mixture with baking soda is heated and has a mass loss of 0.325 g. Refer to Example Exercise 14.2 and calculate the percentage of NaHCO3 in the mixture. 1 mol H2 CO3 62.03 g H2 CO3 2 mol NaHCO3 1 mol H2 CO3 84.01 g NaHCO3 1 mol NaHCO3 [?B1] g H2CO3 x = [?B2] g NaHCO3 %D Percentage of NaHCO3 in the mixture = [?B3] %

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ

Joan writes four numbers on the board in standard form, and then she writes their scientific notation