A flexible vessel containes 78L of gas at a pressure of 1.5 atm. Under conditions of constant temperature and moles of gas, what is the pressure of the gas when the volume of the vessel is tripled?

It would be true sodium reacts with water in a violent way 

The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.

The image seems to be behind the mirror, but nothing is really there.just took the test.