A 1% solution of Ivermectin contains how many mcg per mL?

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

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

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.