Answer:
This involves negatively charged particles (electrons) jumping to positively charged objects. When you rub the balloons against the fabric they become negatively charged. They take some of the electrons from the fabric and leave them positively charged.
Explanation:
Negative charges attract to positive charges. If a balloon is not rubbed with the wool cloth, it has an equal amount of negative to positive charges, so it will attract to a rubbed balloon. When both balloons are rubbed with the wool cloth, the both receive negative charges, so they will repel each other.
The last set which is n=4 l=3 m=3 is a valid set
Explanation:
sodium atom is neutral while sodium ion is a charged specie with a charge of +1
Answer is B. Releases heat and is exothermic
The answer is 303 K, to find K you have to add 273 to the °C
