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Alex787 [66]
3 years ago
7

How much water must be added to make a 1.0 M solution from 250. mL of a 2.75 M solution?

Chemistry
1 answer:
Stels [109]3 years ago
4 0
700 mL ....................
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D. Halogens

Explanation:

All elements in these groups have 7 valence electrons, meaning their electronegativity is the highest among the elements.

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3 years ago
Suppose that in the citric acid cycle, oxalacetate is labeled with 14C in the carboxyl carbon farthest from the keto group. Wher
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All of alpha-ketoglutarate formed in the citric acid cycle would contain the radioactive ^{14}C while none of succinate would contain ^{14}C, and all of carbon dioxide released would contain ^{14}C.

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When oxaloacetate in the citric acid cycle is labeled with ^{14}C in carboxyl carbon atom which is farthest from keto group, alpha ketoglutarate formed from this oxaloactetate has the full radioactive label. In the next step, the carboxylic group (that contains the ^{14}C) is eliminated in the form of the release of the carbon dioxide and succinate is formed. Succinate thus will not have radioactivity. CO_2 released had all the radioactivity.

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What type of light is emitted by electrons falling to the ground state?
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Solar energy is the right awnser

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4 years ago
Which one is smaller?<br><br>neutron<br><br>proton<br><br>electron <br><br>atom​
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3 years ago
When 0.1M HCl is added to the following system at equilibrium: AgCl(s) Ag+ (aq)+ Cl– (aq) the point of equilibrium will shift to
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Le Chatelier's Principle says that when something disrupts the equilibrium, the system adjusts to minimize the effect of that disturbance. If 0.1 M HCl solution is added, this dissociates into H+ and Cl- ions, so there will be more Cl- ions in the system. This causes the reaction to go in the reverse direction (equilibrium shifts to the left) to reduce the amount of Cl-.
Since this also consumes Ag+ ions, the concentration of Ag+ (aq) will decrease.
The answer is the second choice.

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3 years ago
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