Hydrogen peroxide breaks down to form water and oxygen gas. When this reaction occurred, the following observations were made:I. The mass of the solution remains the same.II. Phase changes are observed.III. The color of the solution remains clear.IV. The temperature of the solution increases. Which observation is evidence that a chemical change has occurred?

Answer:

IV. The temperature of the solution increases.

Explanation:

The evidence that shows a chemical change is the temperature of the solution increases. The correct option is D.

Chemical changes occur when one substance combines with another to form a new substance, which is referred to as chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

These processes are known as chemical reactions, and they are generally irreversible except through additional chemical reactions.

The average speed of the reaction molecules increases as temperature rises. As more particles move faster, the number of molecules moving fast enough to react increases, resulting in faster product formation.

By heating the mixture, you raise the energy levels of the molecules involved in the reaction.

As the temperature rises, the molecules move faster and "bump" into each other more frequently. More collisions provide more opportunities for reaction.

Thus, the correct option is D.

For more details regarding chemical change, visit:

https://brainly.com/question/23693316

#SPJ2

Which of Krakauer's strategies best supports his ability to gain a deeper understanding of who McCandless was as a person?
A) Structuring the text so that we learn the details of McCandless's last days only after getting to know him
B) Researching to discover the probable cause of McCandless's death
C) Interviewing McCandless's family and the people he met in the last months of his life
D) Describing the terrain and environment where McCandless died

WHY DO THEY CALL YOUR SHIP THE
"CHUCKIE V"?

Tell me the facts not the fiction for the nickname.

In “Bleeding Kansas” in the mid-1850’s, _________ was/were identified with the proslavery element, and ______ was/were associated with the antislavery free soilers.

In this assignment, you will continue to learn how to write a document-based question (DBQ) essay. If
you have worked on part 1, you will add purpose to your graphic organizer by examining a set of six
documents. Then, you will use historical context to revise your thesis, and add outside historical evidence
to write an introductory paragraph.
If you did not work on part 1, you will deconstruct a prompt and complete a graphic organizer by
examining a set of documents to determine their point of view, intended audience, historical context, and
purpose. Then, you will use historical context to revise your thesis, and add outside historical evidence to
write an introductory paragraph.

WILL MARK BRAINLIEST ONLY IF YOU SHOW WORK

You throw a ball upwards from a starting height of 0.0m with a velocity of 4.56m/s. a) What is the vi? b) what is the velocity when the ball reaches its highest point? c) What is the acceleration when you throw the ball? d) What is the acceleration at the ball’s highest point? e) What is the velocity right as the ball reaches your hand on its way back down? (Your hand is at di=0m)

Which Ariana Grande perfume do you recomend? I want to get another one, so which ones best? :)

"You'll get water on your clothes" positive response

Which of the following is a skill?
A Singing
B. Knitting
G. Running
D. Walking

Explain how digital communications are affecting many aspects of
relationships.
please make it long thank u

i need opinions how do you get a kid to be good? He is 3 years old turning 4, 2/22/2021

The best type of soil for farming has a high organic content and a mixture of sediment particle sizes. Which of the
following statements correctly explains how particle sizes affect the soil?
A) Small particles, such as clay, help to retain moisture.
B) Small particles, such as sand, help to repel chemical additives.
C) Large particles, such as clay, help in the flow of water.
D) Large particles, such as pebbles, help to retain moisture.

high iq question. Jesus is epic.
A.) Strongly agree
B.)Agree
C.)yes
D.) Duh