Answer:different elements have different number of electrons and shells/orbits thatswhy it have different atomic mass and size.
Explanation:
The maximum temperature that a PVC can withstand is 130° C. Beyond this the PVC will melt. From the choices given the correct answer is option D. 130° C.
Sound waves can move through various mediums. Similar to the way we can hear a car horn from outside of a house, the sound waves will, however dampened, still pass through mediums, in this case being the wall of a house.
Answer:
Explanation:
Mole = no. Molecules/6.02×10^23
Mole = (2.35×10^24)/(6.02×10^23)
Mole = 3.9mole
