Which of the following is not evidence of a chemical change? a. a change in color b. the production of a gas c. the formation of a precipitate d. the separation of particles

What is limiting reactant? with examples

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

Amedication is given at a dosage of 3.000 mg of medication per kg of body weight. if 0.1500 g of medication is given, then what was the patient's weight in pounds (lbs)? there are 453.59g in 1 lb.