Answer:
Nitroglycerin- CNH2O3
Vanilin- C3H3O
Explanation:
The empirical formula is the simplest formula of a compound. It depicts the ratio of atoms of each element in the compound. It can be obtained by dividing the percentage by mass of each element by its relative atomic mass. The lowest ratio obtained is now used to divide all the previously obtained ratios and whole number values are recorded. This shows the ratio of atoms of each element present, hence the empirical formula.
Tin
Chemical Element
Tin is a chemical element with the symbol Sn and atomic number 50. It is a main group metal in group 14 of the periodic table. Wikipedia
Symbol: Sn
Electron configuration: [Kr] 4d105s25p2
Atomic number: 50
Melting point: 449.5°F (231.9°C)
Atomic mass: 118.71 u
Boiling point: 4,717°F (2,603°C)
Electrons per shell: 2, 8, 18, 18, 4
Answer:
Colorado river
Explanation:
The Grand Canyon is usually referred to as the large and beautiful geological landform that is formed by the continuous carving of the rocks due to the flow of the Colorado River through the canyon. It is near about 450 kilometers long and has a width of about 6.5 to 30 kilometers. This canyon covers a large area in the north-western part of Arizona in the United States.
The main agent for the cutting down of rocks here is the water. According to the research, this canyon is about 70 million years old, and the river Colorado has been flowing through this canyon from about 5-6 million years back.
Answer:
a) increases
b) decreases
c) does not change
d) increases
Explanation:
The vapour pressure of a liquid is dependent on;
I) the magnitude of intermolecular forces
II) the temperature of the liquid
Hence, when any of these increases, the vapour pressure increases likewise.
Similarly, the boiling point of a liquid depends on the magnitude of intermolecular forces present because as intermolecular forces increases, more energy is required to break intermolecular bonds.
Lastly, increase in surface area of a liquid does not really affect it's vapour pressure.
