You will pour the ester into water before you identify the smell because the smell is mixed with the smell of a carboxylic acid. with the use of the water the carboxylic acid will dissolved in it, while the ester will form a layer because it is not soluble in water, and you will smell it clearly
The ans is B) because gravity attracts and doesn't repel
<span>From the
small number of impact craters on moon, planetary geologists suspect
that virtually all its original surface has been covered over by younger
volcanic activity</span>. Most
of the Moon's surface is densely covered with craters, but we find relatively few
craters within the lunar maria.<span> </span>
The closest is the one we're in. We call it the Milky Way galaxy.
The nearest one outside of the Milky Way is the Andromeda galaxy ... less than a piffling 3 million light years away, practically in our back yard.
Yes they do observe the law of conservation of mass
