How can you tell which end of a molecule is positive and which is negative? how do you label the dipole-dipole relationship?

If a certain battery supplies 1.0×108 electrons per second to the negative terminal and the battery contains 7.00 moles of electrolytic solution (which means the solution contains 7.00 moles of hso4), what fraction of the solution undergoes a chemical reaction each second

Which are forms of frozen water? check all that apply. dew frost hail rain sleet

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt