Ibuprofen a common over the counter analgesic often comes in doses of 200.0 mg and is usually taken every four to six hours. calculate the half-life, t 1/2 , of ibuprofen in hours (h) if 6.250 mg of ibuprofen remains in the body after 11.0 h.

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

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block