An electrochemical process involves any process that has to do with the transfer of elecrons.
<h3>What is an elecrochemical process?</h3>
An electrochemical process involves any process that has to do with the transfer of elecrons. These process include redo reactionand electron transport chains.
It is a true statement that the actiivity series helps to detect the products in a reaction because a metal that is lower in the series is always displaced by a metal that is higher in the series.
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Answer:
In comparison to Part 1 of this experiment, we observed similar reactions when determining the make up of our unknown. When testing for Mn2+ we observed a color change that resulted in a darker brown/red color, when testing for Co2+ we observed the formation of foamy bubbles but we could not conclude that a gas had formed, when testing for Fe3+ the result was a liquid red in color, when testing for Cr3+ we observed no change, when testing for Zn2+ we observed the formation of a pink/red liquid, when testing for K+ we observed the formation of a precipitate, when testing for Ca2+ we observe the formation of a precipitate. Sources of error may have occurred when observing whether or not an actual reaction had taken place or not, using glassware that wasn't fully cleaned, or the accidental mix of various other liquids in the lab
Explanation:
Answer:
The mass percent of Al(OH)₃ is 15.3%
Explanation:
The reaction is:
Al(OH)₃ + 3HCl = AlCl₃ + 3H₂O
The excess acid is neutralized with a solution of sodium hidroxide, in the reaction:
NaOH + HCl = NaCl + H₂O
The total moles of HCl is:

From the second titration, the moles of excess of HCl is:

The difference between the total and excess of HCl, it can be know the moles that reacts with the aluminum hydroxide, is:

The ratio between HCl and Al(OH)₃ is 3:1. The MW for aluminum hydroxide is 78 g/mol, thus:

The percentage of Al(OH)₃ is:
%
264.7miles per gallon
Explanation:
Given parameters:
Distance traveled = 264km
volume of gasoline = 23.3L
Unknown:
Gas mileage = ?
Solution:
We are to solve for the Gas mileage in miles per gallon. This will show how much gas was used per miles covered.
Convert km to miles
liters to gallon
1mile = 1.609km
1liter = 0.264gallon
In miles;
= 164.1miles
23.3L = 23.3 x 0.264 = 0.62gallon
miles per gallon =
= 264.7miles per gallon
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Answer:
photosynthesis
Explanation:
that's the way plants feed themselves