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Blizzard [7]
3 years ago
11

PLEASE HELP CHEMITRY!

Chemistry
1 answer:
Delicious77 [7]3 years ago
5 0

Answer:

.

Explanation:

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1. Construct Explanations How does the time at which you see things
vodomira [7]

Answer:

You see things happen much sooner than you hear them.  

Explanation:

Light travels about a million times as fast as sound.

When the ball hits the bat , it will take about a million times longer to hear the crack of the bat than to see it.

What you see is almost instantaneous.

There will be a delay until you hear the sound.

4 0
4 years ago
Which term describes the molecule shown below?
Kisachek [45]

Answer: Saturated alkane

Explanation:

4 0
3 years ago
Which statement is accurate for these two sub-atomic particles.
krek1111 [17]

Answer:

The correct answer is "They are both located in the nucleus".

Explanation:

I had to look for the problem and found that the particles are a Proton and a Neutron.

The atomic nucleus is the central section of an atom, is positively charged and has almost the entire mass of the atom.

The nucleus is formed by protons and neutrons, which are held together by strong nuclear interaction, which allows the nucleus to be stable.

Have a nice day!

8 0
4 years ago
Glucose (C6H12O6)(C6H12O6) can be fermented to yield ethanol (CH3CH2OH)(CH3CH2OH) and carbon dioxide (CO2).
zhenek [66]

Answer: a) 49.8 gram

b) 47.0 %

Explanation:

First we have to calculate the moles of glucose

\text{Moles of glucose}=\frac{\text{Mass of glucose}}{\text{Molar mass of glucose}}=\frac{97.5g}{180.15g/mole}=0.54moles

The balanced chemical reaction will be,

C_6H_{12}O_6\rightarrow 2CH_3CH_2OH+2CO_2

From the balanced reaction, we conclude that

As,1 mole of glucose produce = 2 moles of ethanol

So, 0.54 moles of glucose will produce =  \frac{2}{1}\times 0.54=1.08 mole of ethanol

Now we have to calculate the mass of ethanol produced

\text{Mass of ethanol}=\text{Moles of ethanol}\times \text{Molar mass of ethanol}

\text{Mass of ethanol}=(1.08mole)\times (46.08g/mole)=49.8g

Now we have to calculate the percent yield of ethanol

\%\text{ yield of ethanol}=\frac{\text{Actual yield}}{\text{Theoretical yield }}\times 100=\frac{23.4g}{49.8g}\times 100=47.0\%

Therefore, the percent yield is 47.0 %

7 0
3 years ago
Which of the following is NOT something that Earth's atmosphere protects us from? A. meteoroids B. ultraviolet light C. greenhou
Katarina [22]
The answer in C. Greenhouse Gases. Greenhouse Gases is caused by the trapped heart in the atmosphere harming us which we will always have. hope this helped
8 0
3 years ago
Read 2 more answers
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