Which statement describes a catalyst? Catalysts appear as reactants in a chemical equation.
Catalysts are completely consumed by the reaction.
Catalysts provide a lower energy pathway for the reaction.
Catalysts speed up chemical reactions by increasing surface area.

Summarize possible ways in which phases of matter could combine to form a solution.

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

Drug abuse will not lead to physical and psychological dependence. true or false ?