Wax will be dissolved by nonpolar solvents: (a) hexane, (b) benzene and (d) carbon tetrachloride
Wax will not be dissolved by polar solvent such as (c) acetone and (e) water
The answer to this question is photosynthesis.
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Answer:</h2>
<h2>The correct option is:</h2>
<h3>D. Actions of Electrons</h3>
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Explanation:</h2>
<h3 /><h3>Bonds are formed when valence electrons, the electrons in the outermost electronic “shell” of an atom, interact. </h3>
<h2>Hope it help you </h2>
<span>I believe that in this
case the controlled parameter is the type of animal that they are observing.
There are a lot of animals in the ocean, therefore to have a scope of their
study of observation, they are controlling or limiting their observations on
the whale alone. Hence the controlled parameter is the type of animals, whales.</span>
Answer:
high electronegativity difference between oxygen and hydrogen
Explanation:
The electronegativity value of O and H are 3.5 and 2.1 respectively. The electronegativity difference of the O-H bond in H₂O is 1.4.
- When the elctronegativity difference between two atoms in bond is below 0.5 the bond is nonpolar covalent.
- When the elctronegativity difference between two atoms in bond is between 0.5 and 2.0 the bond is polar covalent.
- When the elctronegativity difference between two atoms in bond is above 0.5 the bond is ionic.
Thus the O-H is a polar covalent bond. This explains the polarity in water molecules.
