D phenolphthalein is the answer
Answer:
Hydrogen bonds
Explanation:
Hydrogen bonds are bonds formed in polar molecules in which an hydrogen atom is directly joined to a highly electronegative atom such as oxygen or nitrogen or fluorine.
A hydrogen bond is just an electrostatic attraction between a hydrogen atom of one molecule and the electronegative atom of a neighboring molecule.
Methanol has a formula of CH₃OH and the hydrogen bond is between the H and O.
Hey there!
Here is your answer:
<u><em>The proper answer to this question is option D "sec-butyl bromide".</em></u>Reason:
<u><em>S</em></u><span><u><em>ec-butyl bromide looks often like this:</em></u>
<em>Therefore the answer is option D!</em>If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit</span>
Answer:
3.45 moles Li contains 2.08 × 10 (to the power of)24 atoms .
Explanation:
The relationship between atoms and moles is:
1 mole atoms =
6.022 × 10 (to the power of)23
atoms
In order to determine how many atoms occupy a given number of moles, multiply the given moles by
6.022 × 10 (to the power of)23
atoms/mole
.
In the case of 3.45 moles lithium (Li):
3.45 mol Li × 6.022 × 10 (to the power of)23 atoms Li/ 1 mol Li =
2.08 × 10 (to the power of)24
atoms Li rounded to three