This temperature in units of degree Celsius is..
-78° Celsius
The most important state in determining the state of a substance is
temperature. This is because the kinetic energy of a substance's
molecules depend on its temperature. For example, an increase in
temperature speeds up the movement of molecules. A decrease in
temperature slows down the movement of molecules.
This is
important because by increasing or decreasing a substance's temperature,
you are also adding or removing energy from it. And when a substantial
amount of energy has been added or removed, a substance can change its
state from solid > liquid > gas or the other way around.
Answer:
1. Compound A is propanol which reacts with sodium metal with the evolution of hydrogen gas and this is the gas which is causing little explosion. Propanol is normally liquid at room temperature.
2. Compound B is propene since it decolourises bromine water. This reaction is normally an addition reaction.
3. Compound C is propane since it gives a substitution reaction with chlorine.
Explanation:
There are 20 milligrams in 0.2 decigrams