The air inside a bubble gum bubble is at atmospheric pressure. Imagine someone continuing to blow into that bubble. What happens
2 answers:
Answer: Option (D) is the correct answer.
Explanation:
According to Charles' law, at constant pressure volume of an ideal gas is directly proportional to the absolute temperature.
Mathematically, V T at constant P
Therefore, when volume of a bubble gum is doubled by blowing air inside it then there will also be two times increase in its temperature since volume is proportional to temperature.
Therefore, we can conclude that when the bubble’s volume is doubled then the bubble’s temperature will also get doubled.
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Answer:
Explanation:
A physical change occurs when only the physical properties change. They are generally reversible and no new substances are formed.
However, in a chemical change, the chemical structures and properties change, plus new substances are formed.
Let's analyze each answer choice.
1. Change in state of matter
The state of matter is a physical property, so this is a physical change.
2. Precipitate was formed
A precipitate is a solid formed in a liquid solution. This is a new substance and a chemical change.
3. Unexpected change in odor.
A change in odor is a sign of chemical change.
4. Formation of bubbles
Bubbles signify the formation of gas or a new substance.
So, the best answer choice is <u>A. change in state of matter</u>
The product(s) of the reaction are to be determined given the reactants, sulfuric acid and potassium hydroxide. sulfuric acid is an acid, whereas potassium hydroxide is a basic. The results of this neutralizing process are salt and water.
<h3>What is the reaction between sulfuric acid and potassium hydroxide?</h3>The result will be, H+ from H₂SO₄ reacts with OH- from KOH to generate H₂O. Also, K+ reacts with SO₄²⁻ to create K₂SO4₄
As a result, the balanced equation will be:
Thus, the product(s) of the reaction are to be determined given the reactants, sulfuric acid and potassium hydroxide. Sulfuric acid is an acid, whereas potassium hydroxide is a basic. The results of this neutralizing process are salt and water.
Learn more about potassium hydroxide
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