Charcoal appears black in color because it
a) emits black-colored light.
b) has a black-colored pigment.
c) absorbs all wavelengths of light that fall on it.
d) reflects all wavelengths of light that fall on it.

What happens to the atomic radius when an elctron is lost

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

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