<span>When you eat breakfast in the morning, your body digests that food and breaks it down. This of course requires a chemical reaction. Hope this helped!</span>
Answer is 0.10 mol.
<em>Explanation;</em>
n = m/M
Where n is number of moles (mol), m is the mass of substance (g) and M is the molar mass of the substance (g/mol).
n = ?
m = 0.40 g
M = 4.0 g/mol
From substitution,
n = 0.40 g /4.0 g/mol
n = 0.10 mol
Hence, the balloon has 0.10 mol of He.
Answer: ( Outwash )
hope this helps!
If a neutral element has 4 electrons in its
4P shell then its electron configuration is 1S2 2S2 2P6 3S2 3P6 3D10 4P4. therefore the sum of electrons = 2+2+6+2+6+10+4=32 electrons
since the element is neutral, so number of electrons = number of protons. hence number of protons that element has is 32
the only element that has 32 protons is germanium
so the answer is Ge
I don’t know about 1 But number 2 is AB + xH2O = AB.xH2O
