Why are coastal areas cooler during the day than inland areas?
a) it rains during the day in coastal areas.
b) a cool breeze blows from the sea during the day.
c) coastal areas experience storms every other day.
d) the sea absorbs the heat of the air over coastal areas.

Enough of a monoprotic weak acid is dissolved in water to produce a 0.0172 m solution. if the ph of the resulting solution is 2.39 at 20 °c, determine the pka for the acid.

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?