CHEMISTRY HIGH SCHOOL

Please help !!!Which of the following alcohols is now commonly being used as fuel additive?

methyl alcohol
ethyl alcohol
isopropyl alcohol
none of the above

Answers

Answer 1
Answer: Out of the following alcohols we can conclude the correct answer choice by going through our options, looking at their chemical formulas/structures and defining their usage.

 Ethyl alcohol (CH3CH2OH) :  Most commonly found in alcoholic beverages.

Isopropyl alcohol (C3H8O) : Is what is known as rubbing alcohol, most commonly used as a cleansing liquid.
 
Methyl alcohol (CH3OH) :  Is most  commonly used  as formaldehyde, jet fuel, and antifreeze.

So looking at our options we can conclude that the correct answer choice would be Methyl Alcohol because it is used as an additive in jet fuel.

Hope this helps! If you have any other questions or would like further explanation just let me know!  :)
Answer 2
Answer: Actually the correct answer is B. Ethyl Alcohol.

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In Nuclei, There are 2 forces. 1 force is electrostatic and acts as repulsion between 2 protons. The other is force of attraction called Nuclear force between 2 neutrons. This nuclear force is a short range force and is so strong that it negates the effect of the force of repulsion between the protons and helps bind the nucleus together. Hope this helped :D

What is the major difference between a solution and an ordinary mixture?

Answers

An ordinary mixture can be separated without using chemicals, a solution cannot.
The major difference between a solution and an ordinary mixture is that solution is homogeneous and an ordinary mixture is heterogeneous.

In the pie chart below, which of the following represents the amount of Earth's water located in the oceans?A pie chart with part A representing 2%, part B representing .8%, part C representing .2% and part D representing 97%.


A only
A and B
C only
D only

Answers

D Only . 97% is ocean

Answer:

D Only . 97% is ocean

Explanation:

Which of the following is equivalent to 3.2 mg?a
3.2 x 10-15 ug
b 3.2 x 1015 ug
С
3.2 x 10-3 ug
d
3.2 x 10'ug

Answers

Answer:

The options are not really clear, however, the answer is 3.2 × 10^3ug

Explanation:

Milligram (mg) and microgram (ug) are interconvertible measurements of mass or weight. One microgram (ug) is a millionth gram while one milligram (mg) is a thousandth gram.

Hence, one milligram is a thousandth microgram i.e. 1 mg = 1000 ug

Therefore, a measurement of 3.2mg in ug will be; 3.2 × 1000

= 3200

= 3.2 × 10^3 ug

Hence, an equivalent measurement of 3.2mg is 3.2 × 10^3ug.

The equivalent of 3.2 mg is 3.2 x 10^-3 ug. Therefore, the correct answer is option c.

3.2 mg stands for 3.2 milligrams.

The prefix "milli-" means one-thousandth (1/1000), so 1 milligram (mg) is equal to 0.001 grams (g).

To convert milligrams (mg) to micrograms (ug), we use the following conversion factor:

1 mg = 1000 ug

So, for 3.2 mg:

3.2 mg * 1000 ug/mg = 3200 ug

Now, to express this in scientific notation, we can write it as:

3200 ug = 3.2 x 10^3 ug

So, the correct equivalent of 3.2 mg is indeed:

c) 3.2 x 10^-3 ug

therefore, The correct answer is option c.

Learn more about Unit Conversion here:

brainly.com/question/32030244

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A typical neon light contains neon gas mixed with argon gas.  If the total pressure of the mixture is 1.63 atm and the partial pressure of the neon is 0.71
atm.  What is the partial pressure (atm) of argon?

Answers

the partial pressure of argon is:

1.63-0.71=  0.92 atm
1.63 atm - 0.71 atm = 0.92 atm

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***a dense substance that is hard and incompressible ***
a high-energy state of matter made up of a swirling, ionized gas
a loose association of particles moving past one another

Answers

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