Answers
Answer:
C. The atom determines the chemical property of an element.
Explanation:
hope this helps!
The atom determines the chemical property of an element. Therefore, option (C) is correct.
In the 19th century, it was understood that atoms determined the chemical properties of elements. Various investigations and theories proposed by scientists such as John Dalton, Dmitri Mendeleev, and J.J. Thomson led to the development of this understanding.
They observed that various elements exhibited distinct chemical behaviours and properties, which they attributed to the atoms' distinct structure and composition. This knowledge contributed to the development of atomic theory in the nineteenth century by laying the groundwork for the periodic table.
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Related Questions
Dry ice is placed in the dish at room temperature as shown in the model below. Which is of these statements best describes the type of change and rationale of the change that is taking place?
Answers
Answer:
the correct one seems to me is : (b)
The table below shows two conclusions about atoms based on experiments by Thompson and Bohr.
Name of scientist Experimental Process Conclusion about atoms
Thompson Scatter radioactive particles It is a spherical object containing electrons in a massive positive charge distribution
Bohr Check the spinning motion of electrons Electrons are found outside the nucleus of the atom at various levels called shells, arranged like layers of an onion
Which of these statements best explains why Thompson and Bohr visualized the atom differently?
Atoms change their structure and particles from time to time.
Atoms cannot be described easily with the help of only one model.
Scientists do not agree with each other to strengthen science.
Scientists with varied experimental processes and interests perceive things differently.
Answers
Researchers accept proposing speculations that negate current hypotheses. So, the proper alternative is D i.e., Scientists with varied experimental processes and interests perceive things differently.
As of late, the structure of molecules has been found. Sometime recently the perfect demonstration of a molecule was found, and a few others were proposed and abandoned.
In J.J. Thomson's theory, Thomson compared the definition of an iota to that of a Christmas pudding. He claimed that atoms are made up of an emphatically charged circle with inserted electrons.
Additionally, he claimed that since the sizes of positive and negative charges break even, an iota as an entirety is electrically impartial.
Rutherford tested with α-particle diffusing on a gold sheet. He took note that the lion's share of the negative particles did not divert when they voyage through the gold foil.
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Describe the development of the zygote until implantation occurs.
Answers
Based on the data in the tables above, which of the following statements provides the best prediction for the boiling
point of NaCl?
(A)
(B)
(C)
(D)
NaCl will have a lower boiling point than NaF because the coulombic attractions are weaker in NaCl than in
NaF.
NaCl will have a boiling point between that of NaF and MgO because the covalent character of the bonds in
NaCl is intermediate between that of MgO and NaF.
NaCl will have a higher boiling point than MgO because the ions are spaced farther apart in NaCl.
NaCl will have a higher boiling point than MgO because the energy required to transfer electrons from the
anion to the cation is larger in NaCl than in MgO.
Answers
Answer:
NaCl will have a lower boiling point than NaF because the coulomb jc attractions are weaker in NaCl than in NaF
Explanation:
Because the ions in NaCl are further distant from one another than those in MgO, NaCl will have a higher boiling point.
Why is the boiling point of nonane so high?NaCl has a greater boiling point than MgO because its ions are wider apart from one another.Due to its longer carbon chain than octane, nonane will have a higher boiling point. Since octane branches less than 2,2,3,3-tetramethylbutane, it has a bigger "surface area" and stronger van der Waals forces, which will cause it to boil at a higher temperature.London dispersion forces are stronger in liquid I2 because I2 molecules have more polarizable electron clouds than Br2 molecules do.Distillation. Distillation is a process of separation based on variations in the boiling points of compounds, as explained in analysis: Interference removal: Distillation.The fact that larger molecules of the same kind have greater boiling points than smaller ones suggests that dispersion forces rise with mass, number of electrons, number of atoms, or some combination of these.To learn more about MgO, NaCl will have a higher boiling point refer to:
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Please answer them thanks
Answers
2. It would be 2
3. Sperm
4. It would be 1
What are some products of photosynthesis
Answers
- sun/access to sun
- water
-air mcmcmd
- no food bc plants create they’re own food :)
Answer:
some products of photosynthesis are carbon,hydrogen,oxygen,glucose
Which two generalizations can be made based on what you know about cycles of matter in a closed system?
-New-matter is added, and oid matter is destroyed:
-Matter changes its physical form, allowing it to return to its original state.
-The amount of matter within the system remains the same.
-Matter and energy can cross the boundaries of the system.
-The cycle has a well-defined starting and stopping point.
Answers
The amount of matter in the system is constant, and the cycle has a clearly defined beginning and end.
How does Physics Define Matter?A substance called matter is made up of several kinds of particles, occupies space, and has inertia. The many sorts of particle each have a unique mass and size according to the principles of current physics.
What exactly is a matter unit?The fundamental building block of the cosmos is the atom. Atoms are referred to be the basic matter units and have a nucleus made up of protons and neutrons with electrons revolving around it. Every component in the periodic table is made up of a unique arrangement of protons, neutrons, and electrons.
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(01.03 LC)
For an object at rest, the normal force equals the gravitational force. What is the sum of these forces called?
Group of answer choices
Inertia
Potential force
Net force
Unbalanced force
Answers
If the sum of the normal force equals the gravitational force, the sum of the two forces is called the net force.
What is the sum of forces?We know that force is a vector quantity. A vector quantity is a quantity that has both magnitude and direction. The direction of the vector can be shown by a bold face diagram with an arrow above the sign of the vector.
When we have more than two one force acting together, the resultant of the two forces obtained as a sun is called the net force hence, the sum of the normal force equals the gravitational force, the sum of the two forces is called the net force.
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Come up with a summery of what physical science is I’ll give brainliest
Answers
I need help to identify and label this joint diagram please help. Thanks
Answers
The joint is a ball and socket joint and the labeled diagram is attached.
What is a ball and socket joint?A ball and socket joint is a type of synovial joint in which the rounded head of one bone fits into the concave socket of another bone, allowing for a wide range of movement in all directions. This joint is also known as a spheroidal joint or enarthrosis.
The structure of a ball and socket joint allows for movements such as rotation, flexion, extension, adduction, and abduction.
Examples of ball and socket joints in the human body include the hip joint and the shoulder joint.
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Which is NOT true about cells?
Question 4 options:
Cells are in all living things
Every type of cell performs the same function
Cells can reproduce
Cells take in food and use energy
Answers
Answer:
B
Explanation:
3 type of cells that perform different functions
Answer:
every cell type preforms the same function
Explanation:
How does a mountain affect weather?
Answers
Answer:
Mountains have an impact on climate because they block wind and get more rain than low-lying areas. As air is driven over higher ground, it cools, condensing moisture and falling as rain. The higher above sea level an area is, the colder it is.
Answer:
Mountains can have a significant effect on the amount of rainfall. ... The further up the mountain the colder the temperature. Then, when the air travels back down the mountain it gets warmer and drier, because the moisture in the air dried out during the rise up the mountain. This area gets less rain as a result.
In ecosystems, plants transform light energy from the Sun into chemical energy when they make sugar. This sugar can then be consumed by other organisms to be used as building blocks for other molecules, such as proteins and fats, or it can be transformed into other forms of energy, such as kinetic energy, when the organism moves.
Which of the following statements is supported by the above information?
A.
Matter and energy can change forms and locations in ecosystems.
B.
Energy can change forms, but only one kind of matter exists.
C.
Matter and energy must always remain in the same form and location.
D.
Matter can change forms, but only one kind of energy exists.
Answers
Following the law of mass conservation and the principle of energy conservation, opion A is correct. Matter and energy can change forms and locations in ecosystems.
What happen with matter and energy in ecosystems?Matter and energy are not created or destroyed in ecosystems. They just move along cycles and flow through different biotic and abiotic structures, changing their state and moving from one form to another one.
According to the law of mass conservation (Antoine Lavoisier- 1785), mass remains constant in any closed system exposed to different chemical and physical processes.
According to the principle of energy conservation (Clausius and Lord Kelvin - XIX century), energy remains constant in a closed system, and under different situations, it can change its state from one form of energy to another one.
In a closed system -like the universe-, mass and energy can not be created or destroyed. They can only transform into other forms when exposed to different processes.
Option A is correct. Matter and energy can change forms and locations in ecosystems.
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1. A molecule that contains only carbon and hydrogen is called a
-
carbohydrate
carbonyl
hydrocarbon
hydroxyl
Answers
Answer:
hydrocarbon
Explanation:
It's called a hydrocarbon
Which of the following helps protect biofilms from issues such as drying out and predators
a.) Extracellular polymeric substances
b.) Quorum sensing
c.) Becoming sessile
d.) Autoinducers
Answers
Extracellular polymeric substances help protect biofilms from issues such as drying out and predators. Option A
Biofilms are complex communities of microorganisms that adhere to surfaces and form a protective matrix. They can be found in various natural and artificial environments, such as riverbeds, medical devices, and plumbing systems. Biofilms provide advantages to the microorganisms within them, including protection from environmental stresses and predators.
One of the key components that helps protect biofilms is extracellular polymeric substances (EPS). EPS are complex mixtures of polysaccharides, proteins, and DNA that are secreted by microorganisms within the biofilm. These substances form a matrix that encases the cells, providing structural support and protecting the community.
EPS help biofilms resist drying out by retaining water and preventing desiccation. The polysaccharides in EPS can absorb and retain moisture, creating a hydrated environment within the biofilm even in dry conditions. This is crucial for the survival of the microorganisms within the biofilm.
Additionally, EPS serve as a barrier against predators. The matrix formed by EPS can make it difficult for predators, such as protozoa or grazing organisms, to access and consume the microorganisms within the biofilm. It acts as a physical defense mechanism, limiting the exposure of the microorganisms to predation.
While quorum sensing, becoming sessile (immobile), and autoinducers are all important mechanisms and processes associated with biofilms, they do not directly address the protection of biofilms from drying out and predators. So Option A is correct.
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Why do we use anatomical position?
Answers
Answer:
We use anatomical position because it is the position of reference for anatomical nomenclature.
dose the amoeba cell have cells?
Answers
Answer:
Amoebae are eukaryotes whose bodies most often consist of a single cell.
Their cytoplasm and cellular contents are enclosed within a cell membrane
Explanation:
Answer:
No
Explanation:
Amoebae are eukaryotes whose bodies most often consist of a single cell. The cells of amoebae, like those of other eukaryotes, possess certain characteristic features. Their cytoplasm and cellular contents are enclosed within a cell membrane. Their DNA is packaged into a central cellular compartment called the nucleus
Which of the following concepts makes it legally right to reproduce a substantial portion of the works of another person with permission?
Answers
The concept that makes it legally right to reproduce a substantial portion of the works of another person with permission is Copyright. Option A
What is copyright all about?The concept of copyright grants the creator of an original work the sole rights to its use and distribution, usually for a limited time, with the intent of enabling the creator to receive compensation for their intellectual effort.
When someone else wishes to reproduce a substantial portion of those works, they must usually get permission from the copyright holder.
This permission can take the form of a license or contract that outlin the tems under which the work can be used.
The above answer is in response to the full question below;
Which of the following concepts makes it legally right to reproduce a substantial portion of the works of another person with permission?
A. Copyright
B. Fair use
C. Freedom of information
D. Intellectual freedom
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A volcanic island formed from bare lava rock can become a lush tropical island ecosystem of plants and animals. true or false
Answers
Answer:
true
Explanation:
It is very much so possible
What area would most likely experience the greatest amount of natural erosion?
Answers
Answer: Coastline
Explanation:
The erosion is caused by waves from by the storms
Select the best answer for the question.
1. The cycling between a gametophyte stage and a sporophyte stage is commonly known as what?
O A. Aquatic-terrestrial cycling
O B. Double fertilization
O C. Alternation of generations
O D. Diplohaplontic life cycle
Mark for review (Will be highlighted on the review page)
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Answers
The cycling between a gametophyte stage and a sporophyte stage is commonly known as alternation of generations.
What is alternation of generations?
Generational alternation is frequent in fungi, algae, and plants. This is comparable to sexual reproduction in animals, where each generation contains both haploid and diploid cells.
The haploid gametophyte and the diploid sporophyte, as well as asexual and sexual reproduction, rotate in plants. As a result, the term "generational alternation" is used to describe the plant life cycle. The capacity of plants for both sexual and asexual reproduction aids in their capacity for environmental adaptation.
Hence, the cycling between a gametophyte stage and a sporophyte stage is commonly known as alternation of generations.
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Which of these is NOT a forest ecosystem service?
A Stores carbon dioxide
B Absorbs and releases water
C Increases erosion
D Nutrient Cycling
Answers
Answer:
Nutrient Cycling
Explanation:
pls someone help me pls if u do u will get brain list
Answers
Answer: The answer is bones
Explanation: Bones are a hard connective tissue that make up the skeleton and are rich in calcium and other minerals.
As a result of your Zombie Apocalypse, the grass at a local park will no longer be mowed. What type of succession is this (primary or secondary)? Describe the stages of succession that will occur in the next 100 years.
What type of succession is this depicting?
Answers
Secondary succession is the kind of succession that might develop in a neighborhood park after the Zombie Apocalypse if the grass wasn't cut anymore and pioneer species would first colonize the bare soil.
Thus, pioneer species like weeds and grasses would colonize the bare soil and disturbed regions in the initial stage of secondary succession. These species can swiftly adapt to a new habitat since they are frequently resilient and rapidly developing.
In secondary succession, the pioneer species are the early settlers multiply and spread, the soil conditions become more stable and draw in additional species like shrubs and tiny trees. These animals are modifying the environment in a way that makes it possible for bigger and more diversified populations of creatures to live in more complicated settings.
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Write an expository essay about the ways gold has been used throughout history. Your expository essay must be based on this prompt and topic, and it must incorporate ideas and information found in the sources provided. Use your best writing to complete an essay that • is focused on your central idea; combines evidence from multiple sources with your own elaboration to develop your ideas; is organized and includes transitions within and among ideas; provides citations for quoted material and source ideas; and demonstrates correct use of grammar and language appropriate to the task. Write your multiparagraph essay to an academic audience in the space provided.
Answers
Since ancient times, gold has been a priceless and much desired resource. It has long been valued as a significant resource in many civilizations and societies due to its beauty, malleability, and scarcity.
What is malleability?A material's malleability, which refers to its capacity to shift into a new shape or form without breaking or cracking, is one of its physical properties.
It refers to a material's ability to withstand stretching, hammering, rolling, bending, and other forms of deformation without breaking or shattering.
It is simpler to mould a material into the shapes you want the more pliable it is. Metals like gold, silver, copper, and iron are frequently malleable materials, but some plastics can also be made malleable.
Since ancient times, gold has been a priceless and much desired resource. It has long been valued as a significant resource in many civilizations and societies due to its beauty, malleability, and scarcity. Gold has been used as money, a religious object, an ornament, and a status and power symbol throughout history.
Gold was used as money in Mesopotamia and Egypt as early as 3000 BCE. Around 600 BCE, Lydia in Asia Minor used electrum, the first gold coins ever discovered (Shaw). Gold coins were also employed as money by ancient Chinese and Indian emperors, and gold bars were a common method of commerce in Europe from the Middle Ages to the early 20th century (Shaw).
Gold has always been associated with spirituality in numerous civilizations. Gold was used to make religious artefacts like statues of gods and goddesses in ancient Egypt because it was thought that pharaohs were descended from the sun god Ra ("The Significance of Gold"). The breastplate of Aaron in the Jewish religion and the throne of Solomon in the Christian religion were both made of gold ("The Significance of Gold").
Due to its beauty and malleability, gold has been utilised as decoration in addition to being a medium of exchange and a religious object. Gold was used to make jewellery in ancient Egypt, and European goldsmiths were renowned for producing intricate and stunning pieces of jewellery during the Middle Ages (“The Significance of Gold”).
And last, throughout history, gold has been a representation of rank and dominance. Gold was a representation of riches and power in prehistoric Egypt and China ("The Significance of Gold"). In order to represent a person's position and power, gold was also utilised to make jewellery, crowns, and other adornments ("The Significance of Gold").shout the past. It has served as money, a religious object, decoration, and a status and power symbol throughout history.
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Simone is creating a model to track the movement of carbon atoms in an ecosystem. Which statement best explains the role of plants in Simone's model?
Answers
Although I cannot see the model for Simone's experiment, I can offer the insight that the most likely role of plants in the model is that they consume the carbon atoms and produce oxygen.
How do plants affect the carbon in the atmosphere?Plants are known to have a great effect on the carbon levels of the atmosphere. The correlation is that the more plants are present, the less carbon is free in the air. The reason for this is that plants use carbon dioxide as a substrate to manage the process of photosynthesis.As a by-product, after consuming carbon dioxide and completing photosynthesis, plants release oxygen into the atmosphere.Therefore, we can confirm that the most likely role of plants in the model created by Simone, is that they will consume carbon atoms in the form of carbon dioxide in order to sustain photosynthesis, which releases oxygen.
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what is geological substratum
Answers
Answer:
Explanation:
Geological substratum refers to the solid rock or layer of Earth's crust that lies beneath the soil, sediment, or other surface materials.
Hope it helps!!
Identity the dispersion pats in and discuss the possible reasons for the dispersion patter seen in the king penguins during nesting season
Answers
During the breeding season, king penguin dispersion is clumped. This is due to the fact that king penguins breed in colonies that can number in the thousands.
Because king penguins are colonial birds, which means they are sociable and like to nest in groups, they have a clumped dispersion pattern.
The birds may also keep in close contact with one another thanks to the clumped dispersion pattern, which enables them to plan their activity and defend their young.
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describe how the structure of an antibody is related to its function in your answer you must clearly link structure and function
Answers
Answer:
an antibody is a y-shaped structure which consists of four polypeptides, two heavy chains, and two light chains. this structure allows antibody molecules to carry out their dual functions: antigen binding and biological activity mediation
The function of antibodies, also known as immunoglobulins, is intricately linked to their unique structure.
These Y-shaped proteins consist of two heavy chains and two light chains. At the tips of the Y-shape, variable regions contain antigen-binding sites that enable antibodies to recognize and attach to specific antigens.
This structural specificity empowers antibodies to neutralize foreign substances, like pathogens or toxins, either by marking them for destruction or blocking their interactions with host cells.
Moreover, the flexible axis region of antibodies allows for optimal binding and adaptability.
The tight relationship between structure and function is essential for antibodies' role in defending against infections and contributing to immune responses.
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What is the surface of the Earth called?
Crust
Mantel
Inner core
Outer core
Answers
Answer:
crust
Explanation: