Which element of weather is caused by a difference in air pressure between two air masses?
2 answers:
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Answer:
3.6132 * 10^24 atoms/molecules of 02
Explanation:
When we look at the balanced chemical equation, we can see that there are 6 moles of O2.
In order to convert from moles to formula units (atoms and molecules),
you need to multiply by avogadro's number.
6 moles * /1 mol = 3.6132 * 10^24 atoms/molecules of 02
Answer:
Any binary molecular compound of hydrogen and a Group 6A element above Selenium will be less acidic, so water and dihydrogen sulfide are less acidic in aqueous solution than hydrogen selenide.
Explanation:
Going down in a group increases the atomic radius and a greater atomic radius implyes greater ionic radius.
When ionization takes place in these compounds they yelds protons (hidrogen ion) and an lewis base (anion). The greater the ionic radius the greater its stability, thus the periodic tendency is increaing the acidity of binary hidrogen compounds when going down a group. On the other hand going up a group decreases acidity, so any molecular compound of hydrogen and a Group 6A element above Selenium will be less acidic, so water and dihydrogen sulfide are less acidic in aqueous solution than hydrogen selenide.
