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3 years ago

Describe in detail what happens when the following are dissolved in water polar solute ch3oh vs nonpolar solute ch3(ch2)4ch3

1 answer:

7 0

The simple trick is "Like dissolves Like".

Water is a polar molecule. So it will dissolve polar compounds.

1. CH3OH is polar. So, it will dissolve. Non polar solute CH3(CH2)4CH3 will not.

2. CO2 is non polar. So it will not dissolve.
And KF is an inorganic compound. So it will be soluble in water.

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The difference in elevation between the highest and lowest contour lines on a topographical map is called:

Elena L [17]

I think the answer is D

7 0

3 years ago

Which objects in space formed from the huge disk of ice and debris beyond the outer planets? Check all that apply. Pluto comets

Anni [7]

Answer: -

A solar nebula is a rotating cloud of gas and dust from which the sun and the planets formed.

A planetesimal is a small body from which planet originated in the early stages of development of the solar system.

Kupier belt is region of the solar system that is just beyond the orbit of Neptune and that contains bodies made mostly of ice. This is the region of the solar system that contains small bodies that are made mostly of ice.

Thus Pluto is formed from the huge disk of ice and debris beyond the outer planets. Comets originating from the Kupier belt are also composed of ice and debris.

7 0

3 years ago

Arrange the elements in decreasing order of first ionization energy.

just olya [345]

Answer:

The decreasing order of first ionization energy: Se > Ge > In > Cs

The decreasing order of first ionization energy: x > y > z

Explanation:

Ionization energy refers to the energy needed to completely pull out an electron from the valence shell of a neutral gaseous atom.

First ionization energy is the energy involved in the removal of first valence electron.

In the periodic table, down the group, as atomic radius of elements increases, the ionization energy decreases

Whereas, across a period, as atomic radius of elements decreases, the ionization energy increases.

PART (A):

Position of the given elements in the periodic table:

Indium (In): Group 13, period 5

Germanium (Ge): Group 14, period 4

Selenium (Se): Group 16, period 4

Caesium (Cs): Group 1, period 6

Thus, the increasing order of atomic radius: Se < Ge < In < Cs

Therefore, the decreasing order of first ionization energy: Se > Ge > In > Cs

PART (B):

Given elements:

element x: radius = 110 pm

element y: radius = 199 pm

element z: radius = 257 pm

Thus, the increasing order of atomic radius: x < y < z

Therefore, the decreasing order of first ionization energy: x > y > z

5 0

3 years ago

Consider two separate aqueous solutions: one of a weak acid HA and one of HCl. Assuming you started with 10 molecules of HA in o

Vadim26 [7]

Answer:

The answer is given below:

Explanation:

Strong acids have the ability to dissociate quickly as compared to the weak acids which dissociates slowly and can do that up to a certain level.

HCl is a strong acid and HA as stated in the statement is a weak acid.

So, in the beaker which contains HCl will have:

H+
Cl-
HCl
Water or H2O

In the beaker with HA will have:

H+
A-
HA
Water or H2O

8 0

2 years ago

How do the hazards from a quiet eruption differ from those of an explosive eruption?

vova2212 [387]

Hazards from huge explosive eruptions comprise extensive ash-falls with small glass particles in it, pyroclastic flows (combinations of hot gases and pumice chunks), and immense lahars which are volcanic mud flows which can even include debris. These put people within the area in danger. Nearby properties get damaged as well within a circumference of tens to hundreds of miles away from the volcano. These eruptions can extensively cause a change to the global climate too. Hazards from quiet eruptions include lava flows which contain exploding fires and creating gas clouds which are rich in chlorine where lava pours into the sea. This can cause damage to wildlife and sea creatures.

4 0

3 years ago