Answer:
https://www.khanacademy.org/science/chemistry/oxidation-reduction/batter-galvanic-voltaic-cell/v/redox-reaction-from-dissolving-zinc-in-copper-sulfate
Explanation:
watch the vid
In the endpoint when the indicator changes color it gives the information that the acid is neutralized by the base.
<h3>What is Titration ? </h3>
Titration is also known as titrimetry is a technique where a solution of known concentration is used to calculate the concentration of the unknown solution. Titration is a laboratory technique.
<h3 /><h3>What is Endpoint ? </h3>
The point at which the indicator changes the color is known as Endpoint.
Thus from the above conclusion we can say that In the endpoint when the indicator changes color it gives the information that the acid is neutralized by the base.
Learn more about the Titration here: brainly.com/question/186765
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Answer:
An anionic single replacement reaction.
Explanation:
Hope this helps!!!
To high or normal. I did not learn that in middle school so I do not know today but someone will
Explanation:
The given data is as follows.
Heat capacity = 41.70 kJ/K,
Temperature change = 
Hence, calculate the quantity of heat as follows.
Quantity of heat = heat capacity × temp. change
= 41.70 kJ/K × 2.92 K
= 121.764 kJ
This heat energy is related to burning of 3.80 g of given sample.
Therefore, calculate the heat per gram as follows.
Heat = 
= 32.04 kJ/g
As, 1 nutritional calorie = 1000 calorie
1 calorie = 4.2 J
Therefore, calculate the heat in terms of calorie as follows.
Heat = 
= 7.62 calorie
Thus, we can conclude that there are 7.62 calories per gram of the candy.
