In your own words, summarize the contrasting arguments of Democritus and Aristotle about the composition (make up) of matter.

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)

Is laundry detergent an acid or a base?

Chemistry worksheet - i am not sure what they are asking for exactly?