18.4 g State here the mass of sulfur that you were assigned in the question:
Now use the space below to calculate the mass of iron that contains an equal number of moles to
this amount of sulfur. Remember to show all steps of working in your calculation, write out in
full any equations you are using, and quote an appropriate number of significant figures in your
final answer.

I’d have to say no because without oxygen in the water the fish would all be dead. so if you want to fish for dead fish, pick the ponds with the lowest oxygen concentrations.

Sorry i dont understand the question can you rephase it?

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.