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Anna71 [15]
3 years ago
13

Why is absolute zero

Chemistry
2 answers:
weeeeeb [17]3 years ago
8 0
I think it is D
Hope this help you?
Dvinal [7]3 years ago
5 0

Answer:

b

Explanation:

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Match the vocabulary with the definitions.
Fiesta28 [93]

1: Decomposition reaction
2: Combination reaction
3: product
4: Reactant
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3 years ago
A car travels 66 kilometers in 3 hours. what is its speed
Ne4ueva [31]

Answer:

22 kph

Explanation:

You simply divide the distance and the time. 66/3 = 22.

8 0
3 years ago
Read 2 more answers
When a 2.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of 1.28 kJ ⋅ K − 1 , the tempe
Alchen [17]

Answer : The molar heat of solution of KCl is, 17.19 kJ/mol

Explanation :

First we have to calculate the heat of solution.

q=c\times (\Delta T)

where,

q = heat produced = ?

c = specific heat capacity of water = 1.28kJ/K

\Delta T = change in temperature = 0.360 K

Now put all the given values in the above formula, we get:

q=1.28kJ/K\times 0.360K

q=0.4608kJ=460.8J

Now we have to calculate the molar heat solution of KCl.

\Delta H=\frac{q}{n}

where,

\Delta H = enthalpy change = ?

q = heat released = 460.8 J

m = mass of KCl = 2.00 g

Molar mass of KCl = 74.55 g/mol

\text{Moles of }KCl=\frac{\text{Mass of }KCl}{\text{Molar mass of }KCl}=\frac{2.00g}{74.55g/mole}=0.0268mole

Now put all the given values in the above formula, we get:

\Delta H=\frac{460.8J}{0.0268mole}

\Delta H=17194.029J/mol=17.19kJ/mol

Therefore, the molar heat of solution of KCl is, 17.19 kJ/mol

7 0
3 years ago
Is mixing sodium and water a physical or a chemical change
adoni [48]

Answer:

physical

Explanation:

3 0
4 years ago
Fragilidad de metales​
Lemur [1.5K]

Answer: La fragilidad es la propiedad de algunos metales de no poder experimentar deformaciones plásticas, de forma que al superar su límite elástico se rompen bruscamente. La acritud es la propiedad de un metal para aumentar su dureza y su resistencia por el efecto de las deformaciones.

Explanation: y estas en el Brianly de ingles no el de español.

7 0
2 years ago
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