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labwork [276]
4 years ago
13

Match each of the unknown ions to its appropriate description.

Chemistry
1 answer:
Vera_Pavlovna [14]4 years ago
3 0

Answer:

Explanation:

A = A metal that lost three electrons is Z³⁺

Metals loses their electrons and form cations. So when an metal loses three electrons positive three charge is created.

B= A metal that lost one electrons is Y⁺

When metal loses one electron positive one charge is created.

C=A nonmetal that gained one electrons is X⁻

When non metals gain the electrons anions are formed and negative charge is created on atom due to addition of electron. So when non metal gained one electron -1 charge is created.

D= A nonmetal that gained three electrons is V³⁻.

when non metal gained three electrons -3 charge is created, because of addition of three electrons.

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sashaice [31]

Answer:

800.0 mL.

Explanation:

  • To solve this problem; we must mention the rule states the no. of millimoles of a substance before and after dilution is the same.

<em>(MV)before dilution of HCl = (MV)after dilution of HCl</em>

M before dilution = 12.0 M, V before dilution = 100.0 mL.

M after dilution = 1.5 M, V after dilution = ??? mL.

∵ (MV)before dilution of HCl = (MV)after dilution of HCl

∴ (12.0 M)(100.0 mL) = (1.5 M)(V after dilution of HCl)

<em>∴ V after dilution of HCl = (12.0 M)(100.0 mL)/(1`.5 M) = 800.0 mL.</em>

8 0
3 years ago
How do the equilibrium concentrations of the reactants compare to the equilibrium concentrations of the product?
Scorpion4ik [409]

Answer: It depends equilibrium constant K

Explanation:   You need to to have reaction formula.

If K >> 1 then concentrations of products are much bigger than

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6 0
3 years ago
Which notation represents atoms that have the same number of protons but a different neutron?
ArbitrLikvidat [17]
Those are called isotopes,

the answer is 3.

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5 0
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How many moles of Ar atoms are there in 202 L of Ar gas at STP? A) 1.20 x 1024 mol B) 1.11 x 10-1 mol C) 4.52 x 103 mol D) 9.02
Alina [70]

Answer:

4.52 x 103 mol

Explanation:

5 0
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Answer:  I would go with D.

Explanation: Sorry if it is incorrect

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2 years ago
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