Answer:
-1160kj/mol
Explanation:
the reaction is exothermic because heat is released to the environment
Answer:
9
Explanation:
mass number = protons + neutrons
= 4 + 5 = 9
Answer:
okay lol, ima use this for points if okay
Explanation:
The notion <span>an empty balloon have precisely the same apparent weight on a scale as a balloon filled with air depends on the diameter of the balloon. The weight of the balloon filled with air is equal to the mass of the balloon and the mass of the air inside. The mass of air inside is equal to the density of air multiplied by the volume of the balloon. If the balloon is large, then the two masses are equal whereas if not, the mass of air inside the inflation is neglible</span>
