What is the ph of 40.0 ml of a solution that is 0.15 m in cn� and 0.29 m in hcn? for hcn, use ka = 4.9 * 10^-9

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)

Which statement can best be concluded from the ideal gas law?

Which material burns faster? metal aluminum