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Karolina [17]
3 years ago
14

All of the following are considered anxiety disorders EXCEPT

Chemistry
1 answer:
kenny6666 [7]3 years ago
5 0

obsessive compulsive disorder because OCD is a neurobiological disorder — not a condition that is caused by action or inaction.

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Given the chemical reaction: Hg2+(aq) + Cu(s) + Hg(s) + Cu2+(aq)
Pavel [41]

Answer: When the reaction reaches equilibrium, the cell potential will be 0.00 V

Explanation:

Equilibrium state is the state when reactants and products are present but the concentrations does not change with time.

The equilibrium is dynamic in nature and the reactions are continuous in nature. Rate of forward reaction is equal to the rate of backward reaction.

The standard emf of a cell is related to Gibbs free energy by following relation:

\Delta G=-nFE^0

The Gibbs free energy is related to equilibrium constant by following relation:

\Delta G=-2.303RTlog K

For equilibrium \Delta G=0

Thus 0=-nFE^0

E^0=0

Thus When the reaction reaches equilibrium, the cell potential will be 0.00 V

5 0
3 years ago
The chemical properties of an atom are related to the number of its what
RideAnS [48]
The properties of the electrons of an atom are determined in large part by the number of protons presented in the nucleus of the atom
7 0
3 years ago
Read 2 more answers
What is the proper value for C in the above table.<br> A. 28<br> B. 30<br> C. 32<br> D. 65
Alex Ar [27]

Answer:

28

Explanation:

electron = atomic number - charge(if the charge is positive and addition if the charge is negative)

electron = 30 - 2

electron = 28

8 0
2 years ago
1. For every 5.00 mL of milk of magnesia there are 400. mg of magnesium hydroxide. How many mL of milk of magnesia do we need to
forsale [732]

Answer:

1. 6.50mL

2. pH = 13.097

Explanation:

1. The neutralization of HCl with Al(OH)₃ is:

3HCl + Al(OH)₃ → Al(Cl)₃ + 3H₂O

40.0mL ≡ 0.0400L of 0.500M HCl are:

0.0400L × (0.500mol / L) = <em><u>0.0200 moles of HCl</u></em>

Based on the neutralization, 3 moles of HCl react with 1 mole of Al(OH)₃, thus, the moles of Al(OH)₃ that react with 0.0200 mol of HCl are:

0.0200mol HCl × (1mol Al(OH)₃ / 3mol HCl) = <em><u>0.00667 moles of Al(OH)₃</u></em>. In grams:

0.00667 moles Al(OH)₃ × (78g / 1mol) = 0.520g of Al(OH)₃ ≡ 520mg

As 5.00mL of milk magnesia contain 400mg of Al(OH)₃, the mL of milk magnesia required for a complete reaction are:

520 mg Al(OH)₃ × (5.00mL / 400mg) =<em> 6.50mL</em>

<em />

2. The reaction of lithium hydroxide (LiOH) with perchloric acid (HClO₄) is:

HClO₄ + LiOH → LiClO₄ + H₂O

<em>The reaction is 1:1.</em>

Moles of LiOH and HClO₄ are:

LiOH: 0.0500L × (0.350mol / L) = <em>0.0175 moles of LiOH</em>

HClO₄: 0.0300L × (0.250mol / L) = <em>0.0075 moles of HClO₄</em>

Assuming the reaction goes to completion, moles of LiOH that remains are:

0.0175 mol - 0.0075 mol = 0.0100 moles of LiOH. The total volume is 80.0mL, 0.0800L. Thus, molarity of LiOH is:

0.0100 mol / 0.0800L = <em>0.125 M of LiOH</em>

It is possible to obtain the pOH of the solution thus:

pOH = -log (OH) = -log 0.125M = 0.903

As pH = 14- pOH,

pH = 14 - 0.903 = <em>13.097</em>

I hope it helps!

3 0
2 years ago
Why is activation energy required to start some reactions?
topjm [15]
I would choose C because its the most accurate for this question.
5 0
2 years ago
Read 2 more answers
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