Which effect of an environmental change does this best illustrate?
A. migration
B. loss of habitat
C. adaptation
D. extinction

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump