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2 years ago

_ _ _ _ _ P _ _ _ _ _ _ _ mediums allow light to pass through

Chemistry

1 answer:

koban [17]2 years ago

5 0

Answer:

I thought the answer was " T R A N S P A R E N T " but I don't know what the extra two letters are! I'm sorry, that's all I've got..

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How do i design a controlled experiment to appropriately test a hypothesis?

Virty [35]

Answer:

you need only one independent variable because if not, you wont know what factors have changed your experiment.

Explanation:

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3 years ago

A solution is made by mixing equal masses of methanol, CH 4 O , and ethanol, C 2 H 6 O . Determine the mole fraction of each com

Fynjy0 [20]

Answer:

Mole fraction of $CH_4O$ = 0.58

Mole fraction of $C_2H_6O$ = 0.42

Explanation:

Let the mass of $CH_4O$ and $C_2H_6O$ = x g

Molar mass of $CH_4O$ = 33.035 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Moles_{CH_4O}= \frac{x\ g}{33.035\ g/mol}$

$Moles_{CH_4O}=\frac{x}{33.035}\ mol$

Molar mass of $C_2H_6O$ = 46.07 g/mol

Thus,

$Moles= \frac{x\ g}{46.07\ g/mol}$

$Moles_{C_2H_6O}=\frac{x}{46.07}\ mol$

So, according to definition of mole fraction:

$Mole\ fraction\ of\ CH_4O=\frac {n_{CH_4O}}{n_{CH_4O}+n_{C_2H_6O}}$

$Mole\ fraction\ of\ CH_4O=\frac{\frac{x}{33.035}}{\frac{x}{33.035}+\frac{x}{46.07}}=0.58$

Mole fraction of $C_2H_6O$ = 1 - 0.58 = 0.42

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3 years ago

Some animals only have ___ cell.

DaniilM [7]

Animal cells have a centrosome and lysosomes, whereas plant cells do not.

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3 years ago

I need help idk how to do the predicting product

kaheart [24]

Answer:

well if you google how to find predicting product you will find the answer i dont think this counts as my answer but i tryed

Explanation:

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3 years ago

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What is the standard unit used to measure mass? cubic meters gram liter meter

azamat

Your answer is grams

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3 years ago

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___ ___ ___ ___ ___ P ___ ___ ___ ___ ___ ___ ___ mediums allow light to pass through

_ _ _ _ _ P _ _ _ _ _ _ _ mediums allow light to pass through