51:16 Please select the word from the list that best fits the definition
the distinctive yellow of sulfur
luster
cleavage
ores
hardness
color
streak
fracture
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Tolerance to high levels of salinity

In reversible reaction chemistry equilibrium is attained when the forward and reverse reactions are taking place at the same rate, thus, the concentrations of reactants and products remain the same. a reversible reaction is a chemical reaction where the reactants form products that, in turn, react together to give the reactants back. in irreversible reactions on the other hand, the reactants react to form the products, which cannot revert back into reactants.

The answer is b electromagnetic i believe, i hope i ya out!

A. pipe, good luck, hope you get it right