You place a balloon in a closed vacuum chamber at stp. you reduce the pressure by half. what happens to the balloon?
a. it doubles in volumes.
b. it stays the same.
c. it reduces the size by half.

How many grams of aluminum will there be in 98g of al2o3?

How does concentration affect reaction rate

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)