Solve then following conversion problems: (9.56 x 103) + (6.0 x 103)

(3 x 10-4) x (3 x 10-2)

(8 x 108) / (4 x 102)

could u please help? I'm screwed and I got a test coming up

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

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

What element has similar physical and chemical properties as boron.