Answer and explanation:
Elements of the same group have the same number of valence electrons, therefore they behave similarly. For example in group 2, alkaline earth metals, all the elements have two valence electrons.
3) 60
4) 0.5 ("L" represent the avogadro's constant)
Answer:
44.01 g/mol
Explanation:
Add each elements atomic mass. For oxygen you will do that twice because their is two oxygens.
- Hope that helps! Please let me know if you need further explanation.
B. It has the highest pH so it is the most basic, thus containing the highest concentration of hydroxide ions.
Answer:
Half of Earth’s oceans are not owned by any particular country.
Explanation:
Reducing oil pollution requires an international effort because ocean waters do not have boundaries and there are certain portion of the ocean that are not owned by any nation.
- Oil pollution is a serious environmental issue.
- Oil spills can be carried by ocean currents from one place to another.
- They affect the aquatic ecosystem within a locality thereby reducing the biodiversity of life.
International collaborations are sought to combat any issue of oil spillage due to global undertone to it.