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Which response includes all of the following substances that have AG"; = 0,and no other substances?HCI(g) 2 Fe(s) HCI(aa) Fzlg)3) 1 € 2b) 2 & 4c) 1,2...

Question

Which response includes all of the following substances that have AG"; = 0,and no other substances?HCI(g) 2 Fe(s) HCI(aa) Fzlg)3) 1 € 2b) 2 & 4c) 1,2 & 4d) 1,2,3 & 4

Which response includes all of the following substances that have AG"; = 0,and no other substances? HCI(g) 2 Fe(s) HCI(aa) Fzlg) 3) 1 € 2 b) 2 & 4 c) 1,2 & 4 d) 1,2,3 & 4



Answers

Which chemical formula does not represent a possible compound with sulfate, ${SO}_{4}^{2-} ?$
Explain your answer.
a. ${Na}_{2} {SO}_{4} $ b. ${KSO}_{4} $ c. ${Al}_{2}({SO}_{4})_{3} $ d. ${CaSO}_{4}$

Question Number seven is in reference to the formulas of ionic compounds containing sulfate. The key to making sure the chemical formulas for the ionic compounds are valid is making sure the charges of the cat ions and an ions some up to zero. Essentially, we have a compound with a neutral charge. Sulfate has a minus two charge. So if we look at the first formula, any two s 04 sodium going to the periodic table being an alkali metal has a plus one charge in group one A. We have two of them, so two times plus one minus the to charge of sulfate gives us zero. This one is plausible. Que eso four. We go to the periodic table. Potassium is also in alkali metal. It has a plus one charge. We minus the to charge from sulfate and we don't get zero. So this one is definitely not a plausible chemical formula for an ionic compound with sulfate. The next one is a L two s 043 Aluminum has a plus three charge, so two times three plus minus, the two times three gives us zero. So this one is plausible and the last one is copper to sulfates. Copper would have a plus to charge, assuming that it is copper to our Sorry, this is calcium and calcium is always two. Plus, it's an alkaline earth metals. So we've got calcium with a plus to charge sulfate with a minus to charge. This is also zero, so the only chemical formula that does not represent a possible compound is B.

In order for sulfate to combine with something to form a possible compound because it has a minus to charge, it needs to combine with something that results in a neutral compound with no charge. So we somehow need to neutralize the negative charge associated with sulfate. For the first compound we have sodium sulfate sulfate has a minus two charge. What is the charge on sodium? It's an alkali metal in group one. A. Thes metals always have a plus one charge when forming an ionic compound and because we have to, this is a neutral compound for the next one. We have potassium sulfate. Potassium is also a group one alkali metal, and it has the plus one charge. So when combined with the minus two, we do not get a neutral compound with no charge. So this compound is not possible. You would actually need to put it to right here. Toe. Have it be possible. The next one is aluminum sulfate. Sulfate has a minus two charge. There are three of them, so that's a minus six. Aluminum has a plus three charge. There are two of them. That's a plus six. This is a neutral compound. The last one is calcium sulfate. Sulfate has a minus two charge. Calcium has a plus to charge. So we do get a neutral compound. This one is possible. The only one that is not possible is B.

Hello student. So the question is saying which one of the following substance is used as fertilizer? So first is CSN do this is not a fertilizer. In next option we have calcium sulfate and next option we have calcium sulfate. It is also not any fertilizer. In the third option we have K. Two and so forth. Don't care too. And so forth. Or 14 sq. So this is what alan Here too. As a 4th note and two As of four tries don't well mole of water. It is potential. Um It is not a fertilizer in option D. We have in option tv health steel H. 2 3 or four. So I see a studio for voice that's cool dot twice off. See years of our dot H two. So this is this is triple super phosphate. Okay this is triple stupid for straight. This is triple super force. This and it is used as major career of it is music career off of course for us in soil. So this is a fertilizer and this is correct answer. So option D. Is correct. I hope you understand the solution. Thank you

Let's name the following ionic compounds for a Yes you know to to this copper, copper is multi valent in this compound that has a charge of plus two there for its copper to N. +02 minus is the nitrite. And I am. This is copper to nitrate for B. Yeah and A. In each four, three P and H four is the ammonium iron. This is ammonium PS leaf ossified and irons or ammonium phosphate Guide for be for C And a. two. So four and a sodium does not need a Roman numerals, sodium is not multi valent, so four is the sulfate and iron C. Is sodium sulfate And for D We have HGCL two. Mercury is multi violence and in this compound it has a charger plus two. So mercury too, CLS chloride and I and D. Is mercury to chloride.


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