Answer:
2)Both the salt dissolving and the evaporation of water are physical changes.
Explanation:
The two kinds of changes that has occurred are both physical changes.
Dissolution of a solute such as salt in water and evaporation of water from a solution are physical changes.
A physical change is one in which the physical property of matter is altered. Particularly the state and the form.
In many of these cases, the change is easily reversible.
Since this change is reversible in that we were able to collect the salt back, this is a physical change.
B.
its the only one with ozone in the reaction O₃
Thorium 234 is the daughter product of Uranium-238 decays whereas protactinium 234 is the daughter product of Thorium -228.
<h3>What are the products of
Uranium-238 and Thorium -228?</h3>
If an atom of Uranium-238 decays via alpha emission, a nucleus of uranium 238 decays by alpha emission to form a daughter nucleus, thorium 234 while If an atom of Thorium -228 decayed via beta emission, the daughter isotope is protactinium 234.
So we can conclude that thorium 234 is the daughter product of Uranium-238 decays whereas protactinium 234 is the daughter product of Thorium -228.
Learn more about isotope here: brainly.com/question/14220416
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<u>Answer:</u> The ratio of the mass ratio of S to O in SO to the mass ratio of S to O in is 2.
<u>Explanation:</u>
We are given:
Mass of sulfur = 32 grams
Mass of oxygen = 16 grams
- <u>Taking SO molecule:</u>
A chemical compound having a chemical formula of SO
Mass of Sulfur in SO = 32 g
Mass of Oxygen in SO = 16 g
Mass ratio of Sulfur to oxygen in SO = .....(1)
- <u>Taking molecule:</u>
A chemical compound having a chemical formula of
Mass of Sulfur in = 32 g
Mass of Oxygen in = (2 × 16) = 32 g
Mass ratio of Sulfur to oxygen in = .....(2)
Taking ratio of 1 and 2, we get:
Hence, the ratio of the mass ratio of S to O in SO to the mass ratio of S to O in is 2.