All categories

4 years ago

Which element has the strongest intermolecular forces at room temperature? A) I (s) B) F (g) C) Br (l) D) Cl (l)

Chemistry

1 answer:

tatuchka [14]4 years ago

5 0

A) I or Iodine

Iodine is solid which will be in a more fixed position and held closer together making it harder to break apart. It has more electrons and therefore more van der waals forces acting on it, which require more energy to break apart.

You might be interested in

Help and explain step by step if you can!

Leona [35]

Answer:

the third one

Explanation:

if you look at it mathematically its the one that makes the most sense

4 0

4 years ago

What is the [H+] and [OH-] of a 3.5 M HCIO3 solution?

levacccp [35]

Answer: H+ ia helyuim

explinanation: Hope this helped!!

3 0

3 years ago

A molecule has two bonded atoms around the central atom. The central atom does not have any lone pairs. What is the geometry of

morpeh [17]

Answer:

I think Tetrahedral

Explanation: HaHa I D K

6 0

3 years ago

Methanol can be produced by the following reaction: CO(g) 2 H2(g) CH3OH(g). How is the rate of disappearance of hydrogen gas rel

belka [17]

Answer:

$r_{H_2}=-2r_{CH_3OH}$

Explanation:

Hello!

In this case, for the reaction:

$CO(g)+ 2 H_2(g) \rightarrow CH_3OH(g)$

In such a way, via the rate proportions, that is written considering the stoichiometric coefficients, we obtain:

$\frac{1}{-1} r_{CO}=\frac{1}{-2} r_{H_2}=\frac{1}{1} r_{CH_3OH}$

Whereas the reactants, CO and H2 have negative stoichiometric coefficients; therefore the rate of disappearance of hydrogen gas is related to the rate of appearance of methanol as shown below:

$\frac{1}{-2} r_{H_2}=\frac{1}{1} r_{CH_3OH}\\\\r_{H_2}=\frac{-2}{1} r_{CH_3OH}\\\\r_{H_2}=-2r_{CH_3OH}$

Which means that the rate of disappearance of hydrogen gas is negative and the rate of appearance of methanol is positive.

Regards!

7 0

3 years ago

A population of rabbits triples every 2 months If there are 2 rabbits initially, how long will it take for the population to inc

Bezzdna [24]

Answer:

The rabbit population will reach 500 after 10 months.

Explanation:

According to the given data:

The initial number of rabbit's equals 2.

Number of rabbit's after 2 months =2x3= 6

Number of rabbit's after 4 months = 6x3=18

Number of rabbit's after 6 months = 18x3=54

Number of rabbit's after 8 months = 54x3=162

Thus we can see that the number of rabbit's form a Geometric series with common ratio =3 and initial term = 2

Now the general term of a geometric series with first term 'a' and common ratio 'r' is given by

$T_{n+1}=ar^{n}$

Thus we need to find when the term becomes 500 thus using the given data we have

$500=2\cdot 3^{n}\\\\3^{n}=250\\\\(n)log_3(3)=log_3(250)\\\\(n)=5.025\\\\$

Thus the fifth term (excluding the start term) will have a rabbit count of 500 now since each term has a time difference of 2 months thus sixth term will occur after $5\times 2=10months$

7 0

3 years ago