To prepare an aqueous solution that is 40.0% by weight of ki how many kilograms of ki must be added to 1,000 liters of water?

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

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