B. They work against a strong gravitational force
The best and most correct answer among the choices provided by your question are the choices b, c, and d.
Faster movement of people, products, and ideas increased, CO2 emissions, increased pollution <span>resulted from advanced methods of transportation that rely on oil for fuel.</span>
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The ph of the buffer solution is 7.743.
What is the Henderson-Hasselbalch Equation?
The Henderson-Hasselbalch equation establishes a relationship between the pKa and pH of acids. When the concentration of the acid and its conjugate base and the associated conjugate acid, are known, the pH of a buffer solution can be determined with the use of this equation.
We use Henderson-hasselbalch equation,
pH = pKa + log [Base] / [Acid]
pKa = -log Ka = -log (3.0 x 10^-8) = 7.46
pH = 7.52 + log [0.250] / [0.150]
pH = 7.52+ 0.2227
pH = 7.743
Therefore, the ph of the solution is 7.743.
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Answer:
I would go with tododeku to leave room for kiribaku but that's my opinion
Just because I ship that doesn't mean i don't secretly ship bakudeku
Explanation:
Bakudeku is a hawt ship and I love it so friggen much, but kiribaku is kinda cute and it got me all mixed up. I'm in a mess as well trying to figure out a solid ship for each character. I'm procrastinating by drawing a bunch of random fanart.
Firstly let's briefly explain the difference between compounds and mixtures. Compounds are substances composed of many of the same molecule. Pure water, therefore, is an example of a compound as it is repeated molecules of H20. Mixtures are when two or more compounds are grouped together in a substance but retain their discrete molecular forms. For example, salty water is a mixture of pure water molecules and salt molecules. Mixtures can be separated without breaking molecular bonds, however compounds cannot.
If we take desalinization of sea water (salt water) for example. Sea water contains water molecules and salt molecules in a mixture. Pure water can be separated from the salt by passing the sea water through a very fine mesh at high pressure. The mesh acts like a sieve and does not let the salt molecules pass through, trapping them on one side and leaving pure water on the other side. This is called a reverse osmosis filter and is an example of separating two constituent molecules (compounds) from a mixture.
Separating water molecules themselves into their constituent atoms/molecules, however, does require bonds to be broken. In water the hydrogen and oxygen atoms are covalently bonded together. In order to separate them we must break these bonds and the application of energy through the process of electrolysis can achieve this. The result yields hydrogen gas at one electrode and oxygen gas at the other.
Notably, separating mixtures or compounds into their constituents requires energy in some form.