A solution has a H+ concentration of 3.4X 10-5M. The pH is ?

In which of these cases are the two wave points considered to be in phase with each other?

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

What are the similarities of physical and chemical change ?