Answer:
The main difference between the two is euchromatin is genetically active while heterochromatin is genetically inactive
Answer : 13.64 mL
Explanation : The reaction requires 13.64 mL of NaOH
From the reaction we know that oxalic acid requires two moles of NaOH so we have to calculate the number of moles of both.
0.150 L X 0.1500 moles/L = 2.25 X ![10^{-3}](https://tex.z-dn.net/?f=%2010%5E%7B-3%7D%20)
So the moles of NaOH will be 2 X (2.25 X
) = 4.5 X ![10^{-3}](https://tex.z-dn.net/?f=%2010%5E%7B-3%7D%20)
Now, we know the concentration of NaOH as 0.330 M
4.5 X
moles / 0.330 moles/L = 0.01364 L or 13.64 mL
So, the volume of NaOH needed to neutralize oxalic acid will be 13.64 mL
The cooling of water vapor has neither the highest nor lowest energy change
Explanation:
In cooling a sample of water vapor at 105°C to 95°C, it is a known fact that this process does not have the highest nor lowest energy change.
- The heat of vaporization from liquid to gas is far higher than the heat of fusion.
- Gases require more separation between their molecules to form their state of matter. This will demand more thermal energy than usual.
All other statements are false and are not correct.
Learn more:
vaporization: brainly.com/question/7580155
phase changes: brainly.com/question/1875234
#learnwithBrainly
Answer:
Plants and animals can be damaged by acid rain.
Explanation:
Acid burns and is harmful to things not accustomed to contact with acid.
Answer:
a partial negative charge
Explanation:
The oxygen on water molecules carries a partial negative charge on it. Water is made up of oxygen and hydrogen bonded via polar covalent bonds.
This bond involves the attraction between two atoms that shares their valence electrons in covalent bonding. The oxygen atom is more electronegative with more affinity for the shared electron. This suggests that it will pull the shared electrons more closer than the hydrogen atom.
This pull due to electronegativity difference leaves a partial negative charge on oxygen and a partial positive charge on hydrogen.