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Answer: Option (1) is the correct answer.
Explanation:
Compounds in which atoms transfer electrons result in the formation of ionic bond. Whereas when atoms in a compound share electrons then they result in the formation of covalent compounds.
Also, it is known that like dissolves like. Hence, water being an ionic compound itself dissolves other ionic compounds.
Thus, out of the given options HCl is a covalent compound, therefore, HCl is the compound that becomes less soluble in water as the temperature of the solution is increased.
(B) Climate zones at high latitudes are cooler because they are closer to the equator.
(C) Climate zones at high latitudes receive a lot of precipitation because they are farther from the equator.
(D) Climate zones at low latitudes receive little precipitation because they are closer to the ocean.
(A) Climate zones at low latitudes are hotterbecause they receive more direct sunlight. This is because the Earth's surface at the equator is closer to the sun and therefore receives more direct sunlight
Additionally, the distance of a region from the equator affects its precipitation pattern, with regions closer to the equator generally receiving more precipitation than regions at higher latitudes.
As a result, the tropics, which lie near the equator, tend to be warmer than other regions. In contrast, regions at high latitudes receive less direct sunlight due to the curvature of the Earth's surface, resulting in colder temperatures.
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Answer: the first ionization energy decreases.
Justification:
1) The group 15 is formed by N, P, As, Sb, Bi, and Mc.
2) The first ionization energy is defined as the energy needed to remove an electron from the neutral atom in the gas state.
3) The elements of the group 15 have the following general electron configuration for the valence shell: ns² np³. Where n is the principal quantum number (the same number of the row in which the element is).
4) As you go down in the group, n increases, and the valence electrons are further away of the nucleous, meaning that those electrons are lessen attracted to the nucleous.
Consequently, as you go down in the group, the electrons will be removed more easily, i.e less energy will be required to get them removed.
5) That permits you to predict this order in the first ionization energies: N > P > As > Sb > Bi > Mc.
And that agrees with the data that you can find in a table of first ionization energies.
As atomic number increases, first ionization energy in Group 15 elements initially rises due to increasing nuclear charge, then decreases because of larger atomic radius, and finally increases again due to stronger attraction between cations and remaining electrons.
The first ionization energy refers to the energy necessary to remove an electron from a neutral atom. As we consider the first five elements in Group 15 in order of increasing atomic number, there's a trend that emerges regarding first ionization energy. Initially, the ionization energy increases. This is due to an increasing effective nuclear charge that tightens the hold on the electrons, making it more energy-consuming to remove them.
Then, there's a decrease in ionization energy. This is caused by the additional energy level of electrons, which increases atomic radius and reduces the impact of nuclear charge - it's easier to remove an electron from a larger, higher-energy orbital. Following this, the ionization energy starts increasing again. This is because unrelated to size, it becomes increasingly difficult to remove additional electrons which have a greater electrostatic attraction to the cation that's formed.
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b. diffusion
c. suspension
d. effusion
Answer:
B: diffusion
Explanation:
B) carbon dioxide (CO2), a common gas
C) water (H2O)
D) silicon carbide (SiC), a network solid
nuclear
hydrogen
covalent
The bonds found between water molecules are called:
Hydrogen bonds
which contribute to water having a high number of Van Der Waals forces.
Explanation:
A hydrogen bond is an electromagnetic attraction within polar molecules in which hydrogen is joined to a larger atom, such as oxygen or nitrogen. This is not a dividing of electrons, as in a covalent bond. Preferably, this is an attraction among the positive and negative poles of charged atoms.
Answer:
Hydrogen bonds
Explanation: