Yes magnesium is a pure substance and it is a element.
Answer:
you should use the scientific name because it is the same everywhere in the world
Explanation:
the scientific name of anything and everything is the same around the world.
You could say that you played outside so you or your dog didn't hit anything important/fragile.
You could say that you played with his/her favourite soft toys, so that you didn't hurt anyone or again break anything.
You can say that you did your tests in a safe place where no one could get hurt.
Hopefully this helps, let me know if you need more answers.
Answer:
He's flying and was looking
Explanation:
Answer:
Enthalpy of vaporization = 30.8 kj/mol
Explanation:
Given data:
Mass of benzene = 95.0 g
Heat evolved = 37.5 KJ
Enthalpy of vaporization = ?
Solution:
Molar mass of benzene = 78 g/mol
Number of moles = mass/ molar mass
Number of moles = 95 g/ 78 g/mol
Number of moles = 1.218 mol
Enthalpy of vaporization = 37.5 KJ/1.218 mol
Enthalpy of vaporization = 30.8 kj/mol
