We know, that Convection<span> is the movement of groups of </span>molecules<span> within </span>fluids<span> such as </span>liquids<span> or </span>gases<span>, and within </span>rheids
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Examples of Global processes occurs by it:
1) Atmospheric Circulation. - It </span><span>is the large-scale movement of air, and is a means by which thermal energy is distributed on the surface of the Earth, together with the much slower (lagged) ocean circulation system.
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2) Oceanic Circulation . - <span>Solar radiation affects the oceans: warm water from the Equator tends to circulate toward the </span>poles<span>, while cold polar water heads towards the Equator.
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3) Weather. - Most important process if Weather including mineral cycle. Example in Hydrological cycle <span>a </span>foehn wind<span> is a down-slope wind which occurs on the downwind side of a mountain range. It results from the </span>adiabatic<span> warming of air which has dropped most of its moisture on windward slopes.
Hope this helps!</span>
I think the correct answer would be the third option. The reason I2 has a higher melting point than F2 is because I2 possesses a more polarizable electron cloud. I2 contains more electrons than F2 which would result to a stronger intermolecular forces. Having stronger intermoleculer forces would mean more energy is needed to break the bonds so a higher melting point would be observed.
The charge from a proton or electron are of equal strength, therefore if an atom has an equal number of protons and electrons, it will be electrically neutral. However, atoms are not always electrically neutral, in which case they are called ions. (scienceline.ucsb.edu/getkey.php?key=4554)
Hope this helps
The answer is [OH⁻] = 1 x 10⁻⁴.
[OH⁻] = H₂O ÷ [H₃O⁺]
[OH⁻] = 1 x 10⁻¹⁴ / 1 x 10⁻¹⁰
[OH⁻] = 10⁻⁴