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3 years ago

NEED HELP ASAP!!!!! PLEASE HELP!!!!! NEED HELP ASAP!!!!!

Chemistry

1 answer:

r-ruslan [8.4K]3 years ago

3 0

Answer:

CH4 - Methane

B2Si - Diboron monosilicide

N2O5 - Dinitrogen pentoxide

CO2 - Carbon dioxide

Explanation:

When it comes to naming covalent compounds, there are several rules.

The name is derived based on the formula. For example, N2O5. The first element is nitrogen. To the name of the element, you add the prefix that tells us how many of its atoms are in the compound. In this case, there are two atoms, which means that the prefix will be <em>di</em>- (dinitrogen). The second element is oxygen. You are supposed to take only the root of the second element's name and then add the prefix denoting the number of its atoms and the suffix <em>-ide</em> (pentoxide). This is how we'll get dinitrogen pentoxide.

The only exception is methane (CH4), which is an organic compound. Organic compounds are named using the IUPAC nomenclature.

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<h2>Answer:HCl</h2>

Explanation:

$\text{number of moles}=\frac{\text{given mass}}{\text{molar mass}}$

For $NH_{3},$

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$\text{molar mass}=14+3=17g$

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For $HCl,$

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$\text{molar mass}=1+35.5=36.5g$

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The reaction between $NH_{3}$ and $HCl$ is

$NH_{3}+HCl$ → $NH_{4}Cl$

So,one mole of $NH_{3}$ requires one mole of $HCl$

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$HCl$ will be consumed first.

So, $HCl$ is the limiting reagent.

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3 years ago

You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O, and you find that 561 mg of

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The combustion of an organic compound is mostly written as,
CaHbOc + O2 --> CO2 + H2O
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3 years ago

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3 years ago