if you were going to try to get the noble gas argon to combine with another element, would fluorine be a good choice?

Answer:

D) hydrochloric acid.

Explanation:

• The balanced equation for the mentioned reaction is:

<em>Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g),</em>

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It is clear that 1.0 moles of Zn react with 2.0 moles of HCl to produce 1.0 moles of ZnCl₂ and 1.0 mole of H₂.

• From stichiometry; Zn reacts with HCl with (1: 2) molar ratio.

<em>∴ 2.0 mol of Zn (the remaining 2.0 mol is in excess) react completely with 4.0 mol of HCl with (1: 2) molar ratio.</em>

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So,

the limiting reactant is HCl and the excess reactant is Zn.

<em>Thus, the right choice is: D) hydrochloric acid.</em>

Answer:

Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup." Rutherford's gold foil experiment showed that the atom is mostly empty space with a tiny, dense, positively-charged nucleus. Based on these results, Rutherford proposed the nuclear model of the atom.

Explanation:

The answer is two because the more heat there is, the more movement amongst particles there is.

Answer:

The most common drinking water contaminants are microorganisms, nitrate, and arsenic.

Explanation:

Structure 1 is satisfying octet rule because each atom surrounded by 8 electrons:
The valance electron for oxygen is 6, for sulfur is 6, but for hydrogen is 1. Therefore, the molecule has <span>valance electrons. Sulfur is bonded with 4 oxygen atoms,  4 single bonds, whereas 2 hydrogen atoms are bonded with 2 oxygen atoms. 

But the actual structure is 2 but it violates octet rule since S is surrounded in this case with 12 electrons
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