A 2% saltwater is a dilute solution in which the solvent is water and the solute is salt. The solvent is the component of the solution which comprise a large percentage while the solute comprise the smaller part. When alcohol is added, the solute still is salt and the solvent is the mixture of water and alcohol.
Answer:
B)
Explanation:
Dalton was the first scientist to propose an atomic model. He said that each element is composed of extremely small particles called atoms, which are indivisible, atoms of a given element are identical, and atoms of different elements have different properties.
With the advance of the studies, it was proven that elements are composed of small particles, atoms and that the atoms of each element are identical, and have different properties from atoms of different elements.
But, now we know that the atom can be divisible: it's formed by electrons, protons, and neutrons. So only postulate <em>ii</em> is no longer considered valid.
<h2><em><u>
Answer - </u></em>b) Be the same as in the second method</h2>
<h3>Brief explanation:</h3>
Enthalpy is an state function that does not depend on the path followed to carry out the reaction but depends upon the initial and final state of system. In above statement both the reaction are same hence the enthalpy change would also be same. This can also be represent in the form of equation,
<h3> ΔHsys = Hf - Hi</h3>
Where,
- ΔHsys is change in enthalpy of system
- Hf is enthalpy of reaction at final state
- Hi is enthalpy of reaction at initial state
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The risk that is associated with nuclear fission to produce energy in a power plant is 3) Exposure of workers to radiation.
