Answer: Option B) Pure Substance &
Compound
Explanation:
Carbon dioxide is a compound because it is formed when one carbon atom and two oxygen atoms chemically combined together.
C(s) + O2(g) ---> CO2(g)
Also, CO2 is a pure substance because it is natural and cannot be broken down easily or separated by physical methods.
Answer: -
Acetic acid
Explanation: -
The intermolecular force of attraction depends on the strength or extent of Hydrogen bonding present in a substance.
Benzene and chloroform does not have hydrogen bonding being non polar molecule.
Water has hydrogen bonding being polar.
However acetic acid being most polar has the maximum hydrogen bonding.
Thus acetic acid has the strongest intermolecular forces of attraction.
The color changes to a blue green color because of the acidity/pH in water. Example is the statue of liberty
1,000 grams = 1 kilogram
20 grams = 0.02 kilogram
Kinetic energy = (1/2) (mass) x (speed)²
(1/2) (0.02) x (15)² =
(0.01) x (225) = 2.25 joules
Answer:
Napoleon Bonaparte
Explanation:
Napoleon Bonaparte was pleased by Berthollet's accomplishments and hired Berthollet in 1798 for his expedition in Egypt, wherein he founded the Institut d'Egypte. He has become the chief scientist at the Institut de France following his homecoming to Paris, and he set up a private laboratories at his country residence in Arcueil on the outskirts of The capital.
