The atomic number of the element fluorine is 9. The isotope Fluorine-18 has a mass of 18 and fluorine-19 has a mass of 19. What is the reason for their mass differences?

Answers

Answer 1

Answer:

Atomic mass is made up by the electrons protons and neutrons in an element. The reason for the mass differences are because of the varying number of electrons.


Related Questions

need rn! worth 13 ~ 謝謝

Answers

It is B I think

Hope this helped

Development and the specialization of cells happens in unicellular organisms

Question 9 options:
True
False

Answers

I think that question is true don’t but not sure

Explain Why is there a net gain of onlý two ATP
molecules in the glycolysis of one six-carbon glucose?

Answers

Answer:

While 4 molecules of ATP are produced in total, 2 were used to convert glucose to the reactive fructose-1,6-bisphosphate

Thus, 4 ATP- 2ATP= 2ATP

Explanation:

In the cytoplasm, cellular respiration starts, where glucose is broken down for energy production. in the presence of oxygen, energy is produced through aerobic respiration, while in an oxygen-deprived environment, anaerobic respiration can be carried out.

Glucose is a relatively stable molecule, thus in order for the pyruvate-producing reaction to occur, the molecule undergoes phosphorylation through the addition of high energy phosphate groups to drive the reaction forward.

Pyruvate is generated through glycolysis in the cytoplasm-it is oxidized to form acetyl CoA in aeroboc respration also used in fermentation (anaerobic respiration) as an electron acceptor.

Why is there Cholesterol in your cell membrane?

Answers

Answer:

Cholesterol functions to immobilise the outer surface of the membrane, reducing fluidity. It makes the membrane less permeable to very small water-soluble molecules that would otherwise freely cross. It functions to separate phospholipid tails and so prevent crystallisation of the membrane.

Explanation:

Cholesterol functions to immobilise the outer surface of the membrane, reducing fluidity. It makes the membrane less permeable to very small water-soluble molecules that would otherwise freely cross. It functions to separate phospholipid tails and so prevent crystallisation of the membrane.

It helps to restrict the passage of molecules. Since it is small, it can work to fit and block off water soluble molecules from diffusing into the membrane.

cellular respiration is the process of taking what and oxygen to produce 38 ATP and some heat?

Answers

a.) Glucose

b.) Muscles

c.) Glycolysis

d.) anaerobic

e.) Fermentation

f.) Animal

g.) Plant

It was explained (Very Weirdly) in the khan academy video linked.

Explain why meiosis is such a critical process in the inheritance traits. Be as specific as you can.

Answers

Answer:

It ensures that sexually reproduced offspring have the correct amount of chromosomes when born, this ensures that disorders such as down syndrome don't occur. It also makes genetic variation possible, by way of genetic recombination, this is so that siblings don't look exactly the same, disregarding twins.

Explanation:

Meiosis is such a critical process in the inheritance of traits, and meiosis is important because it ensures that each daughter cell receives the correct number of chromosomes from the parent cells.

What is the significance of the inheritance of traits?

Inheritance of traits allows for the transfer of beneficial traits from one generation to the next, allowing populations to adapt to changing environmental conditions, and the study of inheritance of traits can provide insight into the underlying genetic causes of diseases. The understanding of the traits helps in the improvement of agriculture and in other fields of biology.

Hence, meiosis is such a critical process in the inheritance of traits, and meiosis is important because it ensures that each daughter cell receives the correct number of chromosomes from the parent cells.

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Plant cells contain a large central vacuole. If the vacuole of a plant cell were damaged, which of the following would most likely occur?


The plant would be unable to produce proteins.


The plant would wilt due to loss of water within the cells.


The plant leaves would turn brown from losing pigmentation.


The plant would flourish due to its ability to store excess water

Answers

Answer:

The plant would wilt due to loss of water within the cells

Explanation:

In plant cells, vacuoles help maintain the balance of water. A single vacuole may occasionally occupy the majority of a cell's inner volume. Thus, option B is correct.

What is the major function of plant vacuole?

Maintaining cell acidity and turgor pressure, controlling the storage and movement of substances, regulating the movement and localization of crucial proteins.

Via the endocytic and lysosomal-vacuolar transport pathways, and responding to biotic and abiotic stresses are just a few of the main roles of vacuoles.

A membrane-bound cell organelle known as a vacuole. Vacuoles, which are commonly seen in animal cells, help to sequester waste.

Therefore, The plant would wilt due to loss of water within the cells.

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Which process is part of the carbon cycle?

A. Photosynthesis
B. Transpiration
C. Evaporation
D. Fixation

Answers

Hey there!

Photosynthesis is part of the carbon cycle.

Plants absorb carbon dioxide & sunlight in the middle of the photosynthesis process and create glucose (a type of sugar).

I hope this helps,

have a wonderful day. :)

Photosynthesis is part of the carbon cycle. Therefore option A is correct.

Photosynthesis is a vital process in the carbon cycle, which is the biogeochemical cycle that describes how carbon is exchanged and recycled between the atmosphere, living organisms, oceans, and the Earth's crust.

During photosynthesis, green plants, algae, and some bacteria convert carbon dioxide (CO2) from the atmosphere into organic compounds, such as glucose, using sunlight as an energy source.

This process removes CO2 from the atmosphere, reducing greenhouse gas levels and helping to regulate the Earth's climate.

It is an essential step in maintaining the balance of carbon in the biosphere and plays a significant role in sustaining life on our planet.

Therefore option A Photosynthesis is correct.

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Is the pH of Claire's small intestine below, within, or above the optimal range of each enzymes?

Answers

Answer: Protease is within

Lipase is within

Carbohydrase is within

Explanation:

Because a pH of 9.1 is within the green area for every graph, Claire’s pH is within the optimal range for every enzyme.

NEED HELP TODAY PLZ HELP
Which of the following would most likely to cause cancer (choice in picture)

Answers

Answer:

C

Explanation:  

Answer:

Explanation:

Which of the following is a description of trait of a country with a high
carrying capacity?
O A. Food grown on land near homes
B. Spending hours per day collecting water
C. Easy access to safe drinking water
O D. Very little access to refrigeration
SOMEONE PLEASE HELP ME IM STUCK ON THIS PLEASEEEE

Answers

The correct answer is D

Answer:easy access to safe drinking water

Explanation:

Similarities in Aemoba and Humans

Answers

Answer:

Both Amoeba and human beings are heterotrophs and derive nutrition from other organisms. Dissimilarity: Human beings have a complex digestive system and different nutrients are digested in separate regions. Amoeba does not have a digestive system and all the nutrients are digested in the food vacuole.



Discuss how the properties of water help Earth support life.

Water Property:

Importance to Life:

Polar molecule:

Hydrogen bonding:

Cohesion:

Adhesion:

Surface Tension:

Temperature Moderation:

Low density of Ice:

Universal solvent:

Answers

Answer:

One of water’s important properties is that it is composed of polar molecules. The two hydrogen atoms and one oxygen atom within water molecules (H2O) form polar covalent bonds. While there is no net charge to a water molecule, the polarity of water creates a slightly positive charge on hydrogen and a slightly negative charge on oxygen, contributing to water’s properties of attraction. Water’s charges are generated because oxygen is more electronegative, or electron loving, than hydrogen. Thus, it is more likely that a shared electron would be found near the oxygen nucleus than the hydrogen nucleus. Since water is a nonlinear, or bent, molecule, the difference in electronegativities between the oxygen and hydrogen atoms generates the partial negative charge near the oxygen and partial positive charges near both hydrogens.

Explanation:

As a result of water’s polarity, each water molecule attracts other water molecules because of the opposite charges between them, forming hydrogen bonds. Water also attracts, or is attracted to, other polar molecules and ions, including many biomolecules, such as sugars, nucleic acids, and some amino acids. A polar substance that interacts readily with or dissolves in water is referred to as hydrophilic (hydro- = “water”; -philic = “loving”). In contrast, nonpolar molecules, such as oils and fats, do not interact well with water, as shown in. These molecules separate from it rather than dissolve in it, as we see in salad dressings containing oil and vinegar (an acidic water solution). These nonpolar compounds are called hydrophobic (hydro- = “water”; -phobic = “fearing”).

The properties of water help Earth support life helps in various ways.  Most of the role of the water in supporting life is because of its molecular structure which causes its specific properties.

Water is a simple molecule made of two small, positively charged hydrogen atoms and one large negatively charged oxygen atom.

Polar molecule: The charge difference between the positive charge on one side and the negative charge on the other side form an asymmetrical molecule called a polar molecule that interacts with different molecules. Hydrogen bonding: Due to hydrogen bonding water has various life-supporting properties by the interaction of various molecules. Cohesion: water molecules attract other water molecules in a property called cohesion that plants take up water at their roots and it affects boiling point regulates body temperature of animals. Adhesion: Attraction to other molecules called adhesion that helps in binding with different types of molecules  Surface Tension: surface tension of water is similar to the cohesion Temperature Moderation: water's heat capacity or specific heat prevent immediate temperature changes Low density of Ice: helps ice to flow on water not to immerse. Therefore life under the ice can be maintained. Universal solvent: makes water dissolve with other molecules and make a life-sustaining force that helps cells transport and use substances like oxygen or nutrients

Thus, water is essential for supporting life and survival.

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Which two are necessary for a functional ecosystem?

A. Herbivores
B. Carnivores
C. Producers
D. Decomposers

Answers

Answer:C and D

Explanation:

Answer: C & D

Explanation:

Producers start the cycle off by creating food from the energy from the sun. Then decomposers are the last on the cycle. They recycle all the leftover nutrients.

A hydrocarbon contains

Answers

Answer:

I think it's hydrogen and carbon atoms

Answer:

Hydrocarbon contains of Hydrogen and carbon atoms.

Explanation:

In the case of this molecular structure, it is exactly what it sounds like.

In mice, there are three options for fur color: black,grey and white. What type of inheritance is shown by these mice?

A. Simple
B. Co-dominance
C. Incomplete dominance
D. Sex linked inheritance

Answers

Answer:

C. Incomplete dominance

Explanation:

Incomplete dominance is a type of non-mendelian inheritance in which one allele does not completely mask the phenotypic expression of the other allele in a gene, hence, the blending of both alleles give rise to an intermediate third phenotype.

According to this question, there are three options for fur color in mice namely: black, grey and white. This is so because the alleles for black and white coloration exhibits INCOMPLETE DOMINANCE, hence, they produce a third phenotype (grey) that is a blend of both parental phenotypes.

A swimming pool holds 2,640,000 quarts of water.

How many gallons does it hold?

Answers

It would hold 660000 gallons

The job of ligase?
A. replace RNA
B. add bases
C. mend pieces together

Answers

Answer: C. mend pieces together

Explanation: Ligase is an enzyme that connects strands of DNA together in DNA replication.

Answer:

C. Mend pieces together.

Explanation:

PLEASE HELP!!!! 20 POINTS!!!!
Which event can cause slumps, landslides, and mudflows to occur?

earthquakes
hurricanes
snowfalls
thunderstorms

Answers

Answer:

earthquakes

Explanation:

Answer:

earthquakes

Explanation:

because it is muddy

If a male horse has 64 chromosomes in his body cells, how many chromosomes are in each of his sex cells?
16
32
64
128

Answers

The answer is 32! Sorry if this is wrong but I’m 99% sure

Help I need help on this one

Answers

Answer:

C. Chloroplasts

Explanation:

C is the answer hope this helps

Which feature forms at Earth’s surface from the cooling of lava

Answers

Extrusive rocks form at Earth’s surface from the cooling of lava.

What was the health of the ecosystem of Atlas National Park like before wolves were reintroduced? *WILL GIVE BRAINLIEST*

Answers

Answer:

the populations of their prey—the deer, rabbits, and so on—may increase due to a lack of at least one natural predator.

Explanation:

Wolves are causing a trophic cascade of ecological change, including helping to increase beaver populations and bring back aspen, and vegetation. Today, nearly 25 years after wolves were reintroduced into the park, the top predators have helped parts of the ecosystem bounce back. They've significantly reduced elk herds, opening the door for willow, aspen, beaver and songbird populations to recover.

The health of the ecosystem is not good due to imbalance conditions.

The health of the ecosystem of Atlas National Park is not good before the introduction of wolves because the population of herbivore such as deer increases which leads to the destruction of all vegetation present in the park as a result the park health deteriorates.

When the wolves are introduced in the ecosystem, they controls the population of herbivores i.e. deer that feeds on the grass and the recovery of vegetation that was lost due to herbivorous animals occur so we can conclude that the health of the ecosystem of Atlas National Park is not satisfactory before wolves were reintroduced in the park.

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A scientist is sent an organism from a newly discovered island. It is made up of many cells, has specialized parts, and cell walls.
Is the organism an animal? Why or why not?

Answers

Answer:

Explanation:

No it is not an animal because animals dont have cell walls plants do animals have blood cells that are roundish kinda so it is a plant organism

look at the picture for question

Answers

Answer:its the second one mate

Explanation:

7. Explain how magnetic potential energy can be transformed into kinetic energy. ​

Answers

Answer:the potential energy by the magnetic field can turn into kinetic energy once the field is moving from the S pole to the N pole when it reaches the N pole it is potential energy when it exits the S pole it is kinetic energy.

Explanation:

The magnetic potential energy can be effectively transformed into kinetic energy by that fact when it moves to the South pole of the magnet.

What is Kinetic energy?

Kinetic energy may be defined as a type of energy that is possessed due to its motion. It is characterized as the work which is required in order to accelerate a body of a given mass from rest to its stated velocity.

The potential energy in the magnet can be efficiently get stored at the north pole while when it moves to the south pole of the magnet, the energy can be transformed into kinetic energy. This type of energy is possessed by the virtue of its motion.

Therefore, the magnetic potential energy can be effectively transformed into kinetic energy by that fact when it moves to the South pole of the magnet.

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which statement about the continental drift theory is untrue ?

Answers

Answer:

your right

Explanation:

Answer:

number 4 or D

Explanation:

the plates still shift to this day

a b c d ? anyone help pls

Answers

Answer:

Nucleus

Explanation:

It is the brain of the cell and controls and regulates the activities of the cell

Last question guys pls help me

Answers

The answer is 5
Bdidksowmdo

how many codons equal one amino acid

Answers

Explanation:

hope the answer was helpful

Three codons equal one amino acid

CODON:

A codon is a nucleotide sequence consisting of three bases. The genetic code is read in a group of three nucleotide bases at a time, which are called codons.

Each codon encodes an amino acid. For example, codon AUG encodes methionine amino acid.

Each codon is read during translation to form an amino acid sequence. This means that the number of codons in a mRNA (nucleic acid) sequence determines the number of amino acids in a sequence.

Therefore, three codons equal one amino acid.

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In Flowers for Algernon, why do the doctors use Charlie in their experiment? A. They see that he has bonded with Algernon. B. They believe that he is motivated to try to learn. C. They know that he can get a better job if his skills improve. D. They realize that he is the only person who is willing to participate. Read the passage from the Bhagavad Gita.Hear from me, Long-armed Lord! the makings five Which go to every act, in Sankhya taught As necessary. First the force; and then The agent; next, the various instruments; Fourth, the especial effort; fifth, the God.Bhagavad GitaIn this sequential passage, what is the first act?forceagentmakinghearing Write in the right Definite articles , le , la , l', lesONLY DO THIS IF YOUR FLUENT IN FRENCH1. livre2. ordinateur3. table4. bureau5. cole6. fentre7. chaise8. tlvision9. tableau10. porte11. fille12. lve (female)13. copain14. carte 15. professeur Which statement best explains how the cell membrane helps a cell remove waste? A. Carbon dioxide molecules pass out of the cell through the layer of phospholipids what should I eat Honey Bunches of Oats or cup of noodles please help me fast thank you Nisha has invited a group of friends over for a spaghetti dinner. There will be eight people dining, and Nisha would like to prepare 1 1/2 cups of cooked spaghetti per person. How many 16 oz. packages of dry spaghetti must Nisha use, and in how much water should she cook the pasta?Remember, it takes 4 oz. of dry spaghetti to produce 2 cups of cooked spaghetti, and each 4 oz. of dry spaghetti requires 1 quart of water. What is the sum of:-11.5 (3.2) =Please answer what does the term "shift-sleeping" mean? If a = -9 and b = -4, what is the value of ab? What is the main conflict in this passage? Marcus wants to find the speed of a train that traveled One-half of a mile in 6 minutes. Sanjay wants to find the speed of a train that traveled 6 miles in One-half of an hour. Whose problem is best modeled by a division expression? only Marcuss only Sanjays both Marcuss and Sanjays neither Marcuss nor Sanjays The molecule Phopholipase is most likely what?- Sugar- Enzyme- Bacterium- DNA The East India Company had a strong authority over many parts of India and had a monopoly over many Indian industries and trade goods. *TrueFalse 3. Why does the order of amino acids affect the structure of a protein? i could use some help on this. thanks What was found in every Babylonian house? Wagwan ............................only answer if u wat it means There are several reasons for the variety of climates. The hottest climates are mainly found ___________________.A. outside the Tropics. B. within the Arctic circle. C. within the Antarctic circle. D. within the Tropics. What is one reason the Americans won the Mexican American war ?A. They had more familiarity with territory B. They had financial support from Spain C. They had a larger army D. They had better equipment