Which halogen is most likely to react?a. Br (bromine)
b. F (fluorine)
c. I (iodine)
d. Cl (chlorine)
Answers
Answer:
B
MAY I PLZ HAVE BRAINIEST
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B. At the end point, the pH of the solution is 10 and the color of the solution is pink.
C. Before any base is added to the solution, the pH of the solution is 10.
D. The pH of the solution changes very slowly at the equivalence point.
E. At the beginning of the titration process, the pH of the solution increases rapidly.
F. The chemical reaction involved in an acid-base titration is a neutralization reaction.
Answers
Answer
The chemical reaction involved in an acid-base titration is a neutralization reaction.
Explanation:
Final answer:
In this acid-base titration, only statements A and F are correct. At the equivalence point, the pH is 7, and the chemical reaction is a neutralization reaction. Other statements are false for different reasons.
Explanation:
In an acid-base titration process, the goal is to determine the concentration of an unknown acid or base by neutralizing it with an acid or base of a known concentration. This involved process is a neutralization reaction. Here are a few details:
- A: The pH of the solution at the equivalence point is 7. This is correct. When a strong acid like hydrochloric acid is titrated with a strong base like sodium hydroxide, the equivalence point occurs at a pH of 7.
- B: At the end point, the pH of the solution is 10 and the color of the solution is pink. This is incorrect. The end point will be when the solution is neutral (pH 7) assuming an appropriate indicator is used. The pink color indicates the presence of the base in excess.
- C: Before any base is added to the solution, the pH of the solution is 10. This is incorrect. Before the base is added, the solution is acidic and has a pH less than 7.
- D: The pH of the solution changes very slowly at the equivalence point. This is incorrect. The pH changes rapidly around the equivalence point due to the equal amounts of acid and base neutralizing each other.
- E: At the beginning of the titration process, the pH of the solution increases rapidly. This is incorrect. At the beginning, the pH changes slowly until near the equivalence point where it changes rapidly.
- F: The chemical reaction involved in an acid-base titration is a neutralization reaction. This is correct. The reaction between an acid and a base in a titration process is indeed a neutralization reaction which results in a salt and water.
Learn more about Acid-Base Titration here:
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A Heat transferred from the chocolate bar to his pocket.
B. Heat evaporated from his pocket to his chocolate bar.
c. Heat condensed from his leg to his chocolate bar in his pocket.
D. Heat transferred from the environment to the chocolate bar in his pocket.
Answers
Answer:
d
Explanation:
because it was in a hot environment your pocket
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Answers
Answer:
undergo death as result of the water loss from cell
Explanation:
The ingredients such as honey, jellies, Jams, preserves and other food which have high sugar content are contaminated hardly by the bacteria because due to the presence of high amount of the sugar and carbohydrates, the solution of the them becomes hypertonic in nature and if a bacteria acts on such solution, the result is the loss of the water from their cell and ultimately the bacteria dies. So, they remain fresh even if their containers are left open at the room temperature.
Electrons only
Protons and neutrons
Protons and electrons
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P is pressure (in atm or bar)
V is volume (in L)
n is the number of moles (in mol)
R is an experimentally determined ratio of about 0.82
T is the temperature (in Kelvin)
Note: For all gases, you need to convert Celsius or Fahrenheit to Kelvin.
Get V alone.
Plug in the values you have.
you get:
A fun fact: the gas used to fill up a balloon is Helium.