He decayed organic material that gives soil its dark brown or black color is called
a) clay.
b) humus.
c) loam.
eliminate
d) silt.

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

How many atoms are there in 5.70 mol of mg

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m