All categories

3 years ago

Which answer provides the correct name for the following hydrocarbon?

Chemistry

2 answers:

motikmotik3 years ago

7 0

Answer: Option (b) is the correct answer.

Explanation:

In the given molecule, there are five carbon atoms attached linearly to each other will single bonds only.

So, it is known that when a compound contains only carbon and hydrogen atoms attached single bondedly to each other then this type of hydrocarbon is known as alkane.

Their general formula is $C_{n}H_{2n+2}$ , where n is the number of carbon atoms present. Suffine "ane" is added to the name of alkane.

Thus, we can conclude that name of the given hydrocarbon is pentane.

ivanzaharov [21]3 years ago

4 0

1) Hydrocarbon: CH3 - CH2 - CH2 - CH2 - CH3

2) Only single bonds => alkane => sufix ane

3) no substitutions

4) 5 carbons = > prefix penta.

Therefore, the name is pentane.

You might be interested in

The box shows the element nitrogen as it appears in the periodic table.

Helen [10]

Answer:

I am 90% sure it is A - if I am wrong please let me know so I can fix my mistakes and improve

Explanation:

6 0

3 years ago

An atom of sodium -23 has a net charge of +1 identify the number of protons, neutrons, and electrons in the atom. Then explain h

nikitadnepr [17]

Number of protons is 11

Number of neutrons is 12

Number of electrons is 10

For a neutral Na, Sodium atom:

The mass number P+N = 23

Atomic number (E or P) = 11

A charged Na atom that has lost an electron is positively charged and so: Number of Protons = 11 (Still the same)

Number of neutrons = 12

Number of electrons = 11-1=10 (the atom has lost an electron)

If an atom loses electron, it becomes positively charged ie. P>E

Learn more about Electrons, Protons, Neutrons here:

brainly.com/question/13131235

#SPJ9

6 0

1 year ago

How many numbers between 1-100 are equal to five times an odd number?

VashaNatasha [74]

Answer:

There are 10 numbers between 1-100 which are equal to 5 times an odd number.

Explanation:

The odd numbers between 1 and 100 are 1,3,5,7….. 

When these when these odd numbers are multiplied by 5 we get the following result.

$5 \times 1=5$

$5 \times 3=15$

$5 \times 19=95$

These products form an AP 5,15,25,…..,95 

common difference d=10

first term $a=5$

last term $a_n=95$

we have to calculate the number of terms n

The expression for last term $a_n$ of an AP is

 $a_n=a+(n-1)d$ 

 $a_n=a+nd-d$ 

 $nd=a_n-a+d =95-5+10=100$ 

 $n= \frac{100}{d}= \frac{100}{10}=10$ 

4 0

3 years ago

Which of the following conditions will result in a reaction that is spontaneous only at high temperatures?

Korolek [52]

You have to use the equation ΔG=ΔH-TΔS.
With that equation you know that a reaction with a positive change in enthalpy and positive change in entropy will only be spontaneous at high temperatures since ΔG needs to be negative for a reaction to be spontaneous.

I hopet this helps. Let me know if anything is unclear.

6 0

3 years ago

A compound that is composed of only carbon and hydrogen contains 80.0% c and 20.0% h by mass. What is the empirical formula of t

gladu [14]

Solution : Emperical Formula = $CH_{3}$

Emperical Formula - A formula that gives the simplest whole number ratio of atom in a compound.

In the question percentages are given then assume that the total mass is 100grams so that the mass of each element is equal to the percentage given.

Given : 80.0g Carbon

20.0g Hydrogen

First convert the given masses into moles.

$80.0g\text{ C} \times \frac{1 g/mole \text{ C}}{12.0 g/mole \text{ C}}= 6.66\text{mole of C}$

$20.0g\text{ H} \times \frac{1 g/mole \text{ H}}{1 g/mole \text{ H}}= 20.0\text{mole of H}$

Value of each mole divided by the smallest number of moles and then round off.

Moles ratio of the element are

$\frac{6.66}{6.66}\text{mole of C}= 1$

$\frac{20.0}{6.66}\text{mole of C}= 3$

This is the mole ratio of the elements and is repersented by the subscript in the emperical formula.

Emperical Formula = $CH_{3}$

3 0

3 years ago