They can try to increase the amount of plants put in the ground because the plants take in the carbon and give us more oxygen to breath healthy.
Answer:
just see if i am not wrong
learning balancing in chemistry it take time
hope i am correct
Answer:
Here's what I find.
Explanation:
a. Structure
Acebutolol is a secondary amine (basic). It forms a substituted ammonium salt when treated with hydrochloric acid.
The structure of the salt is shown below, with a red arrow pointing toward the positive charge on the N atom.
b. Solubility
The formula of acebutolol is C₁₈H₂₈N₂O₄.
The amide, acetyl, and ether groups confer little solubility to the molecule.
The alcohol and secondary amine do confer some solubility, because they can donate and accept hydrogen bonds.
However, they can each overcome the hydrophobic properties of only three to five carbons, and acebutolol has 18 of them.
The free amine would be preferentially soluble in lipid material (fats)
The protonated amine is ionic and therefore much more soluble in aqueous media (e.g., blood).
c. Marketing
The drug must be delivered to the tissues of the heart, where it blocks the effects of adrenalin. The best way to do this is through the blood, so acebutolol is marketed as the hydrochloride salt.
Answer:
- <u><em>Copper atoms vibrate around fixed positions, whereas mercury atoms move around while staying close together. </em></u>
Explanation:
The <em>solid </em>state of matter is characterized by rigid crystalline structures, in which <em>atoms </em>can vibrate around a fixed position. That is why <em>solids</em> have definite shape and volume, and cannot flow. This is described in the last statement when it states <em>"Copper atoms vibrate around fixed positions"</em>
The <em>liquid </em>state of matter is characterized by the <em>atoms </em>being more separated than in<em> solids.</em> While the <em>atoms </em>in the liquid are not completely free to move, they can slide past the neighboring atoms, which gives them the property to flow. Therefore, the liquids, although they have a defined volume, take the form of the container. This is what the last statement describes as "mercury atoms move while remaining together"
Answer is: <span>because dissolved compounds can crystallizing from solution during filtration and forming crystals on the filter paper or funnel.
</span>Recrystallization<span> is a technique used to purify chemicals by dissolving both impurities and a compound in an appropriate solvent, either compound or impurities can be removed from the solution, leaving the other behind.</span>