When components do not combine chemically, it is a _____. compound substance mixture molecule
2 answers:
Answer: Option (c) is the correct answer.
When an atom donates or shares its valence electrons with other atoms then it results in the formation of a new atom. This means a chemical has occurred as the chemical composition of products will be different from the reactants.
Whereas a substance is a matter which contains specific composition with some specific properties.
When two or more substance are mixed together then it is known as a mixture. It is not necessary that substances added will combine with each other.
When atoms of similar element chemically combine together then they result in the formation of a molecule.
For example,
Therefore, we can conclude that when components do not combine chemically, it is a mixture.
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The new pressure is 1.08 atm
<h3>Gas law </h3>From the question, we are to determine the new pressure
Using the General gas equation,
Where P₁ is the initial pressure
V₁ is the initial volume
T₁ is the initial temperature
P₂ is the final pressure
V₂ is the final volume
and T₂ is the final temperature
From the given information,
P₁ = 1.5 atm
V₁ = 15 L
T₁ = 105 C = 105 + 273.15 = 378.15 K
V₂ = 25 L
T₂ = 181 C = 181 + 273.15 = 454.15 K
P₂ = ?
Putting the parameters into the equation, we get
P₂ = 1.08 atm
Hence, the new pressure is 1.08 atm
Learn more on Gas laws here: brainly.com/question/25736513
Answer:
The pH of the buffer solution is 4.60.
Explanation:
Concentration of acid =
Concentration of salt =
Dissociation constant =
The pH of the buffer can be determined by Henderson-Hasselbalch equation:
pH = 4.60
The pH of the buffer solution is 4.60.