CHEMISTRY OF GLOW STICKS


THE 1ST SCREENSHOT HAS MY OBSERVATIONS.
(and some of the instructions)

THE OBSERVATIONS ARE NEEDED TO ANSWER THE QUESTIONS ON THE OTHER SCREENSHOTS.


THE 1ST SCREENSHOT IS NOT A QUESTION.



Thank You!


: )



(7th Grade)

Answer: The correct statement is: Atoms lose smaller particles during radioactive decay.

Explanation:

Radioactive decay is a process where unstable atomic nuclei lose energy by emitting radiation in the form of particles or electromagnetic waves. As a result of this process, the unstable atoms transform into a different element or isotope. During the decay, the atoms lose smaller particles such as alpha particles, beta particles, or gamma rays. This loss of particles changes the number of protons and neutrons in the nucleus, which leads to the formation of a new element.

statement describes what is gained or lost during radioactive decay: atoms lose smaller particles. That is the third option, as during radioactive decay, the nucleus of an atom can lose subatomic particles, such as alpha or beta particles, which results in the transformation of the original atom into a new atom or a different isotope of the same element.

Radioactive decay is a process by which the nucleus of an unstable atom loses energy by emitting subatomic particles, such as alpha or beta particles, or electromagnetic radiation, such as gamma rays. This loss of energy can result in the transformation of the original atom into a new atom or a different isotope of the same element.

Hence, the statement describes what is gained or lost during radioactive decay: atoms lose smaller particles, which is the third option.

Learn more about radioactive decay here.

https://brainly.com/question/17019467

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Explanation:

Less then 33

This isn't the full question

#Brainac

Answer:

Claim: A water molecule moves through the water cycle in a continuous journey that involves changes in state and location.

Evidence: The journey of a water molecule begins when it evaporates from a body of water, such as a lake or the ocean, due to the energy from the sun. The water molecule rises into the atmosphere and joins other water molecules to form a cloud. As the cloud moves, it may pass over a mountain and cool, causing the water molecules to condense into liquid or solid form and fall as precipitation. Some of the precipitation may fall into a lake or river, where it can flow downstream and eventually enter the groundwater system. The water in the groundwater system may eventually resurface in a lake or river, or it may be extracted from a well for human use.

Reasoning: The movement of a water molecule through the water cycle is driven by a combination of physical and chemical processes, including evaporation, condensation, precipitation, and infiltration. The sun provides the energy that drives the cycle, causing water to evaporate and rise into the atmosphere. As the water molecules cool, they may condense into clouds and eventually fall as precipitation. The movement of water through the cycle is also influenced by factors such as temperature, pressure, and gravity. For example, water will flow downhill due to gravity, which can cause it to move through the groundwater system and eventually resurface in a lake or river. Overall, the water cycle is a complex and continuous journey that is essential for maintaining the Earth's water supply and supporting life.

Explanation:

Answer:

The source of the elements that make up glucose in a plant is primarily carbon dioxide (CO2) from the air, water (H2O) from the soil through the roots, and energy from sunlight.

During photosynthesis, chlorophyll in the plant's leaves absorbs light energy and uses it to convert carbon dioxide and water into glucose and oxygen. This process involves a series of complex chemical reactions, collectively called the Calvin cycle, that occur within specialized structures in plant cells called chloroplasts.

In the first stage of the Calvin cycle, carbon dioxide molecules in the air are captured by an enzyme called rubisco and combined with a molecule called ribulose bisphosphate (RuBP). This results in the formation of an unstable molecule that quickly breaks down into two molecules of a three-carbon compound called 3-phosphoglycerate (3PG).

Next, the energy from sunlight is used to convert the 3PG molecules into a different three-carbon compound called glyceraldehyde 3-phosphate (G3P). Some of the G3P molecules are used to make glucose, while others are used to regenerate the original RuBP molecule that can be used in the next cycle.

Finally, the glucose molecules are transported throughout the plant and used as a source of energy for cellular respiration, which releases the stored energy in the glucose molecules to power various cellular processes in the plant. The oxygen produced during photosynthesis is released into the air as a byproduct of the process.

In summary, the source of the elements for the glucose that the plant makes is carbon dioxide from the air, water from the soil, and energy from sunlight.

Explanation:

Answer:

The source of the elements that make up glucose in a plant is primarily carbon dioxide (CO2) from the air, water (H2O) from the soil through the roots, and energy from sunlight.

During photosynthesis, chlorophyll in the plant's leaves absorbs light energy and uses it to convert carbon dioxide and water into glucose and oxygen. This process involves a series of complex chemical reactions, collectively called the Calvin cycle, that occur within specialized structures in plant cells called chloroplasts.

In the first stage of the Calvin cycle, carbon dioxide molecules in the air are captured by an enzyme called rubisco and combined with a molecule called ribulose bisphosphate (RuBP). This results in the formation of an unstable molecule that quickly breaks down into two molecules of a three-carbon compound called 3-phosphoglycerate (3PG).

Next, the energy from sunlight is used to convert the 3PG molecules into a different three-carbon compound called glyceraldehyde 3-phosphate (G3P). Some of the G3P molecules are used to make glucose, while others are used to regenerate the original RuBP molecule that can be used in the next cycle.

Finally, the glucose molecules are transported throughout the plant and used as a source of energy for cellular respiration, which releases the stored energy in the glucose molecules to power various cellular processes in the plant. The oxygen produced during photosynthesis is released into the air as a byproduct of the process.

In summary, the source of the elements for the glucose that the plant makes is carbon dioxide from the air, water from the soil, and energy from sunlight

Explanation:

Answer:

The answer is *consumer*

Answer: The discoveries of synthetic medicine have gave the pharmaceutical industry more opportunities to more efficiently assist others. The synthetic medications are more effective and could be more cost efficient for the people taking them and the manufacturers and thus also gives the pharmaceutical industry more relevance in terms of the medical industry and the scientific world.

Explanation: n-a

Answer:

Pat is most likely to have made the hydrofluoric acid. My first piece of evidence is that the chemical supply company delivered sulfuric acid and calcium fluoride to Pat’s house However, these substances were not found at Pat’s house. This could mean that Pat used these substances in a chemical reaction. This evidence supports my claim because a chemical reaction between sulfuric acid and calcium fluoride could cause the atoms to rearrange to form hydrofluoric acid as one of the products. This is because sulfuric acid contains hydrogen atoms, and calcium fluoride contains fluorine atoms, which are the two types of atoms that repeat to make up hydrofluoric acid.

My next piece of evidence is that the police found calcium sulfate at Pat’s house. This evidence supports my claim because if Pat mixed the sulfuric acid and the calcium fluoride to make hydrofluoric acid, then the other product of this reaction could be calcium sulfate. This is because only the hydrogen and fluorine atoms would rearrange to form hydrofluoric acid. The rest of the atoms of the reactants would have to rearrange to form another substance. Calcium sulfate is probably the other product that would form because its atom group contains all the atoms that did not rearrange to form hydrofluoric acid. This evidence suggests that Pat mixed sulfuric acid and calcium fluoride to make the hydro.. whatever.