Answer:
Gases are compressible, meaning that when put under high pressure, the particles are forced closer to one another. This decreases the amount of empty space and reduces the volume of the gas. Gas volume is also affected by temperature. When a gas is heated, its molecules move faster and the gas expands.
The density is 3 because the density remains the same.
Answer:
The boiling point of water is a physical property and is equal to 0 C.
The Correct Answer is : C
Carbon normally bonded to Hydrogen, Nitrogen, Oxygen