I think the answer is B
The correct answer is option B which is fusion occurs in the sun.
Explanation:Fusion in nuclear physics is an reaction in which two or more nuclei fuse to form another atom and due to mass conservation they also release energy.This reaction is common in sun and provides energy to sun.In sun two hydrogen atoms fuse to for a helium nuclei and giving some amount of energy.In sun there are 620 million metric tons of hydrogen fuse together each second.which of the following is more electronegative:
1) CF3
2) CH3
please provide some explanation, thanks
Final answer:
The group CF3 is more electronegative than CH3 due to the presence of fluorine atoms, which have a significantly higher electronegativity (4.0) compared to the electronegativity of hydrogen atoms (2.1) in CH3.
Explanation:
To determine which of the two groups - CF3 or CH3 - is more electronegative, we should consider the electronegativity of the atoms involved. In CF3, the fluorine atoms have an electronegativity of 4.0, which makes them significantly more electronegative than carbon, which has an electronegativity of 2.5. In contrast, in CH3, the hydrogen atoms have an electronegativity of 2.1, which is closer to that of carbon, resulting in less polarization than in CF3.
Based on the individual electronegativities of fluorine and hydrogen, and knowing that fluorine is much more electronegative than carbon, the CF3 group is more electronegative than the CH3 group. This is because the presence of fluorine atoms, which can better stabilize a negative charge, leads to a greater tendency for polarization and creating a strong dipole moment in compounds they are part of.
tifanny has read 115 pages of her book .she has 152 pages left to read. how many pages are in the book
115 + 152 = 267
there are 267 pages total.
Multicellular plants and animals have organs to perform specific functions.What do eukaryotic cells have to perform specific functions
organelles perform specific functions in cells
Which unit is used for measuring atomic mass? A. atomic mole B. grams/mole C. grams D. atomic mass unit E. atomic mass weight
The atomic mass is defined as the mass an atom of an element. The atomic mass in approximation is equal to the sum of number of neutrons and protons in the nucleus of an atom (mass number). The units which are used for measuring the atomic mass is atomic mass unit, [tex]u[/tex].
Thus, the correct option is option E that is atomic mass unit is used for measuring atomic mass.
Answer:
Explanation:
unit isnt e its d
6. This part of Earth's atmosphere blocks the sun's harmful rays. (4 points)
Answer:
stratosphere Here you go
Explanation:
The equal areas law is Keplers 2nd law of motion of planetary motion. It states that _____
An imaginary line joining a planet and the sun sweeps out an equal area of space in equal amounts of time. Thus, the speed of the planet increases as it nears the sun and decreases as it recedes from the sun.
Answer: It states that a line joining a planet and the sun sweeps an equal area in equal time, moving along its orbit.
Explanation: It tells us about the speed of a planet revolving around the sun in an elliptical orbit. The speed of the planet varies inversely to the distance, when the planet is closer speed is high and speed is low when it recedes from the sun. The rate at which area is being swept out is constant ,that is 'equal area in equal time'.
how many electrons are in orbitals related to the third energy level of a sulfur atim
Answer:
6 electrons
Explanation:
6 electrons are in orbitals related to the third energy level of a sulphur atom.
What are orbital?An atomic orbital is a function in atomic theory and quantum mechanics that describes the location and wavelike behaviour of an electron in an atom. The probability of finding an electron in any region of an atomic nucleus can be calculated using this function.Chemists use the electron cloud model to map electron atomic orbits. Not all of these probability maps are spherical. S orbits are spherical in shape, which helps predict trends observed in the periodic table. The p-orbital is shaped roughly like blades on opposite sides of the nucleus.The electron will be found within a fairly easily defined region of space quite close to the nucleus 95% of the time (or any other percentage you choose).To learn more about orbit, refer;
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The Big Bang is responsible for the formation of two elements found in our universe, hydrogen and helium. The rest of the elements are created by stars during the various stages in their life cycle.
A. True
B. False
How is the nucleus of an atom split?
radioactive decay
chemical reaction
collision of atoms
collision with a high-speed particle
Answer:
D. Collision with a high-speed particle.
Explanation:
During a process called nuclear fission, some nuclei can be hit by fast-moving atomic particles and thus can be broken down into smaller nuclei. Energy is given off in this process, which is the basis for nuclear power plants.
The ethic of sustainable development has evolved with a view to _____.
What kind of chemist studies chemical reactions involved in photosynthesis the process that plants use to make food?
Answer;
-Biochemist
Explanation;
Biochemistry is the study of the chemical reactions that take place within living cells. These includes photosynthesis in plants, thus a biochemist studies chemical reactions involving photosynthesis.
Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
What are some physical properties that could have helped to identify a mystery powder?
A mystery powder can be identified by observing its physical properties such as color, texture, density and solubility. More advanced methods like X-ray crystallography can also be employed to understand the atomic arrangement in the substance.
Explanation:In order to identify a mystery powder, you can observe its physical properties, characteristics of the matter that are not associated with any change in its chemical composition. Some of the primary physical properties that you can examine include its color, texture, density, and solubility in water. Furthermore, more advanced methods, such as X-ray crystallography, can help provide insights into the crystal structure of the substance in question, potentially providing definitive information about its identity. This method uses the diffraction pattern produced by X-rays scattered from a crystal to reveal the size, shape, and atomic arrangements within the substance.
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Physical properties like color, density, melting point, boiling point, and hardness are key to identifying a mystery powder. These properties, often observable through sight or simple instruments, can reveal the substance's identity based on its chemical composition and structure.
Physical properties are crucial for identifying a mystery powder. For instance, the color of the powder can provide the first clue. Chemists observe properties like odor, which might be indicative of the substance composition. State is also an essential property; understanding whether the substance is solid, liquid, or gas under normal conditions can help narrow down the possibilities.
The powder's density could reveal its compactness or how it might be used in certain applications. The melting point and boiling point are critical in determining the conditions under which the powder remains stable. Hardness is another physical property that can differentiate between minerals or compounds; it may also give clues about the handling and processing of the powder. Observing the crystal shape, such as in halite, offers insights into the atomic arrangement and can confirm the substance's identity when viewed under a microscope.
Simple tests for these properties do not require advanced technology and are based on macroscopic observations. Chemists use their senses and straightforward instruments to assess these characteristics. The properties are a direct manifestation of the substance's microscopic traits, such as atomic or molecular arrangement, which are fundamental in identifying and understanding the application of the powder.
what is the heaviest element that can be formed in the stars
The Heaviest element is helium
How does repeatability have an affect on scientific research?
A. Repeatability builds trust in the results of investigations and builds respect for the individuals performing them in the scientific community.
B. False claims usually go unnoticed since evidence is easily duplicated through repeated trials.
C. If one piece of data is missing in order for a specific conclusion to be made, that data can be added to an experiment because it is likely to not be reproduced.
D. Scientific research is not really affected by repeatability because most scientists trust the work of others in their field of research.
A. is the answer, because the more an experiment is repeated, it will become apparent if it yields the same results thus confirming or debunking the hypothesis.
What is saponification
Saponification is a process that involves conversion of fat or oil into soap and alcohol by the action of heat in the presence of aqueous alkali
What is system input?
A.
Feedback from scientists about the results of a system
B.
The ordered processes that the system uses to change raw material
C.
Material that has been changed by a system
D.
Raw material that must be put into a system for processing
d Raw material that must be put into a system for processing
Answer:
The raw material that is added to a system for processing.
Study Island
(Free points) Is a subatomic particle of an atom the smallest unit of matter? Or is and atom the smallest part of matter?
subatomic matter is not the smallest unit of matter, but its definetely smaller than atom. fernions which form subatomic particles is the smallest unit of matter.
An atom is the smallest unit of matter. It is the smallest component of an element that still has the properties of that element. Atoms are made of three particles. protons, neutrons, and electrons.
Which is a question which science cannot answer? How does the moon affect tides on earth? How long does it take for the earth to rotate on its axis? When will the next earthquake happen? Why do volcanoes erupt?
Till now we are able to find
a) How does the moon affect tides on earth? : the answer is moon gravitational field
b) How long does it take for the earth to rotate on its axis? : we know the answer is 24 hours (a day)
c) Why do volcanoes erupt? : due to divergence / convergence of tectonic plates
However we still cannot predict "When will the next earthquake happen?" based on science
Science cannot answer the presence of God.
Part 2.The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon. Another bulge occurs on the opposite side, since the Earth is also being pulled toward the moon and away from the water on the far side.Since the earth is rotating while this is happening, two tides occur each day.Part 3.23 hours and 56 minutes.
In this time all the stars appear to revolve once around the Earth and return to their starting positions.Pat 4.Next earthquake prediction can be made by earthquake prediction which is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of future earthquakes within stated limits, and particularly "the determination of parameters for the next strong earthquake to occur in a region.An earthquake is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves.Part 5.Volcanoes erupt because of density and pressure. The lower density of the magma relative to the surrounding rocks causes it to rise (like air bubbles in syrup).
It will rise to the surface or to a depth that is determined by the density of the lawa and the weight of the rocks above it.
Sodium reacts with chlorine gas to form sodium chloride. 2Na + Cl2 → 2NaCl What mass of chlorine gas will react with 92.0 g of sodium?
A. 298 g Cl2
B. 142 g Cl2
C. 63 g Cl2
D. 246 g Cl2
Planets appear to move in the sky against the backdrop of the ____ . other planets B. the stars C. the sun D. the moon
I would say B. the stars
This is because you don't see stars move. For example, when you look at the moon, do you see the stars move while the moon sits in place? No right. So, your answer would be B. Hope this helps!
Question
Planets appear to move in the sky against the backdrop of the ____ . other planets B. the stars C. the sun D. the moon
Answer:
The stars
Hope this helps!
a mixture in which the substances are not evenly mixed
heterogeneous mixture
A heterogeneous mixture contains substances that are not evenly mixed, and its composition is not uniform throughout, with the individual substances remaining separate. Examples include vegetable soup and cereal in milk.
A heterogeneous mixture is a combination of two or more substances where the composition is not uniform throughout the mixture. For example, vegetable soup is a heterogeneous mixture because any given spoonful of soup will contain varying amounts of the different vegetables and other components, making it non-uniform. An important characteristic of a heterogeneous mixture is that the substances that make it up are not in a fixed ratio; they remain physically separate and can be seen as distinct parts of the mixture.
Another example of a heterogeneous mixture is cereal in milk, where the different components, like flakes, fruits, and nuts, can be individually identified. Similarly, soil is also a heterogeneous mixture consisting of pebbles, plant matter, and sand, which do not blend into a uniform composition. These examples highlight that the individual substances within a heterogeneous mixture retain their own properties and do not combine to form a single, uniform substance.
In contrast, homogeneous mixtures (or solutions), such as salt water, act as a single substance, so it is not obvious that two or more substances are present, appearing uniform throughout.
What is the theoretical yield of N2O5 when 28.0 g of N2 reacts with 68.0 g of O2 in the following equation? 2 N2 + 5 O2 → 2 N2O5
The theoretical yield of N₂O₅ is 91.8 g.
We have the masses of two reactants, so this is a limiting reactant problem.
We know that we will need a balanced equation with masses, moles, and molar masses of the compounds involved.
Step 1. Gather all the information in one place with molar masses above the formulas and masses below them.
M_r: 28.01 32.00 108.01
2N₂ + 5O₂ ⟶ 2N₂O₅
Mass/g: 28.0 68.0
Step 2. Calculate the moles of each reactant
Moles of N₂ = 28.0 g N₂ × (1 mol N₂/28.01 g N₂) = 0.9996 mol N₂
Moles of O₂ = 68.0g O₂ × (1 mol O₂/32.00 g O₂) = 2.125 mol O₂
Step 3. Identify the limiting reactant
Calculate the moles of N₂O₅ we can obtain from each reactant.
From N₂: Moles of N₂O₅ = 0.9996mol N₂ × (2 mol N₂O₅/2 mol N₂) = 0.9996 mol N₂O₅
From O₂: Moles of N₂O₅ = 2.125 mol O₂ × (2 mol N₂O₅/5 mol O₂) = 0.8500 mol N₂O₅
The limiting reactant is the one that gives the smaller amount of N₂O₅.
Step 4. Calculate the theoretical yield of N₂O₅.
Mass of N₂O₅ = 0.8500 mol N₂O₅ × (108.01 g N₂O₅/1 mol N₂O₅) = 91.8 g N₂O₅
The theoretical yield is 90.7 g.
We know that;
Number of moles of N2= 28.0 g/28 g/mol = 1 moles
Number of moles of oxygen = 68.0 g/32 g/mol = 2.1 moles
From the reaction equation;
2 N2 + 5 O2 → 2 N2O5
2 moles of N2 reacts with 5 moles of O2
1 mole of N2 reacts with 5 × 1/2 = 2.5 moles of O2
This implies that O2 is the limiting reactant.
5 moles of O2 yields 2 moles of N2O5
2.1 moles of O2 yields 2.1 × 2/5 = 0.84 moles
Theoretical yield of N2O5 = 0.84 moles × 108 g/mol = 90.7 g
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what type of organism might contain this type of cell
Final answer:
A eukaryote is an organism with cells that have a complex nucleus surrounded by a double membrane, numerous membrane-bound organelles, and a cytoskeleton. These characteristics allow eukaryotic cells to perform complex functions and include life forms like plants and animals.
Explanation:
Type of Organism with Complex Cells
The organism described, characterized by a complex nucleus surrounded by a double membrane, numerous membrane-bound organelles, and a cytoskeleton, is known as a eukaryote.
A eukaryotic cell has a distinct nucleus that is enclosed within a nuclear membrane, also known as the nuclear envelope, which contains nuclear pores.
This structure allows for the distinct separation of the cell's genetic material from the cytoplasm.
In addition, eukaryotic cells contain various organelles, such as the mitochondria, endoplasmic reticulum (ER), Golgi apparatus, lysosomes, and peroxisomes, all of which perform specific functions vital to the cell's operation and are coordinated in part by the cell's cytoskeletal framework.
Eukaryotic organisms encompass a wide range of life forms, including protozoans, algae, fungi, plants, and animals.
These organisms' cells possess multiple, rod-shaped chromosomes composed of DNA and protein, rather than the single, circular chromosome found in most prokaryotic cells.
This sophisticated cellular architecture allows eukaryotic cells to undertake more complex tasks and adapt to a variety of life processes.
Question: What type of organism might contain cells with a unique structure, characterized by a complex nucleus surrounded by a double membrane, numerous membrane-bound organelles, and a cytoskeleton?
List 10 things that are matter and 10 things that are not matter.(Total of 20 things)
Things that are matter:
1. Water
2. Air
3. Pillows
4. Tables
5. Chairs
6. Pencils
7. Erasers
8. Pens
9. Computers
10. Tablets
Things that are not matter:
1. Memories
2. Heat
3. Sound
4. Interpretations
5. Thoughts
6. Light
7. Happiness
8. Anger
9. Sadness
10. Fear
Matter is anything that takes up space. Using this general knowledge, we can create a list of things that are matter. I just looked around and thought of a couple of things, but you can definitely find any kind of matter around your house!
10 things that are matter:
a notebooka water bottlea jacketan iPhonea backpacka keyboarda scrunchie a booka pursean appleSomething that is not matter is anything that does not have volume or mass.
10 things that are not matter:
an ideaa smilesunlighta thoughtsoundcolora reflectiona feeling (sadness, happiness)gravityenergywill mark as brainlest!
What is the wavelength of an electromagnetic wave that travels at 3 x 108 m/s and has a frequency of 60 MHz? (1 MHz = 1,000,000 Hz)
The wavelength of an electromagnetic wave that travels at 3 x 108 m/s and has a frequency of 60 MHz is 5m
The formula for calculating the wavelength of the electromagnetic wave is expressed as:
λ =v/f where
v is the velocityf is the frequencyGiven the following parameters
f = 60MHz = 60,000,000Hz
v = 3 x 10⁸ m/s
Substitute the given parameters into the formula as shown:
[tex]\lambda =\frac{3 \times 10^8}{6 \times 10^7} \\\lambda = \frac{3}{6} \times 10^{8-7}\\\lambda = \frac{1}{2} \times 10\\\lambda = 5m[/tex]
Hence the wavelength of an electromagnetic wave that travels at 3 x 108 m/s and has a frequency of 60 MHz is 5m.
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The wavelength of an electromagnetic wave that travels at 3 x 10⁸ m/s with a frequency of 60 MHz is 5 meters.
Explanation:To calculate the wavelength of an electromagnetic wave, you can use the wave equation, which relates the speed of light (c), wavelength (λ), and frequency (f) of the wave:
c = λ × f
Where:
c is the speed of light in a vacuum, approximately 3 × 10⁸ m/sλ is the wavelength in metersf is the frequency in hertz (Hz)Given the frequency of 60 MHz (60 × 10⁶ Hz), we can rearrange the equation to solve for λ:
λ = c / f
λ = (3 × 10⁸ m/s) / (60 × 10⁶ Hz)
After calculating, you find that λ = 5 meters.
What is the process that changes the composition of rocks by dissolving them called?
Erosion
Deposition
Physical weathering
Chemical weathering
Answer:
Chemical weathering
Explanation:
Answer:
Chemical Weathering
Explanation:
Hope this helps <33
Have a nice day and also can i have brainliest plz? :)
which is the least reliable method for identifying a mineral
Color of mineral is the least reliable method for identifying a mineral.
Explanation:The same mineral can come in a variety of colors and different minerals can be the same color. The color can change over time do to weathering. Color of a mineral is easily observed as it does not need specific methodology.Color identification can be done by simple observation.It's color, my son got this one right.
is 214/82 Pb --> 0/-1e + 214/81 Ti balanced
No, your equation is not balanced.
[tex]_{82}^{214}Pb\: \longrightarrow \:_{-1}^{0}He \:+ \: _{81}^{214}Tl\\[/tex]
The main point to remember in balancing nuclear equations is that the sums of the superscripts and the subscripts must be the same on each side of the equation.
Sum of superscripts: 214 = 0 + 214.
Sum of subscripts: 82 ≠ -1 + 81.
Your subscripts are not balanced.
If the equation represents the β decay of lead-214, you must write it as
[tex]_{82}^{214}Pb\: \longrightarrow \:_{-1}^{0}e \:+ \: _{83}^{214}Bi\\[/tex]
make a claim about copper and silver based on their position relative to each other
aluminum, sulfur, and chlorine are elements found on the periodic table. tests involving these three elements would show that at normal room temperature
Answer is: aluminum is malleable and conducts electricity.
Mallebility is the property or ability of the metal to be hammered or pressed into shape without breaking or cracking.
Aluminium (Al) is metal, sulfur (s) and chlorine (Cl) are nonmetals.
Metals conduct electricity because of the metallic bond, sulfur and chlorine can not conduct electricity because they are nonpolar compounds.
Metallic bond is formed between electrons and positively charged metal ions
Answer:
aluminum is malleable and conducts electricity.
Explanation: