Discribe an activity that can be performed to obtain silver in its free state from silver chloride

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.