A given volume of oxygen diffuses through a hole in 8 seconds. How long will it take Sulphur dioxide (SO2) to diffuse under the same conditions. (O=16, SO2=64)​

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

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.

What is the percent by mass of magnesium sulfate in mgso4.7h2o