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weeeeeb [17]
3 years ago
5

1. the ball has no energy

Chemistry
1 answer:
V125BC [204]3 years ago
5 0

Answer:

2

Explanation:

It is going through the air and is moving so that means that it has kinetic energy. But it is also going to go the down, which gives it potential energy.

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A reaction was performed in which 4.0 g of cyclohexanol was reacted with an acid catalyst to obtain 2.8 g of cyclohexene. calcul
ioda

Answer:

              %age Yield  =  85.36 %

Solution:

The Balance Chemical Reaction is as follow,

               C₆H₁₂O  +   Acid Catalyst    →    C₆H₁₀  +  Acid Catalyst + H₂O

According to Equation ,

              100 g (1 mole) C₆H₁₂O produces  =  82 g (1 moles) of C₆H₁₀

So,

                       4.0 g of C₆H₁₂O will produce  =  X g of C₆H₁₀

Solving for X,

                      X =  (4.0 g × 82 g) ÷ 100 g

                      X  =  3.28 g of C₆H₁₀   (Theoretical Yield)

As we know,

                     %age Yield  =  (Actual Yield ÷ Theoretical Yield) × 100

                     %age Yield  =  (2.8 g ÷ 3.28 g) × 100

                     %age Yield  =  85.36 %

5 0
3 years ago
Theoretical yield: 35.0g<br> Actual yield: 27.7g<br> What is the percent yield?
maksim [4K]

Answer:

Percentage yield=79.14%

Explanation:

Percentage yield=(Actual yield/theoretical yield)*100

Percentage yield=27.7g/35.0g*100

Percentage yield=79.14%

4 0
2 years ago
as the bright sun shines upon the water the water slowly disappears the same sunlight gives energy to the surrounding plants to
8090 [49]
Well when the sun makes water dissaper thats usually evaporation.

The chemical changes is when the plants absorb the energy from the sunlight and convert water and carbon dioxide into sugar and oxygen gas. Physically nothing has changed. The plant still looks the sam changes occur internally these internal changes are chemical in nature. 
8 0
3 years ago
Explain why are all valence electrons are either in an s or p orbital.
ahrayia [7]

They are two representatives of the sublevels/energy levels.

4 0
3 years ago
If a reaction mixture initially contains a co concentration of 0.1470 and a cl2 concentration of 0.175 at 1000k. what is the equ
NikAS [45]
When we have this equation: 
             CO(g) + Cl2(g) ↔ COCl2(g)
intial   0.147       0.175              0
change -X           -X                 +X
final   (0.147-X)   (0.175-X)          X

so from the ICE table, we substitute in Kc formula :(when we have Kc = 255)

Kc = [COCl2]/[CO][Cl2]
255= X / (0.147-X)(0.175-X)
255 = X / (X^2 - 0.322 X + 0.025725)
X = 0.13
∴[CO] = 0.147 - X = 0.147 - 0.13 
           = 0.017 m
3 0
3 years ago
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