Answer:35
Explanation:because 10x10
Energy=mass*the speed of light^2
The relationship between energy released and the mass of an object.
Answer:
C
Explanation:
A year is a complete revolution around the Earth
Answer:
8.87 * 10^23 molecules of Ne
Explanation:
STP means standard temperature and pressure which is 0 degree Celsius and 1 atm. There's a law that says at STP 1 mole of any gas at occupies 22.4 liters of volume. We are gonna use this to do our conversion.
33.0 L Ne * 1mol Ne/22.4L Ne = 1.47321428571 mol Ne (this is moles of Neon)
Now we know avogadro number says there's 6.022*10^23 molecules in 1 mole of anything so we use this to convert the previously calculated moles of Neon to moleculues.
1.47321428571 mol Ne * 6.022*10^23 molecules/1mol Ne = 8.87 * 10^23 molecules of Ne
2Al + 3CuCl2 ------> 3Cu + 2AlCl3
from reaction 2 mol 3 mol
given 0.357 mol x mol
x= 0.375*3/2 = 0.563 mol CuCl2