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3 years ago

Please help as soon as possible

Chemistry

1 answer:

polet [3.4K]3 years ago

6 0

Answer:

A. 2.4 x 10¹⁴ J

Explanation:

m (mass) = 2.7 x 10⁻³ kg

c = 3.0 x 10⁸ m/s

Plug these numbers into the equation E=mc²

E=mc²

E= (2.7 x 10⁻³)(3.0 x 10⁸)²

E= 2.43 x 10¹⁴

So, the answer is A. 2.4 x 10¹⁴ J.

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From the stoichiometry of the balanced reaction equation, the correct statement are;

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For every 20 grams of methane (CH4) that reacts, 40 grams of H2O are produced.
For every 200 moles of methane (CH4) that reacts, 400 moles of H2O are produced.

<h3>What is combustion?</h3>

The term combustion refers to the burning of fossil fuels for the purpose of energy production. The equation for reaction is CH4 + 2O2 ---> CO2 + 2H2O.

Using this equation as shown, the true statements are;

For every 1 molecule of methane CH4 that reacts, 2 molecules of H2O are produced.

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For every 200 moles of methane (CH4) that reacts, 400 moles of H2O are produced.

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2 years ago

Based on the information that is given, which atom is the table ?

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2 years ago

A wooden boat discovered just south of the great pyramid in egypt has a carbon-14>carbon-12 ratio that is 72.5% of that found

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Take the natural logarithm and In on both sides.
ln(0.725) = ln $\frac{1}{2}$ ˣ
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