11. 1. Calculate the number of water molecule
present in one drop of water which weighs
0.18 g.

6.022×10²¹

Explanation:

First calculate the number of moles

n=m/GFM

n=.018/18

n=0.01moles

Then multiply the number of moles by the molar mass

0.01×6.022×10²³ =6.022×10²¹

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.