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sattari [20]
2 years ago
13

Element with 7 protons and 7 neutrons

Chemistry
2 answers:
Sladkaya [172]2 years ago
6 0

Answer:

Nitrogen

Explanation:

It has 7 protons, 7 neutrons, and 7 electrons

I am Lyosha [343]2 years ago
3 0

Answer:

Nitrogen

Explanation:

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iren2701 [21]

Mechanism for oxidation of alkene by KMnO₄ is provided in the attached image:

6 0
2 years ago
Answer Quick
kow [346]

Answer:

20.9%

Explanation:

  • The percentage by mass of solution is given by dividing the mass of solute in grams by the mass of solution in grams then multiplying it by 100%.

% Mass of solution = mass of solute/mass of solution × 100%

                               = (27.0 g/ 129.0 g) × 100%

                               = 20.93%

                               = 20.9%

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2 years ago
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The second-order rate constants for the reaction of oxygen atoms witharomatic hydrocarbons have been measured (R. Atkinson and J
Pepsi [2]

Answer:

A = 1,13x10¹⁰

Ea = 16,7 kJ/mol

Explanation:

Using Arrhenius law:

ln k = -Ea/R × 1/T + ln(A)

You can graph ln rate constant in x vs 1/T in y to obtain slope: -Ea/R and intercept is ln(A).

Using the values you will obtain:

y = -2006,9 x +23,147

As R = 8,314472x10⁻³ kJ/molK:

-Ea/8,314472x10⁻³ kJ/molK = -2006,9 K⁻¹

<em>Ea = 16,7 kJ/mol</em>

Pre-exponential factor is:

ln A = 23,147

A = e^23,147

<em>A = 1,13x10¹⁰</em>

<em></em>

I hope it helps!

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2 years ago
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ANEK [815]
4I+5O2=I4O10? which would be a synthesis reaction
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<em>Answer:</em>

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<em>Explanation:</em>

  • When sulfur dioxide react with water vapors, they form sulphuric acid.
  • Similarly, when NOx reacts with water vapors to form HNO2 and HNO3.
  • So these acid cause the rain water into acidic rain.

4 0
3 years ago
Read 2 more answers
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