4 years ago

What happens as a liquid freezes?

Chemistry

2 answers:

Sindrei [870]4 years ago

8 0

The particles bunch together and can no longer move

Talja [164]4 years ago

4 0

The liquid turns into a solid as the freezing occurs and then the molecules of the liquid then slow down, and into an organized position for when it turns into a solid.

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user100 [1]

Answer:

Explanation:

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3 years ago

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If the absolute temperature of a gas is 600 K, the temperature in degrees Celsius is

Olenka [21]

K = C + 273
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3 years ago

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dmitriy555 [2]

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3 years ago

a sample of cobalt (specific heat of Co=0.418J/G C )at 100.0 C is dropped into a calorimeter containing 500.0 mL of water at 21.

Alex17521 [72]

Answer:

$m_{Co}=6998g=7.0kg$

Explanation:

Hello there!

In this case, according to this equilibrium temperature problem, we can set up the following equation to relate the mass, specific heat and temperature change:

$Q_{Co}=-Q_{w}\\\\m_{Co}C_{Co}(T_f-T_{Co})=-m_{w}C_{w}(T_f-T_{w})$

Thus, we solve for the mass of cobalt as shown below:

$m_{Co}=\frac{-m_{w}C_{w}(T_f-T_{w})}{C_{Co}(T_f-T_{Co})} \\\\m_{Co}=\frac{-500.00g*4.184J/g\°C(67.1\°C-21.1\°C)}{0.418J/g\°C(67.1\°C-100\°C)} \\\\m_{Co}=6998g=7.0kg$

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3 years ago

Is the law of conservation of mass valid during chemical reactions?

Elan Coil [88]

YES LAW OF CONSERVATION OF MASS IS VALID DURING BECAUSE IT STATE THAT THE TOTAL MASS OF PRODUCTS MUST BE EQUAL TO THE TOTAL MASS OF REACTANT

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