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Andreyy89
3 years ago
7

Alana summarized what happens when a ball sitting on top of a grassy hill rolls down the hill.

Chemistry
1 answer:
Gnom [1K]3 years ago
5 0

Kinetic energy isn't made it is converted.

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Use the "x is small" approximation to find the concentration of the products in the following reaction which initially contains
Mrrafil [7]

Answer:

Concentration of product at equilibrium ;

[H^+]=0.0000229 M

[CN^-]=0.0000229 M

Explanation:

HCN(aq)\rightleftharpoons H^+(aq) + CN^-(aq)

initially

0.85 M        0    0

(0.85-x)M    x      x

The equilibrium constant of reaction = K_c= 6.17\times 10^{-10}

The expression of an equilibrium cannot can be written as:

K_c=\frac{[H^+][CN^-]}{[HCN]}

6.17\times 10^{-10}=\frac{x\times x}{(0.85-x)}

Solving for x:

x = 0.0000229

Concentration of product at equilibrium ;

[H^+]=0.0000229 M

[CN^-]=0.0000229 M

4 0
3 years ago
What number would you write before water in the formula for calcium carbonate nonahydrate?
anyanavicka [17]
Water is not part of that compound. What is the chemical equation?
7 0
3 years ago
In a chemical reaction, the mass of the products is equal to __. 11
Deffense [45]
The answer for that is 16, math right?
7 0
3 years ago
For each pair; which has higher kinetic energy?
RideAnS [48]

Explanation:

Kinetic energy is defined as the energy obtained by an object due to its motion. Whereas energy obtained by an object due to its position is known as potential energy.

(a)   When a sled is resting at the top of a hill then it means the sled in not moving. Hence, then it has only potential energy. But when a sled sliding down the hill  then it is moving from its initial position.

Hence, when a sled is sliding down the hill then it has higher kinetic energy.

(b)    When water is above the dam then it only has potential energy but when the water falls over the dam then it has higher kinetic energy.

6 0
3 years ago
Read 2 more answers
Aqueous sodium phosphate and aqueous iron (III) chloride react to produce aqueous sodium chloride and solid iron (III) phosphate
mojhsa [17]

Answer:

this one is hard

Explanation:

but it's iron because the sodium so yea there u go.

4 0
2 years ago
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