Examine the following reactions. Reaction 1
PC13(g) + Cl2(g) → PCI-(g)
Reaction 2
PC15(g) → PCl3(g) + Cl2(g)
Which options correctly explain the relationship between the two reactions?

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

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

Give more examples of this type of heat transfer: