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Korvikt [17]
3 years ago
14

(CH3)2N2H2 + N2O4 → N2 + H2O + CO2 + heat [balance?]​

Chemistry
1 answer:
Rasek [7]3 years ago
7 0
<h3>Answer:</h3>

2(CH3)2N2H2 + 3N2O4 → 4N2 + 4H2O + 4CO2 + heat

<h3>Explanation:</h3>
  • Balancing chemical equations involves putting coefficients on reactants and products.
  • This results in an equal number of atoms of each element on either side of the equation.
  • Balancing chemical equations ensures that the law of conservation of mass is obeyed.
  • According to the law of conservation of mass, the mass of the reactants should be equal to the mass of products which is done by balancing chemical equations.
  • Putting the coefficients, 2, 3, 4, 4, 4 on the equation makes the equation balanced.
  • Therefore, the balanced equation would be;

       2(CH3)2N2H2 + 3N2O4 → 4N2 + 4H2O + 4CO2 + heat

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Answer: 66

Explanation: To find the mass number you would have to add the number of protons and the number of neutrons.

3 0
2 years ago
What neutral element has the electron configuration described by the Aufbau diagram above.​
devlian [24]

Answer:

Aluminium.

Explanation:

The above electronic configuration can be written in a simplified form as shown below:

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Next, we shall determine the number of electrons in the atom of the element as follow:

Number electron = 2 + 2 + 6 + 2 + 1

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Next, we shall determine the number of protons.

Since the element is in its neutral state,

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Next, we shall determine the atomic number of the element.

The atomic number of an element is simply the number of protons in the atom of the element i.e

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Comparing the atomic number of the element with those in the periodic table, the element with the above electronic configuration is aluminium since no two elements have the same atomic number.

5 0
3 years ago
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3 years ago
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5 0
3 years ago
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