♡ What is photosynthesis? Can anyone please subscribe to my friend's channel "Craft with Aena"?

She really needs some subscribers! ✨

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Can someone me with 1 to 4 plz. fast

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h