The activity of most enzymes is temperature dependent. There is an optimal temperature at which the rate of the catalyzed reaction is maximized and the rate decreases sharply if the temperature is higher or lower than the optimal temperature. What is the explanation for this?

Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products

How many moles of oxygen react with 12 moles of aluminum

Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.