The element among the list that is not a metal there is the element fluorine.
A nonmetal is an element that occur towards the right hand side of the periodic table and does not have the general properties that are attributed to metals such as the ability to react with acids.
The element among the list that is not a metal there is the element fluorine.
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Answer:
CH₃CH₂CH₂OH → CH₃CH=CH₂ + H₂O
Explanation:
La ecuación que representa la reacción del alcohol 1-butílico (también llamado como 1-butanol o n-butanol) con H₂SO₄ como catalizador a altas temperaturas es:
CH₃CH₂CH₂OH → CH₃CH=CH₂ + H₂O
Los productos son agua y buteno.
B) acetyl CoA + choline
C) methylcholine + acetate
D) choline only
E) acetate only
Once released, acetylcholine is degraded by extracellular enzymes into acetate + choline. Option A is the correct answer.
Acetylcholine (ACh) is a neurotransmitter responsible for transmitting signals across synapses in the nervous system. Once it is released into the synaptic cleft, acetylcholine is rapidly broken down by the enzyme acetylcholinesterase (AChE). The enzymatic degradation of acetylcholine by AChE results in the hydrolysis of the acetyl group, leading to the formation of acetate and choline.
Acetate is a small molecule that is easily cleared from the synaptic cleft, while choline can be taken up by the presynaptic neuron to be reused for the synthesis of new acetylcholine molecules. This degradation process is essential for terminating the signal transmission and preventing continuous stimulation of the postsynapticneuron.
Option A is the correct answer.
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Answer:
The Nitric Acid Test
Explanation:
The Nitric Acid Test is used to check if silver is pure or plated. To do so, file a small part of the item in a discreet area where it cannot be seen. Apply a few drops of nitric acid. If the area turns into creamy white, the silver is pure or sterling. If green, it is probably fake or silver-plated.
(2) 2-7-8 (4) 2-8-8
The electron configuration that represents the atoms of chlorine in an excited state is 2-7-8. This is because in the excited state, an electron has moved from the second energy level to the third
The electron configuration represents the distribution of electrons in an atom's energy levels. The standard electron configuration for a ground state (normal state) chlorine atom is 2-8-7. However, when an atom is in an excited state, one or more electrons have moved to a higher energy level. In the case of chlorine, an electron from the second energy level could be excited to the third energy level. So, the electron configuration representing an atom of chlorine in an excited state would be option (2) 2-7-8.
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Answer: Tb = i * kb * m = 4 * 0.512 °C /m * 2.59 m = 5.3°C => Tb = normal boiling point + 5.3°C = 100°C + 5.3°C = 105.3°C.