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morpeh [17]
3 years ago
12

Which statement about gases is true?

Chemistry
1 answer:
Marat540 [252]3 years ago
6 0

Answer:

B) They are made up of particles that travel in a curved path when in motion.

Explanation:

We know that gas, being a state of matter, is made up of particles. John Dalton's solid-sphere model was proven to be incorrect by Ernest Rutherford's gold foil experiment.

These particles do NOT always move very slowly. There are multiple different factors that affect the speed of the particles such as temperature or concentration.

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Which of the following molecules link together to form starch?
Phoenix [80]
The correct answer is A) Glucose

Polymers of Glucose are what we commonly call starch.
3 0
3 years ago
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A sample of the chiral molecule limonene is 79% enantiopure. what percentage of each enantiomer is present? what is the percent
Degger [83]

Answer :  The % of (+) limonene isomer = 79%


                The % of (-) limonene isomer = 0%


                The % of enantiomeric excess = 58%


Explanation :   Enantiomeric excess (ee) is the measurement of purity used for chiral substances.


Given,


% of pure limonene enantiomer = The % of (+) limonene isomer = 79%


Therefore, The % of (-) limonene isomer = 0%


Formula used :  

\%(+)\text{ isomer}=\frac{ee}{2}+50\%


Where,         ee → enantiomeric excess


Now, put all the values in above formula, we get the value of enantiomeric excess (ee).


     {ee}=\frac{\%(+)-50\%}{2}


            =\frac{79\%-50\%}{2}


              = 58%



7 0
3 years ago
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Which coefficient placed before HCl will balance the following<br> equation? Zn+HCI ZnCl2 + H2
cupoosta [38]

Explanation:

Given chemical equation

Zn + HCL ➡ ZnCl2 + H2

Now balancing

Zn + 2HCL ➡ ZnCl2 + H2

Hope it will help :)❤

3 0
3 years ago
Which of the following is a neutralization reaction?
MrRa [10]

Answer:

B

Explanation:

B, Hcl + NaoH = NaCl + H2O

6 0
3 years ago
Helpppppppppp please please
balandron [24]
#48 might be (A) but in not for sure
3 0
4 years ago
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