Answer:
2.13 g
Explanation:
(142.04)(0.0150) = 2.13 g
The chemical reaction is the oxidation of calcium metal by molecular oxygen. During the reaction, calcium metal is oxidized, that is, loses electrons and oxygen is reduced, that is gains electrons.
During the reaction, the calcium atom donate two electrons in order to become stable and the oxygen atom accepts these two electrons. Therefore, during the reaction, EACH OXYGEN ATOM GAINS TWO ELECTRONS.
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Q6
a) HCl dipole-dipole --> higher
I2 london dispersion
b) CH3F H-bonding --> higher ( higher Molecular mass)
CH3OH H-bonding
c) H2O H-bonding --> higher
H2S dipole-dipole
d) SiO2 dipole-dipole --> higher (the difference is higher in the electronegativity )
SO2 dipole-dipole
e) CH3OH H-bonding
CuO ionic-dipole --> higher because it is ionic compound
f) NH3 H-bonding (higher)
CH4 london dispersion
g) HCl dipole-dipole
NaCl ionic dipole--> HIGHER ionic compound
h) SiC london dispersion
Copper metallic bond --> higher
Answer:
Explanation:
Zn + 2HCl ⇄ ZnCl₂ + H₂
A system in equilibrium will try to annul any stress placed on the system for it to maintain the equilibrium position.
For reactions in which concentration changes are effected, the equilibrium shifts to the right if the concentration of species on the reactant side is increased and vice versa.
In the reaction above, if the concentration of the HCl is decreased, the equilibrium will shift to the left in order to increase back the concentration of both the Zn and HCl. Therefore, the acid HCl will become more acidic.
0.0134g Fe 0.00769g S 0.0115g O
56 32 16
1 1 3
Answer= FeSO3
