COMPARE and CONTRAST the melting of ice and the freezing of water in terms of endothermic and exothermic. Use an ILLUSTRATION to help explain.

Balance this equation: n2 + h2 > nh3, write the following molar ratios: n2 / n2 / nh3 h2 /

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

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.