Net overall dissociation:
Na2CO3 ---> 2Na(-) + CO3(2-)
*The ion charge is in parenthesis
Answer:
Energy
potential energy kinetic energy
chemical energy thermal energy
joules
Explanation:
chemical energy is a type of potential energy or stored energy. Heat is a kinetic energy and energy is measured in joules.
Answer:
24.45 L
Explanation:
From General gas equation,
PV/T = P'V'/T'.................... Equation 1
Where P = initial pressure, V = Initial volume, T = Initial Temperature, P' = Final pressure, V' = Final Volume, T' = Final Temperature.
make V' the subject of the equation.
V' = PVT'/(TP')................. Equation 2
Given: P = 760 torr, V = 22.4 L, T = 0 °C = (0+273) = 273 K, T' = 25 °C = (25 + 273) = 298 K, P' = 760 torr
Substitute into equation 2
V' = 760(22.4)(298)/(760×273)
V' = 24.45 L.
Hence the volume of the gas = 24.45 L
2 PO₄³⁻ (aq) + 3 Co²⁺ (aq) → Co₃(PO₄)₂ (s)
Explanation:
molecular equation:
2 Na₃PO₄ + 3 CoCl₂ → Co₃(PO₄)₂ + 6 NaCl
ionic equation:
6 Na⁺ (aq) + 2 PO₄³⁻ (aq) + 3 Co²⁺ (aq) + 6 Cl⁻ (aq) → Co₃(PO₄)₂ (s) + 6 Na⁺ (aq) + 6 Cl⁻ (aq)
we remove the spectator ions to get the net ionic equation:
2 PO₄³⁻ (aq) + 3 Co²⁺ (aq) → Co₃(PO₄)₂ (s)
were:
(aq) - aqueous
(s) - solid
Learn more about:
net ionic equation
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