What is c2h5oh and the difference between it and c2h6o

Answers

Answer 1

Answer:
-Physical condition: C₂H₅OH is liquid; CH₃OCH₃ is a gas.
-Reactivity: C₂H₅ reacts with sodium (Na) metallic, releasing H₂ and forming the sodium ethoxide, Na (+) C₂H₅-O (-) (C₂H₅ONa).CH₃OCH₃ no reacts with sodium.-water solubility: C₂H₅OH dissolves in any proportionCH₃OCH₃ is poorly soluble in H₂O.
-polarity: C₂H₅OH is very polar, form hydrogen bonds.CH₃OCH₃ is little polar, doesn't have H available to form hydrogen bridge.
Write C₂H₆O may cause ambiguity because there are 2 different substances with this formula:-ethyl alcohol or ethanol = CH₃---CH₂---H
methyl ether = CH₃---O---CH₃

If you label a bottle only with C₂H₆O, will be very difficult to know if the compound is methyl ether or ethanol, which can be very dangerous in the laboratory. As only the ethanol C₂H₅OH is structured, it is convenient to use preferably this formula. For the methyl ether, it is more efficient to use the formula CH₃OCH₃.

hope this helps!

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1, This element has a complete outermost energy level and is found in the 5th period. 2. This element has 2 electrons it its outermost energy level and belongs to the 2nd period. 3. This element has 3 electrons in its Lewis dot structure and is in the 3p orbital section. 4. This element has 74 protons. 5.This element in the 4th period wants to gain one electron to make an ionic bond. 6. This element is the halogen in the 5th period. 7. This metalloid has 3 electrons in its 5p orbitals. 8. This element in the 5th period wants to lose two electrons to make an ionic bond. 9. This malleable metal has an atomic number of 47. 10.This element in the 2nd period will form an ionic compound with a 1:1 atom ratio with Magnesium. 11.This element has an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p4. 12. This element was named for the scientist who discovered the nucleus of the atom using gold foil. 13. This noble gas belongs to the 6th period. 14. This element has 1 electron in its 4d orbital section. 15. This 3rd period element will not form compounds because it fits the Octet Rule.
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A physical change is a change
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The half-life of radioactive substance is 2.5 minutes. what fraction of the origional radioactive remains after 10 mins

Answers

The answer is 1/16.

Half-life is the time required for the amount of a sample to half its value.
To calculate this, we will use the following formulas:
1. $(1/2)^(n) = x$ ,
where:
n - a number of half-lives
x - a remained fraction of a sample

2. $t_(1/2) = (t)/(n)$
where:
$t_(1/2)$ - half-life
t - total time elapsed
n - a number of half-lives

So, we know:
t = 10 min
$t_(1/2)$ = 2.5 min

We need:
n = ?
x = ?

We could first use the second equation to calculate n:
If:
$t_(1/2) = (t)/(n)$ ,
Then:
$n = (t)/( t_(1/2) )$
⇒ $n = (10 min)/(2.5 min)$
⇒ $n=4$

Now we can use the first equation to calculate the remained fraction of the sample.
$(1/2)^(n) = x$
⇒ $x=(1/2)^4$
⇒ $x= (1)/(16)$

A build up of electric charge on an object

Answers

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Static electricity just did the test

What is the nuclear symbol for the isotope of bromine?

Answers

The isotopes of bromine are Bromine-79 and Bromine-81. Bromine-79 has 35 protons and 44 neutrons while bromine-81 has 35 protons and 46 neutrons. They are represented as Br-79 and Br-81.

Which term identifies a type of nuclear reaction?A) transmutation
B) neutralization
C) deposition
D) reduction

Answers

A nuclear reaction is B) Neutralizer.

Based on intermolecular forces, which of these substances would have the highest boiling point?(1) He (3) CH4
(2) O2 (4) NH3

Answers

NH3 would have the highest boiling point because the molecules have all 3 types of bonds:
London dispersion, because all molecules do
Hydrogen Bond, because of the fact that hydrogen is present and so is Nitrogen, one of the elements that hydrogen will form a hydrogen bond with.
Dipole Bond: Because the NH3 has a lone pair

Answer: NH3

Hope this helped!!!

Based on intermolecular forces, NH3 would have the highest boiling point.

You find that the unknown powder contains the illegal drug cocaine. If someone where to ask you to determine the purity of the substance, what would they mean? Why is purity important in crime investigations?

Answers

The substance is not composed entirely of cocaine, it is mixed with other materials. The purity refers to what percentage of the powder is cocaine, and what percentage is other materials.
Purity can be important in crime investigations to find out the samples value, and to pair it with previously found samples of equal purity to deduce that they came from the same source.

Answer:

If some would ask me to determine the purity of an unknown powder that contains illegal drugs like cocaine, they would probably be wanting to remove other substances that are added like baking soda, and the reason this is so important is that sometimes the ingredients they get to mix with have an effect on the test and may miss lid the results.

Explanation:

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