A block of ice is placed outside on a hot summer day. Describe the changes in particle motion and the corresponding changes in energy as the ice melts and eventually becomes water vapor.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .

Suppose a lab group reports a ppercent yield of sand of 105. is it really possible to collect more sand than was originally represented? what is the possible explanation for the extra product?

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate