e3 grams b) how many moles of propane are in 20 pounds of propane? 2.1e2 moles c)how much heat can be obtained by burning 20 pounds of propane? (remember to look at this from the viewpoint of the surroundings, since the question asks how much heat can be obtained.) 4.6e5 kj

In most resting cells, the concentration of sodium ions is higher outside of cells compared with the intracellular fluid. when cells are stimulated, sodium ion channels open, and sodium diffuses from the outside of the cell to the inside of the cell. sodium ion concentrations in a resting cell are an example of and sodium ion movement in a stimulated cell is an example of in most resting cells, the concentration of sodium ions is higher outside of cells compared with the intracellular fluid. when cells are stimulated, sodium ion channels open, and sodium diffuses from the outside of the cell to the inside of the cell. sodium ion concentrations in a resting cell are an example of and sodium ion movement in a stimulated cell is an example of potential energy; kinetic energy kinetic energy; potential energy the energy of motion; stored energy chemical work; energy stored in chemical bonds