The atom of chlorine has <span>several valence electrons in its</span> valence electrons are in the third shell.
7. An exothermic reaction
8. The bonds are forming
Hydrogen reduces the oxides of the less active metals, viz. removes oxygen from strongly heated metal oxides when passed over them, and in the process gets oxidized itself to water.
Both alkali metals and Hydrogen acts as a reducing agent which is proved by the following reactions:-
CuO + H2 Cu + H2O
CuO + 2Na Cu + Na2O
In both cases CuO is oxidised.
<span>Moles of aluminum carbonate = Mass / Molar mass
= 47.6 g / 233.99 g molâ’1
=0.203 mol
To find moles of oxygen:
In each mole of the carbonate there are 9 moles of oxygen
And thus there are 9 Ă— 0.203 moles of oxygen in the given quantity.
= 1.83 moles of oxygen
Within one mole of oxygen, we have 6.022 x 10^23 atoms
Amount of atoms within 1.827 moles of oxygen = 1.83 x 6.022 x 10^23
= 1.10 x 10^24 atoms</span>
