What type of reaction is this mg + 2hcl -> mgcl2 + h2 a. decomposition b. synthesis c. double-displacement d. single-displacement

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures