A scientist wanted to test his new simple distillation instrument. He decided to distill some seawater as a first trial and some diluted rum (ethonal/water mixture) as a second trial. For his first trail, he allowed the temprature to reach up to 100° because that is the boiling point of pure water. The boiling point of ethanol in the dilute rum is 78° a)What is the distillate in the first trial?
b)What would have been the maximum temperature for the 2nd trial?
c)What was the distillate in the second trial?

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

1 is the answer to this problem