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N76 [4]
3 years ago
9

Can someone help me with this please

Chemistry
2 answers:
dusya [7]3 years ago
6 0
Boiling water: It starts bubbling and it becomes hot
Baking Cake: The cake becomes soft and not liquid
Burning Wood: The wood burns and turns into ash
Painting Door: The color changes and the wood numbs slightly

Hope this helps!
STSN
GuDViN [60]3 years ago
4 0
Boiling water- bubbles, steam , temperature is hot/// Physical
Baking a cake- smell is changing, getting bigger in size/// Chemical
Burning wood- Change of color, fire, hot , smell is changing///Chemical
Painting a door- color is changing, Smell is changing/// Physical
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The percentage recovery is obtained from;

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Consider the equilibrium reaction. 2 A + B − ⇀ ↽ − 4 C After multiplying the reaction by a factor of 2, what is the new equilibr
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Answer : The correct expression for equilibrium constant will be:

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Explanation :

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.

As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

The given equilibrium reaction is,

4A+2B\rightleftharpoons 8C

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K_c=\frac{[C]^8}{[A]^4[B]^2}

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