Problem 1: How many joules of heat energy must be added to 45 grams of liquid water to change the temperature from 20°C to 152°C water vapor? How many steps are in this problem?

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

How many moles of gas are present if p=11 atm, v=12l, t=185k?

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.