It has 1 valence electron.
Answer: When the air particles inside the balloon become colder, they slow down and do not hit the inside of the balloon as often, so the balloon's volume decreases.
Answer:
the product and the reactant must be balanced
if u are required to give the mechanism if the reaction it must be written
Hey there,
I would conclude that your correct answer would be "physical". When the nitrogen gas get's very cold, this would be considered a physical change. The are properties that have physical properties.
Hope this helps.
~Jurgen
Answer:
The molar volume of a gas is the volume of one mole of a gas at STP. At STP, one mole (6.02 × 1023 representative particles) of any gas occupies a volume of 22.4 L (Figure below). A mole of any gas occupies 22.4 L at standard temperature and pressure (0°C and 1 atm).
Explanation: