Amagnet is passed ten centimeters above a desk. A paper clip resting on the desk begins to move as the magnet passes over it. What could be done to increase the effect of the magnet on the paper clip?​

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)