1. a 15.8 liter solution contains 10.4 moles of nacl. what is its concentration?

 = 0.658 M

Explanation:

Molarity also known as concentration is given by the formula;

Concentration = Number of moles / Volume in liters

In this case;

Number of moles = 10.4 moles

Volume = 15.8 liters

Concentration = 10.4 moles/ 15.8 liters

                        = 0.658 moles/liter

                       = 0.658 M

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun