Answer : The amount of heat required is, 639.3 KJ
Solution :
The conversions involved in this process are :
Now we have to calculate the enthalpy change.
where,
= enthalpy change or heat required = ?
m = mass of Cr = 126.3 g
= specific heat of solid Cr =
= specific heat of liquid Cr =
n = number of moles of Cr =
= enthalpy change for fusion = 20.5 KJ/mole = 20500 J/mole
Now put all the given values in the above expression, we get
(1 KJ = 1000 J)
Therefore, the amount of heat required is, 639.3 KJ
You have the neurons, osteoblasts, machrophages, red blood cells, and myocytes.
The sample response given in the question is right.
To find the answer, we need to know more about the distance and displacement.
<h3>How distance differ from displacement?</h3>
- Displacement is the shortest distance between the initial and final points of a body.
- It is the change in position with a fixed direction.
- Displacement is a vector quantity and can be positive, negative or zero values.
- Distance is the length of actual path of the body between initial and final positions.
- It's a scalar quantity and it can be positive or zero.
- The magnitude of displacement is less than or equal to the distance travelled.
Thus, we can conclude that the given sample response is right.
Learn more about distance here:
brainly.com/question/28124225
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Answer:
The woodpecker population would start to decrease because of natural selection
Explanation:
The percent of SO₂ in H₂SO₄ : 65.3%
<h3>Further explanation
</h3>
Proust states the Comparative Law that compounds are formed from elements with the same Mass Comparison so that compounds have a fixed composition of elements
%Mass A in AxBy =
For SO₂ in H₂SO₄ :
MW SO₂ = 32 + 2.16=64 g/mol
MW H₂SO₄ =2.1+32+4.16=98 g/mol
The percent of SO₂ :