A student weighs 1.662 of NaHCO3. She then heats it in a test tube until the reaction is complete. How many grams Na2CO3 can be produced in other words,
what is the theoretical yield)? Don't write the unit, just the number with correct
sig figs. (NaHCO3 = 84.01 g/mol, Na2CO3 = 105.99 g/mol)
2NaHCO3(s) - Na2CO3(s) + CO2(g) + H2O(g)

Yes it would be a physical change.

Hello.the answer is  hydrosphere, geosphere, and biosphere  have a nice day

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f. 

The answer to your question is c. mitochondria.