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zhuklara [117]
2 years ago
9

Waves move fastest in?

Chemistry
2 answers:
DochEvi [55]2 years ago
6 0

Answer:

High temperature solids

Explanation:

Just got the quiz done

Lemur [1.5K]2 years ago
4 0
I don’t know maybe lowest temp who knows idek it’s kind aidela like that but ok bud
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Assume that coal can be represented by the chemical formula C135H96O9NS. If 4.0 tons of coal is burned, what mass of nitrogen is
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Answer:

0.02 tons of NO produced when 4 tons of coal is burned

Explanation:

From the given,

Chemical formula of coal =  C_{134}H_{96}O_{9}NS

Molecular mass of coal = (134\times12)+(9\times1)+(9\times16)+14+32\,=1906.1gm

Let’s calculate the mass of nitrogen in coal

Percentage\,weight\,of\,nitrogen=\frac{Mass\,of\,nitrogen}{Molecular\,mass\,of coal}

Percentage\,weight/,of/,nitrogen=\frac{14}{1906.1}=0.73%

Amount of coal burnt = 4tons

Amount of NO produced by burning 4tons = 4\,tons\,of\,coal\times \frac{0.73tons}{100\,tons\,of\,coal}=0.0292\,tons

This nitrogen is converted into NO by reacting with atmospheric oxygen.

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3 years ago
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Which letter pattern best represents seafloor spreading? (Hint: Letter "f" represents the mid-
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Explanation:

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How is the Crystal lattice of an ionic compound different from the Crystal formation of a metallic compound
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Answer:

Explanation: For most longer adjectives, the comparative is made by adding the word "more" (for example, more comfortable) and the superlative is made by adding the word "most" (for example, most comfortable). If a 1-syllable adjective ends in "e", the endings are "-r" and "-st", for example: wise, wiser, wisest.

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In naming the compound PCl5, the prefix used with the second element is ____________________.
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Answer:

\boxed {\boxed {\sf Hepta}}

Explanation:

We are given the formula:

PCl_5

This is a molecular formula, because it contains nonmetals.

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2. Second element

The second element is chlorine (Cl). It has a subscript of 5, so we must add the prefix of <u>hepta</u>-.

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Add the ending of -ide.

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The prefix used for the second element is hepta. The compound name is phosphorous heptachloride.

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To determine the pH of a solution using a pH indicator paper, you need a .
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PH is the water and it color blue

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