D. Concentrations of Reactants: Magnesium-Hvdrocholoric Acid System In many cases, if the variable being changed is concentration of chemical constituent has the effect of changing the rate of a reaction. Parameters of the experiment: four test tubes are acquired of varying concentrations of hydrochloric acid [HCI] consisting of 1M, 3M, 4M, and 6M Magnesium metal [Mg] is placed in test tube and the time it takes for the Mg to dissolve is measure. Lab Data (Observation): Test Tube (1M HCI): 1.26 min/seconds Test Tube (3M HCI): 51 seconds Test Tube (4M HCI): 23 seconds Test Tube (6M HCI): 5.6 seconds Question-8 Calculate the rate for each test tube. For part.D use the concentration of Mg(s) at 0.05M. Rate = A[Mg]/time

18) Atropine and cocaine are used in the diagnosis of diseases.

Question • Choose a pharmaceutical drug and answer the following questions about the drug: o What is the IUPAC chemical name? o Who discovered it or what company discovered it and when (if available)? o What does the compound look like? Provide a picture of the compound. o What are the functional groups in the compound? o What are the medical uses for the drug? o What is the mechanism of action of the drug (how does it work to affect the disease or malady)? o How is it usually administered (ex. IV, pill, etc.)? o What are the potential adverse effects of the drug? Expert Answer Step 1 Note - Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for you. To get remaining sub-part solved please repost the complete question and mention the sub-parts to be solved. A pharmaceutical drug used for treatment of fever and for mild to moderate pain is Paracetamol. Its molecular formula

1. If you get oil on your hands, and try to wash them with just water, it won’t remove the oil. Why? 2. If you add soap to your hands, you can now wash away the oil. This is because soap can interact with both oil and water. Based on this information, what term would you use to describe soap?