Which two types of particles exist in equal numbers in an atom? protons and electrons protons and neutrons protons and photons electrons and neutrons

Answers

Answer 1

Protons and neutrons

Related Questions

I need 2 examples of chemical and physical change. *15 points

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*Chemical: Burning of paper and log of wood. - Digestion of food. - Boiling an egg. - Chemical battery usage. - Electroplating a metal. - Baking a cake. - Milk going sour.

*Physical: An ice cube melting into water in your drink. - Freezing water to make ice cubes. - Boiling water evaporating. - Hot shower water turning to steam. - Steam from the shower condensing on a mirror.

What happens to the physical and chemical properties of elements after a bond has formed into a compound?

Answers

they will both go through a chemical change to create a new compound

Physical properties are that different colored compounds form
Chemical properties are that they require energy to form a compound

Kyla was skiing in the mountains with her family for spring break. As she was soaring down the ski slope, she tripped and fell into the snow. She took her gloves off and picked up a handful of snow.

what kind of heat transfer

Answers

i’m pretty sure it is conduction since they were in contact

The answer is conduction

_________ are often slippery substances that are used for cleaning.
A. solutions
B. solvents
C. bases
D. acids

Answers

C. Bases are often slippery substances that are used for cleaning

Bases are frequently slippery substances used for cleaning.

What is slippery substances?Slippery Liquids are known as lubricants. They are extremely important in modern technology. Parts on cars, trucks, planes, and other machinery rub against one another. These parts would heat up, deteriorate, and stop working if not lubricated.Because they have the potential to entrap liquid or gas in their micro- or nanopores, super hydrophobic, superolephobic, or omni phobic slippery surfaces are used as a repellent surface for an external liquid or solid.When subjected to flow, the external fluid slides toward the surface at the macroscale level. Superfluid liquid helium, for example, has no apparent friction! As far as I know, superfluid's are the most slick substances.

To learn more about Slippery substances refer to:

https://brainly.com/question/19871100

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A spacecraft is flying away from the moon toward earth. What will be true of the moon’s gravitational pull on the spacecraft? Will get the most brainliest

A. It will decrease
B. It will increase
C. It will repel the spacecraft
D. It will remain the same

Answers

The answer is c or a because coming down from earth can lead to fire

The answer would be A. It will decrease

What does a neutralization reaction produce?
A. Acids
B. Bases
C. water and Salt
D. carbonated water

Answers

Answer:

hope this help....

Explanation:

Neutralization is the reaction of an acid and a base, which forms water and a salt. Net ionic equations for neutralization reactions may include solid acids, solid bases, solid salts, and water.

Answer:

Explanation:

How many molecules of hydrogen (H2) and Oxygen (O2) are needed to make
eight water molecules with no leftovers?

Answers

Answer: 8 oxygen, 16 hydrogen

Explanation:

One oxygen mixed with two hydrogen makes water, which gives us the simple relation of 1:2 multiply by the variable at hand, in this case 8, which gives us 8 oxygen, 16 hydrogen

8 oxygen and 16 hydrogen

what does liquid methane and liquid water have in common?

Answers

There bonds are covalent

Physical and Chemical Changes During Digestion (7.6):
Question 2
The diagram illustrates the pathway and time frame for the digestion of a hamburger. During which time period is matter undergoing only a physical change?
Select one:

9:50 a.m. - 1:00 p.m.

6:03 p.m. - 6:06 p.m.

6:03 p.m. - 10:15 p.m.

10:15 p.m. - 9:50 a.m.

Answers

Answer:

have a nice day! you are loved!

Explanation:

Hope u figure this out!

Which situation is a result of geotropism?

A stem stem turns turns to to grow grow upward upward against against gravity.

Gravity pulls pulls down down on on all all parts parts of of a a plant.

Leaves are are supported supported on on strong strong stems.stems.

A plant plant falls falls down down when when it it wilts.wilts.

Answers

Answer:

The first one

Explanation:

Because of the growth of the parts of plants in response to the force of. gravity

Pls help!!! Will mark brainliest!!!!

Answers

Are closest together is A.
Are farthest apart C.
Vibrate is A and B
Do not vibrate is C.
Do not move to place to place is A.
Do move to place to place is B.
Move the most is C.
Becomes hot is B
Becomes hot is A

Answer:

1) A

2) C

3) B and A

4) A

5) A

6) C

7) C

8) A

9) C

maybe brainliest...? If not that's okay too.

Balance the following equation____H2 + ____O2 → ____H2O

What is the coefficient of H2?

1
2
3
4

Answers

Answer:

Explanation:

Since it has to be 2H2+02→2H20 for it to be balanced.

List three musical elements that will help you identify Jazz in the future.please

Answers

Answer:

blues, syncopation, swing

Explanation:

Can someone help me with thins, im to lazy to read rn i did freaking 47 over due homeworkkkk

Answers

smh das tough and all and same i got hella overdue

Balance each equation
1. _2__Na + ___MgF₂ _2__NaF + ___Mg

2. ___Mg + ___HCl ___MgCl₂ + ___H₂

3. ___Cl₂ + ___KI ___KCl + ___I₂

4. ___NaCl ___Na + ___Cl₂

5. ___Na + ___O₂ ___Na₂O

6. ___Na + ___HCl ___H₂ + ___NaCl

7. ___K + ___Cl₂ ___KCl

Answers

3 because it seems like the smartest answer ;)

1) is right
2)Mg+2HCL—>MgCl2 +H2
3)Cl2 +2KI—>2KCL +I2
4)2NaCl—> 2Na +Cl2
5)4Na+O2–>2Na2O
6)2Na +2HCL—>2NaCl + H2
7)2K + Cl2–>2KCL

does an object that feels cold to the touch contain thermal energy? explain your answer.

Answers

YES - explained (Temperature is an average of the kinetic energy isn't it? Thermal energy is the total. So you could have a really big "cold" object and it would have more energy then say a small "hot" object. But the average energy of the hot object would be greater than the average of the cold object. "You only need to know the amount of thermal energy a body contains to calculate its temperature" -You need to know something about the size of the objects and the particles that made it up? "The object contains less thermal energy than your hand" -It could be a large cold object, so it could have a greater amount of energy but over a larger area, so it's just the temperature that is lower. I've only studied thermodynamics a little, but I think that's sorta right...)

An an object that feels cold to the touch contain thermal energy is true.

What is heat flow?

Flow of heat takes place when from the hotter body to the colder body in order to attain the equilirium.

When an object feels cold after touching any cold material means that object contains the thermal energy and by touching that material heat or thermal energy transfer from the object to the cold material. If the ocject itself is cold or does not having thermal energy then in this condition they will not feels cold.

Hence given statement is true.

To know more about heat flow, visit the below link:

https://brainly.com/question/16055406

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what force is needed to give a 4.5 kg bowling ball an excelleration of 9 m/s2?

0.5 N

2 N

36.5 N

40.5 N

Answers

It’s the last one my g

Your friend claims that weather predictions are just guesses. What would you say to change your friend's mind? Include at least two pieces of evidence that weather predictions are scientific. Use complete sentences.

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If my friend was to say that I would say that the prediction are scientifically drawn. They look at the current state of the atmosphere. They also make educated guesses regarding previous weather patterns in that given area.

How can scientists use their knowledge of chemical reactions?

Answers

Answer: Scientists use chemical equations to summarize what happens in chemical reactions. In chemical equations, reactants and products are represented by chemical symbols and formulas. Numbers called coefficients are placed in front of the symbols and formulas to show how much of each substance is involved in the reaction.

Explanation:

Answer:

Scientists use chemical equations to summarize what happens in chemical reactions. Reactants are placed on the left side of the equation and products are placed on the right.

Explanation:

i have no idea what I'm supposed to do but apparently you need to use table D for table E, i will give brainly to someone if they actually help me :)

Answers

Explanation:

It most likely telling you how to work it out and try to find the key word, if not try to see how much each percent is, and you can try and break it up a little. (I hope that helped you out)

The person above me is correct

Answers

Answer:

I would tell them to mind their business

During photosynthesis, plants take in carbon dioxide and release oxygen. During respiration, animals take in oxygen and release carbon dioxide. This is a cycle because:

Answers

Answer:

It is being repeated and its not stopping

Answer:

events can be predicted

Explanation:

I do Calvert school and for some reason I don't have that answer, but I just got the answer its up above.

standing still; not moving

1.stationary
2.motion
3.universal law of gravitation

Answers

Answer:

stationary stationary means not in motion also known as not moving

Stationary means still

HELP ME!!
How many people prefer pepperoni or tomato as a topping?

Answers

Answer:

375

Explanation:

325 + 50 = 375

just add them together and you get 375

answer: 375

I think all you do is add the pepperoni and tomato together, and you’re done! :D

HELPPPPPPPPPPPPPPPPPP

Identify factors that influence the strength of gravity between two objects.

Answers

Answer:

distance between them , and mass of the objects

Explanation:

the further away a object is the weaker the gyrational pull is, and imagine lifting a anvil above your head, the anvil weight push's down upon you pulling.

The mass and the distance :)

Explain how a drought poses a threat to life and the biosphere. Use complete sentences.

Answers

Answer:

A drought poses a threat to the biospere because biospere/life needs water to live, which a drought is a period of time with little or no water. This also poses a threat to the biospere because a drought is very hot and can cause heat exhaustion.

Explanation:

NEED HELP PLEASE
WILL GIVE BRAIN

Answers

Answer:

the answer is 0.15

Explanation:

I WILL GIVE BRAINLYEST

Answers

Answer:

claim:

The outcome of the tug of war game results in the dogs getting stronger and more motivated.

evidence:

Tug-of-war is a fun game for the dogs. Playing it strengthens the connection

between the dogs . Tug of war helps the dogs exercise.

reasoning:

Since it is a fun game, dogs will be motivated to go out and play it. Then the two dogs will become friends and get even more motivated to go out because their new friend is outside. This will result in them playing tug of war often and they will get stronger when they play longer.

Is a saphire a diamond or a gemstone?

Answers

it is a gemstone

Explanation:

A sapphire is a gemstone

PLEASE HELP ME!!! I WILL GIVE BRAINLIEST!!

Answers

greatest is at W because kendrick is still and it’s at the highest point.. x has greatest gravitational because it’s closest to the ground.. potential energy is at Z because it’s going straight so it’s stil moving

1. The roller coaster will have the most kinetic energy at point X because the roller coaster is moving at a fast speed.

2. At point W the roller coaster will have the greatest amount of gravitational energy because it’s at the highest point of the roller coaster.

3. Kinetic energy is present at point Z because the coaster is moving.

SORRY IF I DID IT LATE

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a solar lease customer built up an excess of 6,500 kilowatts hour (kwh) during the summer using his solar panels. when he turned his electric heat on, the excess be used up at 50 kilowatts hours per day Was metacomet a native american leader? 3. If the whistle has a sound intensity of 90 dB when the boat passes you 7 m away, how loud (in dB) is it in the cockpit just 1 m from the whistle Jordan works for a landscape company during his summer vacation. He is paid $12 per hour for mowing lawns and $14 per hour for planting gardens. He can work a maximum of 40 hours per week, and would like to earn at least $250 this week. If m represents the number of hours mowing lawns and g represents the number of hours planting gardens, which system of inequalities could be used to represent the given conditions? * Which undefined term can contain parallel lines Read this excerpt:Sophocles long agoHeard it on the Aegean, and it broughtInto his mind the turbid ebb and flowOf human misery; weFind alsh in the sound a thought,Hearing it by this distant northern sea.-Matthew Arnold, "Dover Beach"What is Arnold comparing to "human misery" in this excerpt from "DoverBeach"? Could someone please tell me the answer of this.Thanks . Lines 73-82 how does the description of the events of eight months ago add to soueif'a description of the present? 4 = 8 Y=.162) Dylan loves cookies and always takes them from the cookie jar when his mom isn't looking. The cookie jarstarts with 64 cookies in it. If Dylan takes half of the cookies every day, how many cookies are left after 5 days? Read the sentence from paragraph 5 of the speech."The white men do not scalp the head; but they do worse--they poison the heart, it is not pure with them."What does Black Hawk mean by this?A The white men corrupt the nature of a person.The white men corrupt the nature of a person.B The white men have a much less violent nature.The white men have a much less violent nature.C The Native Americans will get revenge eventually.The Native Americans will get revenge eventually.D The Native Americans model behavior after the white men.Which detail from the speech best supports the answer to Part A?A "But the Indian does not tell lies; Indians do not steal." (paragraph 2)"But the Indian does not tell lies; Indians do not steal." (paragraph 2)B "The white men despise the Indians, and drive them from their homes." (paragraph 2)"The white men despise the Indians, and drive them from their homes." (paragraph 2)C "We were becoming like them, hypocrites and liars..." (paragraph 3)"We were becoming like them, hypocrites and liars..." (paragraph 3)D "...great council gave us fair words and big promises, but we got no satisfaction." (paragraph 4) what is the remainder of X^3-1 when divided by (x+2)? 10. Select the best answer.Which statement is NOT a criticism of judicial review?A. IF unchecked, it may lead to judicial activism.B. It tends to favor wealthier Americans in judicial decisions.C. It places the judiciary in a position of power over the other branches in that it makes the judicial will supreme to the will of thepeople.D. It is viewed as limiting the democratic process by negating the constitutional principle of majority rule. To help prevent su icide you can: (4 points) a: trample feelings by telling someone they shouldn't feel that way. b: solve their problems. c: listen to them, use active listening skills so they feel understood. d: convince them they're being irrational. how many funtamental right are mentioned in our consitituon Select the step in the solution that FIRST shows an error.Step 1: 4x 10 = 10Step 2: 4x = 20Step 3: 4x = 5Step 4: X = 1.25 Simplify expression 7(x-2) Solve for E: E=mc^2m = 3c = 6 Write a decimal number for each word name. 1 nine thousand, six hundred five and nine tenths Please answer need help Based on the excerpt, which statement best describes the authors attitude toward Alexander Graham Bell? The author greatly dislikes Bell for taking credit for the invention of the telephone. The author feels pity for Bell because he is not the real inventor of the telephone. The author celebrates Bell even though he gives him only partial credit for the telephone. The author feels it is important to show that Bell was not the true inventor of the telephone.