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Vesna [10]
4 years ago
14

Which units of pressure are equivalent and require no conversion of the value?

Chemistry
2 answers:
netineya [11]4 years ago
4 0
C. [mmHg and torres] are the only two of the pairs listed that are equivalent: 1 atm = 760 tor
= 760 mmHg = 101.3 kPa
Nutka1998 [239]4 years ago
3 0

The correct answer is C mmHg and torr


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Is a horned lizard a producer
nata0808 [166]

Answer:

no

Explanation:

they are insectivores, as they have a diet of primarily insects. producers are organisms that make their own energy, like plants, but horned lizards get their energy from consuming other organisms, so they are not producers

7 0
3 years ago
The bonds S-S, O-H and Ca-Cl are, respectively, a) nonpolar covalent, polar covalent, ionic polar covalent, b)nonpolar covalent,
Brums [2.3K]

Answer:

nonpolar covalent, polar covalent, ionic

Explanation:

From the question ,

S - S Bond -

Both the atom are same , hence , making a non polar bond , because of no difference between the electronegativity of the atom ,

Hence , the S-S Bond is non polar covalent bond .

O-H bond -

The Oxygen atom is more electronegative than the hydrogen atom , so the bond is polar in nature .

And as the bond is formed by sharing ,

Therefore ,

O-H bond is polar covalent bond .

Ca-Cl bond -

Calcium is a metal , whereas , Chlorine is a non - metal , the bond is ionic in nature ,

Hence , Ca-Cl bond is  ionic  in nature .

7 0
3 years ago
Which ligand binds the tightest? Ligand A, with a Kd of 10^-9M Ligand B, with a Kd of 10^-3M Ligand C, with a percent occupancy
padilas [110]
To answer this item, we must take note that the ligand that binds the tightest is the one with the lowest dissociation constant, Kd. Kd's for both A and B are already given so, we only need to solve Kds for C and D. 
  Kd of C
                        0.3 = (1x10⁻⁶)/(1x10⁻⁶ + Kd)   ; Kd = 2.3x10⁻⁶
 Kd of D  
                        0.8 = (1x10⁻⁹)/(1x10⁻⁹ + Kd)   ; Kd = 2.5x10⁻10
Since Ligand D has the least value of dissociation constant then, it can be concluded that it binds the tightest. 
6 0
3 years ago
Phenol and benzoic acid are both weak acids that are solublein
stealth61 [152]

Answer:

Se explanation below

Explanation:

Here we will use the technique of extraction taking advantange of the different solubilities of Phenol and and Benzoic Acid in the NaOH and and NaHCO₃ solvents (In reality their anions). Notice that phenol does not dissolve in the weak base NaHCO₃ so we can have the solution of phenol and benzoic acid in ether and proceed to extract with this weak base, the phenol will remain in solution in the organic ether solution and the sodium benzoate will go into the water layer.

We then will repeat the extraction procedure to separate the phenol from the organic layer by using NaOH instead.

Benzoic Acid /

Phenol/  Ether        ⇒Extract w/     ⇒    Organic Layer = Phenol/Ether      

                                10 % NaHCO₃         Aqueous Layer = Sodium Benzoate                  

                                                             

Sodium benzoate ⇒ 10 % HCl to precipitate Benzoic Acid

Filter Precipitate  benzoic Acid ⇒ Recrystallize benzoic Acid

Phenol  / Ether                Extract w/              Organic Layer =  Eher

                                        10 % NaOH            Aqueous Layer =

                                                                       Sodium Phenolate  

 

Sodium Phenolate  ⇒ 10% HCl to precipitate Phenol                                         Filter Precipitate Phenol ⇒ Recrystallize Phenol

7 0
3 years ago
Which of the following is a strong acid?<br> O HF<br> ОКОН<br> O HCIO4<br> O HCIO<br> O HBrO
mezya [45]

O HCIO4

Have a good day and take care.
8 0
3 years ago
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