*HELP ME PLZ* How many atoms are in.33 moles of strontium?
A. 1.98 x 23
B. 3.21 x 1032
C. 1.11 x 1011
D. 4.24 x 1023

Which statement describes james chadwick’s discovery.

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

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.