Answer:
To separate an insoluble solid from a soluble solid: Mixing the mixture with water, filtering out the insoluble solid, and then evaporating the water to isolate the soluble solid.
Explanation:
Given that the gas inside the balloon is an ideal gas, then the ideal gas equation can be used to describe the system. I think the correct answer from the choices listed above is option B. If the balloon is heatedto a temperature of 15.5T while it is placed under a high pressure of 15.5P, then the volume of the balloon stays the same since the change in temperature corresponds to same degree of change with pressure.
Dear friend,
Because the water remains water throughout this process, it is not undergoing any chemical change. There is no new substance or element added but only a change of form.
Answer:
E) None of these
Explanation:
For this question, we must remember the definition of a <u>chiral carbon</u>. In the chiral carbons, we have <u>four different groups</u> around the carbon.
So, an achiral molecule would be a molecule that does not have chiral carbons. That is, in an achiral molecule in all carbons we have at least one repeating group.
In all the molecules, which we have in the question, we have absolute configuration. That is, we have chiral carbons. In molecule A we have two chiral carbons (R and R), in molecule b we have two chiral carbons (R and S), in molecule c we have two chiral carbons (S and S) and in molecule d we have two chiral carbons (R and S). <u>Therefore in all molecules, we have chiral carbons.
</u>
Now, if we analyze molecules a and c, we have a <u>plane of symmetry</u>. If we have a plane of symmetry, even though there are chiral carbons, there will be <u>no optical activity</u>. That is, these molecules do not have the ability to deflect polarized light despite having chiral carbons. Therefore molecules a and c are <u>meso compounds</u>.
<em>But optical activity is not related to chirality.</em>
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See figure 1 to further explanations
I hope it helps!
Answer:
C is false
Explanation:
All matter is made up of elements, all elements are made up of atoms, and matter can be both living and nonliving.