The land is warm during the day. For example, if you near a sea early in the morning, you could see how cold, cool the place is.
The nucleus of an atom located at the center of the atom contains nearly all of the atoms mass. This has a positive charge because of the protons inside it. There are also neutrons with zero charge. Electrons are orbiting outside the atom. The answer to this problem is d. <span>contains nearly all of the atoms volume.</span>
The Chemica formula of the product is Na2S which is called sodium sulfide. remember that sodium is a metal and all compounds containing a metal are named with the stock system.
POH value was calculated by the negative logarithm of hydroxide ion concentration.
To know the hydrogen ion concentration, we need to know the pH value, that can be found out if pOH is known
pH + pOH = 14
pH = 14 - pOH
pH = 10.65
once the pH is known we have to find the antilog.
[H⁺] = antilog (-pH)
antilog can be found by
[H⁺] = 10^(-10.65)
[H⁺] = 2.2 x 10⁻¹¹ M
