I think it’s 2 hope that helped
Oxygen and carbon are element combinations that will most likely form polyatomic ions.
Answer:
CHAPTER 2 ATOMS, MOLECULES, AND IONS Questions 16. ... A molecule has no overall charge (an equal number of electrons and protons are present). Ions ... The first sample of chloroform has a total mass of 12.0 g C + 106.4 g Cl + 1.01 g H ... SrF2 f. Al2Se3 g. K3N h. Mg3P2 72. a. mercury(I) oxide b. iron(III) bromide c.
Explanation:
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Not my best subject, but I believe that the heat of the sun evaporates the water from other rain storms that had happened before. Once the water evaporates it gets formed into clouds (rain clouds) and after a while it get heavy or a bit cold so the cloud releases the water it held and the water being dropped is rain. I'm sorry if this is wrong this is all I can remember, but I believe it should be enough for elementary school.