A prospector finds 39.39 grams of pure gold (atomic mass 196.9655 u). How many atoms of gold are there? a 7.76 x 103
b 1.2 x 1023
c 0.199
d 6.02 x 1023

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

Chromosome 17 is made of over million base pairs.

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml