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Sonja [21]
4 years ago
15

Balance the following equationAl + O₂ - ALO₃​

Chemistry
2 answers:
Tamiku [17]4 years ago
8 0
Answer:

2Al + 3O2 =====> 2AlO3

Explanation: this equation is wrong!!! It’s Al2O3 not AlO3
baherus [9]4 years ago
6 0

Answer:

2Al + 3O₂ ===> 2ALO₃

Explanation:

2Al + 3O₂ ===> 2ALO₃

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It will be day time and the other side will be night time
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Which has the greatest mass 1 mole of sugar or 1 mole of salt?
egoroff_w [7]

Answer:

im pretty sure its 1 mole of sugar

Explanation:

2.05 oz (58.45 g) of salt and 11.98 oz (342.3 g) of sugar

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3 years ago
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The dissociation of calcium carbonate has an equilibrium constant of Kp= 1.20 at 800°C. CaCO3(s) ⇋ CaO(s) + CO2(g)
Fed [463]

Explanation:

(a)   Formula that shows relation between K_{c} and K_{p} is as follows.

                 K_c = K_p \times (RT)^{-\Delta n}

Here, \Delta n = 1

Putting the given values into the above formula as follows.

        K_c = K_p \times (RT)^{-\Delta n}

                  = 1.20 \times (RT)^{-1}

                  = \frac{1.20}{0.0820 \times 1073}

                  = 0.01316

(b) As the given reaction equation is as follows.

               CaCO_{3}(s) \rightleftharpoons CaO(s) + CO_{2}(g)

As there is only one gas so ,

                p[CO_{2}] = K_{p} = 1.20

Therefore, pressure of CO_{2} in the container is 1.20.

(c)   Now, expression for K_{c} for the given reaction equation is as follows.  

             K_{c} = \frac{[CaO][CO_{2}]}{[CaCO_{3}]}

                        = \frac{x \times x}{(a - x)}

                        = \frac{x^{2}}{(a - x)}[/tex]

where,    a = initial conc. of CaCO_{3}

                  = \frac{22.5}{100} \times 9.56

                  = 0.023 M

          0.0131 = \frac{x^{2}}{0.023 - x}

                  x = 0.017

Therefore, calculate the percentage of calcium carbonate remained as follows.

       % of CaCO_{3} remained = (\frac{0.017}{0.023}) \times 100

                                  = 75.46%

Thus, the percentage of calcium carbonate remained is 75.46%.

3 0
4 years ago
Is acetone a compound, an element or heterogeneous or homogeneous
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Answer:

Acetone is a compound.

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What is the chemical law?
NeTakaya

Answer:

Chemical laws are those laws of nature relevant to chemistry. The most fundamental concept in chemistry is the law of conservation of mass, which states that there is no detectable change in the quantity of matter during an ordinary chemical reaction. Modern physics shows that it is actually energy that is conserved, and that energy and mass are related; a concept which becomes important in nuclear chemistry. Conservation of energy leads to the important concepts of equilibrium, thermodynamics, and kinetics.

Explanation:

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