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Sedaia [141]
3 years ago
15

Does a balanced force only occur on an object that is not moving? a. true b. false

Chemistry
1 answer:
MrRa [10]3 years ago
8 0

Answer:

b false

Explanation:

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Carbohydrates make up 75% of the mass of dried plant material. Cotton is at least 95% carbohydrate. Why do humans not include co
Darina [25.2K]

Answer:

the carbohydrates in cotton are mainly cellulose, but our body does not possess the proper enzymes to process cellulose, no we don't eat cotton on in our daily diet.

4 0
3 years ago
How many centimeters are there in 4.84 x 10 kilometers
dezoksy [38]

Answer:

4,840,000 centimeters

Explanation:

4 0
3 years ago
What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K, that is compressed to a final
maksim [4K]

Hey there!:

V1 = 3.05 L

V2 = 3.00 L

P1 = 724 mmHg

P2 = to be calculated

T1 = 298 K

T2 = 273 K

Therefore:

P1*V1  / T1  = P2*V2 / T2

P2 = ( P1*V1 / T1  )   * T2 / V2

P2 = 724 * 3.05 * 273 / 298 * 3.00

P2 = 602838.6 / 894

P2 = 674.31 mmHg

1 atm ----------- 760 mmHg

atm ------------- 674.31 mHg

= 674.31 * 1 / 760

= 0.887 atm

Hope this helps!

5 0
4 years ago
Three compounds of carbon, hydrogen, and oxygen exist:
frosja888 [35]
London dispersion is present, as we can see C3H5(OH)3 is very branched, when a molecule is branched it has a low boiling point due to how compact the surface area is compare to C3H7OH which has a large surface area (in this molecule there is only on branch)

6 0
3 years ago
Read 2 more answers
A vitamin c tablet containing 250 mg of ascorbic acid (c6h8o6; ka=8.0×10−5) is dissolved in a 250 ml glass of water. what is the
ikadub [295]
First, we have to get the initial [C6H8O6] = mass/molar mass
 
when the molar mass of C6H8O6 = 176.12 g/mol

∴[C6H8O6] = 0.25 g / 176.12 g/mol 
                    = 0.00142 M

when 
               C6H8O6 ⇄  H+   +  C6H7O6-
intial       0.00142 M       0           0
change    -X                   +X          +X
Equ       (0.00142-X)         X            X
 

so, Ka = [H+][C6H7O6-] / [C6H8O6]

by substitution:

8 x 10^-5 = X * X / (0.00142-X) by solving this equation for X

∴ X = 0.000299 
∴[H+] = 0.000299

∴PH = -㏒[H+]
     
        = -㏒ 0.000299
        = 3.52
6 0
3 years ago
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