10. What changes during a chemical reaction between two compounds?
A. number of atoms
B. chemical bonds
C. total mass
D. total energy

Answers

Answer 1

Answer:

I think it's chemical bonds I'm not of that helped

Answer 2

The changes occurs in chemical bond during a chemical reaction between two compounds. The correct option is B.

What is chemical bond?

A chemical bond is a long-lasting point of attraction among atoms, ions, or molecules which then allows chemical compounds to form.

Ionic bonds are formed by the electrostatic force between oppositely charged ions, whereas covalent bonds are formed by the sharing of electrons.

A covalent bond is the strongest bond in chemistry. In such bonding, each atom shares electrons that bind them together.

The bonds that hold molecules together break apart and form new bonds during chemical reactions, rearranging atoms into different substances.

Each bond requires a different amount of energy to break or form; without this energy, the reaction cannot occur, and the reactants remain unchanged.

Thus, the correct option is B.

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Related Questions

If you have 11 neutrons and 6 protons what is the total mass?

Answers

17 because in order to find the total mass you need to add the neutron and protons together

Which activities would best target a key muscle in her cool down routine?

Answers

Answer:

The answer is "Calf stretch".

Explanation:

hope this helps!

What are the two types of biological interactions?

Answers

Answer:

Intraspecific interactions, where they are the same species, or interspecific interactions, where they are from different species.

Answer:

There are two types of biological interactions, one is harmful interactions and one is helpful interactions.

Explanation:

Which of the following is not a step in the process of natural selection

A. Individuals who have favorable traits survive and reproduce more than those individuals lacking such traits.

B. Members of a population possess heritable variations.

C. People select which individuals breed and which ones do not.

D. Over multiple generations of reproducing, a larger proportion of the population will have those favorable traits and thus adaptation has occurred.

F. The population produces more offspring than the environment can support.

Answers

Answer:

A step that is not part of natural selection is people select which individuals breed and which ones do not.

Explanation:

Natural selection is a process in which favorable or unfavorable environmental conditions determine the evolution of species, producing differences in their genotype over a long period of time.

As its name indicates, it is a natural selection, in which no intervention by people is contemplated, so that people cannot determine which individuals breed.

Natural selection implies that the characteristics on which the environment influences are inheritable, that there is genetic variability in the population and that the variability of these characteristics implies the ease of reproduction and survival capacity.

The other options do form part of natural selection, since they are based on the three premises of this process:

Inheritable characteristics. Genetic variability. The variability of characteristics influences reproduction and survival.

Plz help it’s due tomorrow

Answers

what are the directions for this assignment

10. According to Bohr's model of the atom, electrons behave like....
A. Waves on a vibrating string
B.Planets orbiting the
C.sun light energy in a vacuum​

Answers

B.Planets orbiting hiiiiii

11. An individual who is heterozygous for rob(13;14) is at increased risk for having a child affected by Patau syndrome. Please briefly explain why.

Answers

Answer:

because of Chromosome-13 rearranges with with other chromosome.

Explanation:

To understand and be and be able to solve or tackle this question effectively, there is need to know the meaning of the important terms in this question/problem.

- Robertsonian translocation: The term "Robertsonian translocation" simply refer to some kind of disorder in the chromosome in which a different kind of chromosome attach itself to another kind of chromosome, that is to say we have more than two fusion of chromosome that are different on chromosome 13, 14,15,21 and 22.

- Patau syndrome: The syndrome known as " Patau syndrome" is also refer to as Trisomy 13. The syndrome is a kind of abnormalities on the 13th chromosome known as chromosome 13. Patau syndrome patient will have more than two[usually three] kinds of chromosome.  

"An individual who is heterozygous for rob(13;14) is at increased risk for having a child affected by Patau syndrome. " is TRUE

A defect in  chromosome 13, that is to say the Robertsonian translocation on the 13th chromosome is what causes Patau syndrome. The Robertsonian translocation occurs by addition and subtraction of chromosomes, when there is addition on chromosome 13 or say the rearrangement of chromosome-13  with other chromosome, then, the individual's offspring has the tendency of developing Patau Syndrome.

Biology help pleaseeeeee

Answers

Answer:

The last 2

Explanation:

right?

Which answer best explains how most scientists think that planets form? A. Large chunks of matter break off a star that collides with another star; these chunks then become planets orbiting the star. B. Large chunks of matter break off a planet that collides with a smaller body; these chunks gradually clump together to become a new planet. C. A rotating cloud of space dust and gases begins to flatten and condense, forming a new star; the remaining matter forms an accretionary disc around the star, gradually coalescing to form planets. D. A rotating cloud of space dust and gases begins to condense, forming a protoplanet; if the protoplanet is massive enough, its gravity will attract nearby matter until the protoplanet becomes large and round enough to be considered a planet.

Answers

Answer: B

Explanation:

Thats what the teacher told me

The scientists believe that planets form when a rotating cloud of space dust and gases flattens and condenses, forming a new star; the remaining matter forms an accretionary disc around the star, gradually coalescing to form planets, as described in Option C, also known as the "nebular hypothesis."

What is the nebular hypothesis?

The nebular hypothesis is the most widely accepted scientific theory for the planetary systems, such that the solar system and, as per this theory, a cloud of gas and dust, called a nebula, collapse due to gravitational forces; the nebula contracts, and it rotates faster, flattening into a disk, which eventually cools and condenses, forming a protoplanetary disk.

Hence, the scientists believe that planets form when a rotating cloud of space dust and gases flattens and condenses, forming a new star; the remaining matter forms an accretionary disc around the star, gradually coalescing to form planets, as described in Option C, also known as the "nebular hypothesis."

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For what can we use the doppler effect to deduce in astronomy

A. the shape of orbital path of an object
B. whether the object is traveling toward or away from us
C. the Chemical composition of the objects
D. the type of spectrum the object emits​

Answers

Answer:

B

Explanation:

Whether the object is travelling toward or away from us for PLATO.

Answer:

b whether the object is traveling toward or away from us

Explanation:

i just got the answer right on the test

In the diagram of the nitrogen cycle, which number represents nitrogen
2 points
gas?
Terrestrial
cycling
Animals
68
7
Decomposition
2
Uptake
of amino
acids
ΝΗ,
4
оо

Answers

Answer:

The illustration below shows translation in progress. The orange structure represents a ribosome and the dark grey ones labelled A and

B represent 2 tRNA. Fill in the blanks in the next sentence and answer the short essay question that follows.

A

5'-AGGGACUAUGAACAUUUACCAACUACGGUGGCGUUAGAC

Explanation:

A __________________ is a place holder or object where you can store a value or piece of data named by you

One of the favorites to win a marathon to be held at sea level has been invited by a sponsor to train in Bolivia (very high altitude place) for three weeks before the race. The sponsor has promised to fly him to the race a day before the race. Based on your understanding of hemoglobin function, would you advice the athlete to accept the invitation or continue with his/her plans to train at low altitude

Answers

Answer: At high altitude the body will get prepared for marathon.

Explanation:

The human body is able to adapt the high altitude by long-term and immediate acclimatization.  At high altitude the lack of oxygen is sensed at the carotid arteries. It causes the increase in rate of breathing or hyperpnea.

In addition at high altitude the heart beats faster, gradually the body will also compensate itself for low availability of oxygen and get prepared for marathon.

Question 20 of 25

Einstein's theory of general relativity was published in 1916. It became fully

accepted by scientists in the 1960s and is currently the best explanation of

gravity. Why did it take so long to become an accepted scientific theory?

A. The scientific community requires a certain amount of time before

a theory can be accepted.

B. No scientific laws could be found to validate the theory.

C. More evidence needed to be gathered to validate the ideas in the

theory.

D. Einstein's theory was difficult for many people to understand.

SUBMIT

Answers

Answer:

D. Einstein's theory was difficult for many people to understand.

Explanation:

Einstein’s theory of general Relativity was largely Ignored for three decades because scientists at the time thought the theory was too complex compared to Newton's.

Therefore, it took long before the general science community accepted Einstein's theory of general relativity because Einstein's theory was difficult for many people to understand.

"D. Einstein's theory was difficult for many people to understand."

help please!!!!!! Most Swiss starlings produce four to five eggs in each clutch. Starlings producing more than this have reduced fitness. which of the following statements best explains this situation?

A. The starling parents do not care for their young, reducing their fitness
B. The ecosystem can only support two offspring, reducing the fitness of both populations
C. The population of starlings have limited resources to care for their young
D. The starlings have fewer habits options and fewer offspring, reducing their fitness

Answers

Answer: C

Explanation: The population of starlings have limited resources to care for their young. This is why starlings can give birth to so many. The answer is C.

Hope this helps!

Most Swiss starlings produce four to five eggs in each clutch. Starlings producing more than this have reduced fitness. The statements best explains this situation is the population of starlings have limited resources to care for their young. Thus, option C is correct.

What is Stabilizing Selection?

The term Stabilizing Selection is unlike disruptive selection (diversifying selection) that tends to favor extreme traits when changes occur, stabilizing selection is defined as changes in population genetics in which extreme traits are not favored, rather, traits that are of intermediate variants are most favored and selected for.

In the scenario given, traits of producing fewer starlings or more are extreme traits that are not favored and have reduced fitness. Intermediate variants of producing moderate number of starlings that have high fitness demonstrates the type of selection that is referred by the term called stabilizing selection.

Therefore, Most Swiss starlings produce four to five eggs in each clutch. Starlings producing more than this have reduced fitness. The statements best explains this situation is the population of starlings have limited resources to care for their young. Thus, option C is correct.

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NEXT QUESTION.
when the moon is between the earth and the sun, what moon phase will this be??
a. full moon.
b. new moon.
c. first quarter.
d. last quarter.

Answers

Answer:

New Moon

Explanation:

The new moon phase occurs when the moon is between the Sun and the Earth.

what do plant cells do?

Answers

Answer:

Create glucose

Explanation:

they go through photosynthesis and create glucose

Which of the following is the most obvious sign of cluster distribution in termites? a. They are insects. b. They are detritivores. c. They are social insects. d. Many species of termites are considered pests.

Answers

Answer:

C

Explanation:

The most obvious sign of cluster distribution in termites is they are social insects. The correct option is c.

What is cluster distribution?

In cluster sampling, a population is divided into clusters, which are smaller groups. They then choose a sample at random from these clusters. Often employed to investigate huge populations, particularly those that are extensively geographically distributed, cluster sampling is a probability sampling technique.

Termite colonies can contain anywhere between 100 and 1,000 individuals, with the larger species typically having a larger colony size. However, some termite colonies, including those with a large population, can reach millions of members.

Therefore, the correct option is c. They are social insects.

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help pleaseeeeeeeeeeeeeeeee

Answers

Answer:

D

Explanation:

How do your interactions with nonliving systems affect your environment?​

Answers

Answer:

Some examples of important nonliving things in an ecosystem are sunlight, temperature, water, air, wind, rocks, and soil. Living things grow, change, produce waste, reproduce, and die. These living things interact with the nonliving things around them such as sunlight, temperature, water, and soil.

Explanation:

Nonliving factors determine what living things can be supported in an ecosystem. The living creatures in a habitat affect the nonliving elements within the community. For example, plants can affect soil chemistry or certain algae can influence water chemistry.

The water cycle describes how water moves through the earth's crust atmosphere and
oceans. Heat from the Sun causes liquid water to evaporate from rivers, lakes and oceans
and it becomes a gas called water vapour.. As the gas rises, it condenses and
to create droplets.
Water returns to the ground as solid hail and snow or liquid rain and sinks into the earth.
Below the ground it forms
where water is held between grains in rock
layers, and
Where aquifers intersect or cut the surface of the ground
the liquid water flows out to form
and
Differences in
elements, such as oxygen, can be used to estimate the and
of
water. A process is an event or series of events that cause a change to occur.

Answers

Answer:

nose picks

Explanation:

lol

Answer:

see the answer above

Explanation:

Identify your favorite meal and explain where each of the four molecules of life can be found.

Answers

Answer:

Spaghetti.  Wheat is in the noodles and is found it a field. Tomatoes is the sauce and is grown at a farm. Cows or chicken is used for the meatballs and the are on a farm. And these all have mass, atoms, and nutrients to help your body grow and be strong.

Explanation:

If I have 12 neutrons and 11 protons what is the total atomic mass?

Answers

Answer:

23

Explanation:

Mass number is the total of the protons and neutrons together, and it is given the symbol A. Example: A sodium atom contains 11 protons and 12 neutrons; its mass number A is 23.

Answer:

23

Explanation:

atomic mass is the total of protons and neutrons therefore it's 23

QUESTION 6
Which statement is true about graded potentials?
a. They always produce action potentials.
b. They always depolarize a neuron.
c. They change the voltage of a neuron by different amounts.
od. They are "all-or-none."
Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Answers

The answer is B.I believe

Carbon is getting stuck in reservoirs (atmosphere and ocean) which is leading to climate
change. Which of the following is not a reason for this issue?
O Decrease in plants means more carbon in the atmosphere
Increase in plants means more carbon in the atmosphere
O Less organisms in the oceans prolongs decomposition trapping carbon in the ocean
O Increased use of factories and burining of fossil fuels increases amount of carbon in the
atmosphere

Answers

Answer:

Increase in plants means more carbon in the atmosphere

Explanation:

The second option is not a reason for the issue. This is because plants remove carbon from the atmosphere for their life processes.

During the process of photosynthesis, green plants manufacture their food in the presence of sunlight using water and carbon dioxide.

Plants do not trap carbon. They ensure the movement of carbon in nature. Other choices shows how carbon get trapped in the atmosphere and ocean.


TEHS 2020-2021
Section 1
3 of 103 of 10 Items



Item 3
The organelle shown consists of a stack of flattened membranes.



What is the primary function of this organelle?


attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules

long-term storage of molecules in the cell
long-term storage of molecules in the cell

production of large and small ribosomal subunits
production of large and small ribosomal subunits

repackaging proteins for export from the cell
repackaging proteins for export from the cell







TEHS 2020-2021
Section 1
3 of 103 of 10 Items



Item 3
The organelle shown consists of a stack of flattened membranes.



What is the primary function of this organelle?


attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules

long-term storage of molecules in the cell
long-term storage of molecules in the cell

production of large and small ribosomal subunits
production of large and small ribosomal subunits

repackaging proteins for export from the cell
repackaging proteins for export from the cell






TEHS 2020-2021
Section 1
3 of 103 of 10 Items



Item 3
The organelle shown consists of a stack of flattened membranes.



What is the primary function of this organelle?


attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules

long-term storage of molecules in the cell
long-term storage of molecules in the cell

production of large and small ribosomal subunits
production of large and small ribosomal subunits

repackaging proteins for export from the cell
repackaging proteins for export from the cell






What is the primary function of this organelle?


attaching amino acids to tRNA molecules
attaching amino acids to tRNA molecules

long-term storage of molecules in the cell
long-term storage of molecules in the cell

production of large and small ribosomal subunits
production of large and small ribosomal subunits

repackaging proteins for export from the cell














Answers

Question:

The organelle shown consists of a stack of flattened membranes.

What is the primary function of this organelle?

attaching amino acids to tRNA moleculeslong-term storage of molecules in the cell production of large and small ribosomal subunits repackaging proteins for export from the cell

Answer:

repackaging proteins for export from the cell

Explanation:

The organelle consisting of a stack of flattened membranes is the Golgi apparatus.

The Golgi apparatus is like the packaging centre of the cell. It modifies, sorts, and packages proteins and from the endoplasmic reticulum to be stored in the cell or released outside the cell

Which statement accurately describes the energy needs for photosynthesis and cellular respiration?

A. Solar energy is needed for cellular respiration but not for photosynthesis.

B. Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis.

C. Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.

D. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.

Answers

Answer:

D. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration.

Explanation:

It’s d hope that helped

A black bear in Washington may spend up to five months in hibernation, while a black bear in Florida may spend only four weeks. Which of the following explains why there is such a big difference in their hibernation periods?
A.Florida does not have a cold winter season, and food is available all year long.
B.The bear in Florida must feed more often than the bear in Washington.
C.There are more places to hibernate in Washington than in Florida.
D.It rains much more in Florida, and the bear cannot stay asleep.

PLZ HELP FAST.

Answers

Answer:

A

Explanation:

Bears hibernate in the cold, hibernating in the heat would be uncomfortable for the Floridian bear

With respect to proteins, the quaternary structure refers to the ​

Answers

Answer:

refers to the number and arrangement of protein subunits

what are reponsibilities only given to the executive branch​

Answers

Answer:

espero te ayude

Explanation:

El poder ejecutivo es el responsable de la gestión diaria del Estado, concibe y ejecuta políticas y leyes que tienen que ser aplicadas; representa a la nación en sus relaciones diplomáticas; sostiene a las fuerzas armadas y en ocasiones aconseja con respecto a la legislación.​ En los estados democráticos,

Why would lysosomes help a cell MORE THAN the Golgi Body? Think about the functions of the two organelles.
A.
lysosomes pack up proteins that the cells needs and transports them to different parts of the cell
B. lysosomes move throughout the cell and keeps the cell healthy by breaking down waste and toxins
Ο Ο Ο
C.
lysosomes control the activity of the rest of the cell
D. lysosomes storage water and nutrients that the cell needs in order to survive

Answers

Answer: B

Explanation:

Because A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.
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Help pls idk plssss an thank u Isabelle takes the bus to work. The bus ride to work costs her $2.50 each time. She could buy a bus pass for a one-time fee of $15.00 and would then only pay $1.00 each time to ride the bus. How many times would she have to take the bus for the cost to be the same? BRAINLIEST Multiply each side by the common denominator What is the value of the expression below when x=3 and y=8? 6x + 10y CLOSE-UP (CU) of STEVE HARMON. The fear is evident on his face. . . .O'BRIENHow are you doing?STEVEI'm scared.Monster,Walter Dean MyersWhich part of this passage is direct characterization?CLOSE-UP (CU) of STEVE HARMON.The fear is evident on his face.How are you doing?Im scared. what is (2 cubed) to the fourth power Compare the circulatory system of a plant and animal. | 1) A penny made in 1982 weighs about 0.11 ounce. Apenny made in 2013 weighs about 0.09 ounce. Whichpenny weighs more? Solve this problem any way youchoose. Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.Online Content: Site 1According to the "Cuneiform in Mesopotamia" section, how did writing develop in Sumeria over time? A shipwrecked sailor is stranded on a small desert with not fresh water to drink. He knows he could last without food up to a month, but if he didnt have water to drink he would be dead within a week. Hoping to postpone the inevitable, his thirst drove him to drink the salty seawater. He was dead in two days. Why do you think drinking seawater killed the sailor faster than not drinking any water at all? Round to the nearest whole number 7.6 Which graph shows the set of all solutions for the equation 7x + 2y = -14? (1 point) Find the explicit formula and the value of the term indicated in 45, 40, 35, 30, ...; a50 Describe who the Hessians were in your words ok so i have a art project to do but I don't quite understand it is a positive vs negative space project and I don't get it there is a example but its blocked on my school computer and I can't really find no good examples for reference so can some one send me a good example for this project plsss it would help alot School uniforms are good for the development of children. First of all, everyone is dressed similarly. If nobody has "better" clothes than others, then no one can threaten others simply because of their clothes. In many schools, ganging up on others because of what they are wearing is already normal, and uniforms are a way to protect the children from such acts. School uniforms also keep everyone from having to buy expensive brands of clothes for school, which relieves parents and takes the pressure of being "cool" away from the children. School uniforms also help children from becoming overly concerned about keeping up with the latest fashions. This gives young children more time to concentrate on important topics. In general it is possible to say, that school uniforms have a good influence on most children.What is the central idea, and key details? its the three key details boxes PLZ HELP Bill and Jerry are both taking their hot-air balloons to the balloon show.They are good friends and like to share experiences. The especially like that whenthey get to fly their balloons next to each other. Unfortunately they did not getcleared to depart at the same time. Bill got to go up first and had already startedto descend by the time that Jerry was cleared. Five seconds before Jerry takesoff Bills balloon basket was 1032 feet above the ground falling at a constant rate.Five seconds after Jerry takes off Bills basket was 985 feet above the groundand Jerrys balloon basket was 57 feet off the ground and rising at the sameconstant rate the whole time. To the nearest tenth of a second, how long afterJerrys balloon took off will the height of the two balloon baskets be the sameheight? Which is the correct awnser for these 3 awnsers? What was important about donald johansons discovery of lucy in 1974?A.It proved that hominids used tools.B it proves that hominids lived in east Africa 5,000 years ago.C It pointed to a hominids ability to walk upright.D It was the first discovery of ancient bones. When a physical or chemical change occurs, the law of conservation of mass always applies. What happens to the atoms during a chemical change, according to this law?Group of answer choicesAtoms disappearAtoms are created.Atoms are destroyed.Atoms are rearranged.