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Musya8 [376]
3 years ago
9

Waves that can travel through empty space are called

Chemistry
1 answer:
ExtremeBDS [4]3 years ago
7 0

Answer:

Hello, <em>Otaku Kun </em>Here! >:3

Explanation:

Electromagnetic waves? This is also called light!

<em>hope this helps!</em>

<em>from: Otaku Kun! ^^</em>

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Norma-Jean [14]

Answer:

the first one to the third box

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Explanation:

5 0
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The following thermochemical equation is for the reaction of nitrogen(g) with oxygen(g) to form nitrogen dioxide(g). N2(g) + 2O2
Rzqust [24]

<u>Answer:</u> The mass of nitrogen gas reacted to produce given amount of energy is 5.99 grams.

<u>Explanation:</u>

The given chemical reaction follows:

N_2(g)+2O_2(g)\rightarrow 2NO_2(g);\Delta H=66.4kJ

We know that:

Molar mass of nitrogen gas = 28 g/mol

We are given:

Enthalpy change of the reaction = 14.2 kJ

To calculate the mass of nitrogen gas reacted, we use unitary method:

When enthalpy change of the reaction is 66.4 kJ, the mass of nitrogen gas reacted is 28 grams.

So, when enthalpy change of the reaction is 14.2 kJ, the mass of nitrogen gas reacted will be = \frac{28}{66.4}\times 14.2=5.99g

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3 years ago
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3 years ago
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In the picture you may see the chemical equation and the structure of the products.

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