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3 years ago

the combustion of a sample butane, C4H10 (lighter fluid) produced 2.46 grams of water. how many moles of water formed

1 answer:

6 0

$2C_4H_{10}+13O_2$ ⇒ $8CO_2 + 10H_2O$

$n= \frac{m}{M} = \frac{m}{2M(H)+M(O)}= \frac{2,46}{2*1,0+16,0} = 0,14mol$

So 0,14mol are formed.

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Potassium and iodine have formed a bond. Prior to this the potassium gave up an electron. It became a _____.

Sliva [168]

Neutral ion because f das fds f d fd f d f f sdf f sd fds

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3 years ago

Read 2 more answers

What other traits besides phisical ones could be passed on from parent offspring

OlgaM077 [116]

Answer:

Love for Music

Explanation:

This is one example of many non-physical traits. In the womb a mother can listen to her favorite music and the growing baby could grow to like it in the womb!

This is just one of the many other traits that could be passed to their offspring.

Hope this Helps!

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2 years ago

How do everyday activities like driving a car and using electricity lead to global warming

Lapatulllka [165]

Ahh. The chain reaction.
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You know when you are surfing the web, your parents tell you, or you surf the web, that you see some things like "STOP GLOBAL WARMING?"
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Yep, I have, at least.
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Well, let's see about the chain reaction...
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You see, where does our energy come from?
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Yes, windmills and solar cells...
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but also nuclear and power plants, no?
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The power plants emit carbon dioxide that contribute to global warming.
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Now, cars do the same. One car may not seems like a lot of carbon dioxide...
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But... this many cars multiplied by 9 trillion times 9 trillion and much more... is...


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Well, you know the difference.
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They contribute to global warming over a period of time, slowly, because they emit carbon monoxide/dioxide.

4 0

3 years ago

What’s the answer to this?

MArishka [77]

Benzene

Benzene has low density than the water itself of about 0.9 g/cm³

Low denisty object than the water usually floats on the water.

Another example: orange peel which floats on water has density of about 0.84 g/cm³

8 0

2 years ago

Which of the statements applies to oxidation?

Charra [1.4K]

Answer:

The correct option is: (A) Ketones cannot be oxidized further

Explanation:

Oxidation refers to the gain of oxygen or the formation of carbon-oxygen bond (C-O bond).

Alcohols are organic compounds containing at least one hydroxyl group. These compounds can be further classified into primary (R-CH₂-OH), secondary (R¹R²CH-OH) and tertiary alcohols (R¹R²R³C-OH).

The partial oxidation of primary alcohol gives aldehyde (R-CHO). Further oxidation of aldehyds gives carboxylic acid (R-COOH). Primary alcohol can also be oxidized directly to carboxylic acid. However, the carboxylic acid can not be further oxidized.

$R-CH_{2}-OH \overset{[O]}{\rightarrow} R-CHO \overset{[O]}{\rightarrow} R-COOH \\R-CH_{2}-OH \overset{[O]}{\rightarrow} R-COOH$

Oxidation of secondary alcohols gives ketones (R¹R²C=O), which can not be oxidized further.

$R^{1}R^{2}CH-OH \overset{[O]}{\rightarrow} R^{1}R^{2}C=O$

Whereas, tertiary alcohols are resistant to oxidation.

Therefore, the correct statement regarding oxidation is (A) Ketones cannot be oxidized further.

5 0

3 years ago