Molar mass of A l 2 (S O 4 ) 3 = 342.15 g/mol
7.2g/ 342.15 g/mol
you can get number of moles.
then multiply that by12
Answer:
4
Explanation
Trailing zeros in decimals count as significant figures.
The electron configuration that represents the nitride ion<span> is 1s² 2s²2p⁶</span>
Answer:
D alpha particles
Explanation:
Radioactive U-238 will decay into Thorium -232 by emitting alpha particles in the process of nuclear fission.
Nuclear fission is the radioactive decay process in which a heavy nucleus spontaneously disintegrates into two lighter ones and several other particles with a large release of energy.
U-238 → Th-232 + alpha particles + 2 neutrons + energy
This way the mass and atomic numbers are conserved;
Yes, air resistance does slow the paper down. This is because the paper is a wide object, with a lot of surface area. The larger the surface area, the more air resistance will affect the object.
