Chemistry Middle School

ANALYZE IT
1. What is a nebula?

2. What effect might a supernova have had on the material in a nebula that led to the creation of our solar system?

3. Does nuclear fusion combine or break apart hydrogen (H) atoms to form helium (He) atoms? Does nuclear fusion release or
absorb energy?

4. What percentage of the matter in the solar system does the sun contain? What does that statistic tell you about our sun?

5. What role did gravity play in the formation of the solar system?

Answers

Answer 1

nebula : a large cloud of gas and dust in interstellar space; a region in space where stars are born

Related Questions

Help asapppppppppppppppp

Answers

Answer:

6CO2+6H2O>C6H12O6+6O2

Explanation:

REACTANTS------PRODUCTS

Carbon 6. 6

oxygen. 6×2+6=18. 6+6×2=18

hydrogen 6×2=12. 12

Calculate the ratio of H+ ions to OH– ions at a pH = 6. Find the concentration of H+ ions to OH– ions listed in Table B of your Student Guide. Then divide the H+ concentration by the OH– concentration. Record this calculated ratio in Table A of your Student Guide.

What is the concentration of H+ ions at a pH = 6? mol/L
What is the concentration of OH– ions at a pH = 6? mol/L
What is the ratio of H+ ions to OH– ions at a pH = 6? :1

Answers

Answer:

1:1 ratio

Water (H2O) splits into Hydrogen Ions (H+) and Hydroxyl Ions (OH-). When there are equal parts of Hydrogen Ions (H+) and Hydroxyl Ions (OH-) leading to a 1:1 ratio, pH is neutral (7).

Explanation:

The concentration of H + ions at pH 6. The concentration of H + can be deduced by the formula pH = - log H + ==> H + = 10 ^ (- pH) ...

Concentration of -OH at pH 6. The concentration of -OH can be calculated from pOH: pOH = 14 - pH = 14 - 6 = 8. ...

Calculation of the ratio H + / -OH:

How do the gases in Earth's atmosphere affect Earth's average temperature?
A. They make Earth warmer by trapping heat energy in the bonds between their atoms.
B. They make Earth warmer by allowing all of the Sun's rays to travel to Earth's surface.
C. They make Earth cooler by decreasing the amount of precipitation formed in the atmosphere.
D. They make Earth cooler by allowing most of the heat from the Sun to escape back into space

Answers

the correct is answer is d

The answer is D
❤️❤️☺️✨‍♀️❤️☺️✨☺️❤️❤️☺️‍♀️‍♀️✨‍♀️✍✨❗️☺️❤️❤️✨

Name the correct name of each plate with the numbers above.

Answers

Answer:

1. Asia

2. Africa

3. Antarctica

4. Australia

5. Pacific Ocean

6. North America

7. South America

Explanation:

Answer:

Brainlest plz

Explanation:

1.Eurasian Plate

2.East African Rift or the Nubian plate

3. Antarctic Plate

4. Indo-Australian Plate

5. The Pacific Plate

6. North American Plate

7.Nazca Plate

Which is a FALSE statement about compounds?

A. Water is a common compound

B. Two or more substances chemically combined

C. All atoms in a compound are not alike

D. Made of only one kind of atom

Answers

Answer: D. Made of only one kind of atom

Explanation:A compound forms whenever two or more atoms form chemical bonds with each other.

The answer is D made of only one kind of atom

Which of the following best explains the motion of the box on the table? Image result for image box on a table

A.The box is moving downward because of the force called gravity.
B.The box is moving upward because of the force called gravity.
C.The box is not moving because the table is pushing it upward more than gravity is pulling it downward.
D.The box is not moving because the table is pushing it upward just as much as gravity is pulling it downward

Answers

Answer:

Explanation: Because gravity brings down things.

I think it's D
I'm not completely sure

A mutation occurs whenever one of the bases in DNA is changed. What letters represent those bases?

Answers

A: adenine
C: cytosine
g: guanine
t: thymine

Ok me and my brother had an argument and threw a frok at me
Saying he didnt

Answers

LOL

RIP you

uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

frog you mean? or? huh

How many molecules of the compound are there?

Answers

I believe it’s 3 molecules

There are 17 moloculesin that compound

Use the image to answer the question.

A diagram shows the process of photosynthesis. A flowering plant has arrows pointing into the plant leaves from the sun, arrows pointing into the plant leaves from the air, and arrows pointing into the plant roots from under the ground. Arrows also point away from the plant leaves into the air.

In a paragraph, answer these questions:

What is photosynthesis?
What are the inputs for photosynthesis?
What are the outputs for photosynthesis?

Answers

Answer:

1. the process of plants taking in sunlight and creating oxygen

2. outputs are oxygen

3. inputs are sunlight

Explanation:

1. the process by which green plants and some other organisms use sunlight to synthesise nutrients from carbon dioxide and water.
2. water, carbon dioxide and energy are are inputs .
3. glucose and oxygen are outputs

Water has a formula of H2O. Based on the formula which is NOT a correct statement?

A. It is an element

B. It is a compound

C. It contains oxygen

D. It contains hydrogen

Answers

Answer:

A.water is a molecule

Explanation:

water is a molecule not a element

Answer: A. It is an element.

Explanation: An element cannot be broken down into simpler substances. For example, oxygen and hydrogen are elements.
A compound is two or more elements joined by electrons. Water is a compound.
The formula for water is H2O, which can be read as “two hydrogen atoms and one oxygen atoms.” Therefore, water contains both oxygen and hydrogen.

plsss helppp ASAP
am i right?

Answers

Answer:

A because it is one big piece b is broken into 4 pieces so the answer is A

Explanation:

your answer is definitely a

The atoms in the diagram above are...
sharing pairs of valence electrons.

losing valence electrons.

transferring valence electrons.

pooling valence electrons.

Answers

pooling valance electrons

Answer:

I am pretty sure it is pooling valence electrons.

Explanation:

Losing valence electrons you would need protons and neutrons

transferring valence electrons would require something to transfer it to

so that leaves pooling valence electrons

2. List the following from least complex to most complex.
Bacterial Cell
Multicellular organism
Cell with a nucleus

Answers

Answer:

Bacterial cell, cell with a nucleus, multicellular organism

It’s bacterial cell then cell with nucleus the multicellular organism

I NEED THIS ASAP ILL GIVE BRAINLIEST

Color is everywhere in nature. The arrows in the image model the wavelengths of visible light. Compare how the incoming colors of light behave when they encounter the kittens black fur, it’s white fur, the green grass, and the yellow dandelion

Answers

The black fur absorbs all the colors where the white fun reflects all the colors because we see the green grass it absorbs all the colors except green and the yellow dandelion is reflecting yellow and orange because it’s color is like a mix of them but it still absorbs the other colors

The answer above is what I would put

HEllp no links no i dont knows and no hfdifewbhelr

Answers

Answer:

second answer

Explanation:

The melting point would occur more quickly but stay the same.

So it is answer 2

The answer is the second one

Imaging playing a game of baseball on the moon, which has less gravity than Earth and no atmosphere. How would you want to change the game to make it play fairly and fun again?

Answers

Deflate the ball so it’s not as bouncy

A technique to change the game to make it play fairly and fun again is to deflate the ball in an attempt make it less bouncy.

Discussion:

A characteristic of the baseball game is that the baseball is less bouncy in comparison to other sports like football and basketball.

When the baseball game is played on the moon with a less gravity; the ball tends to ascend more as the force of gravity is lower compared to that of the earth.

Ultimately, lowering the air pressure in the baseball makes the ball less bouncy and the game may become fun to play again.

Answers

Answer:

Explanation:

The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them. This means that the force of gravity increases with mass, but decreases with increasing distance between objects.

Answer:

Newton's law likewise expresses that the strength of gravity between any two items relies upon two factors: the majority of the articles and the distance between them. Articles with more prominent mass have a more grounded power of gravity between them.

hope this helps

The atoms in the diagram above are...

sharing pairs of valence electrons.

losing valence electrons.

transferring valence electrons.

pooling valence electrons.

Answers

Answer:he electron dot diagram is a diagram that uses dots as a symbol for an atom's valence electrons and can tell you how many bonds an atom can form. It arranges electrons as dots.

Explanation:is this it

____ is the study of a reactions progress over a period of time.

Answers

kinetic analysis is that

kinetic analysis is the answer

PLEASE HELPP FOR THE LIFE OF ME
The temperature of the areas surrounding Kochi before each storm was about 10°C and there was the same amount of water vapor in the air.

Given this information, which storm do you predict will have the most rainfall and why?

Answers

Is it about room temperature

Storm number 1 because number 2 and 4 will be snow or ice and it wouldn’t be number 3 since 1 has wind and wind helps rain because it pushes the clouds together and the clouds hit each other and release water through them as rain.

NEED THIS ASAP

Color is everywhere in nature. The arrows in the image model the wavelengths of visible light. Compare how the incoming colors of light behave when they encounter the kittens black fur, it’s white fur, the green grass, and the yellow dandelion

Answers

Answer:

The black color absorbs all colors of light, the white reflects all colors of light, the yellow-orange flowers only reflect yellow and orange light, and the green grass only reflects green light. It is because they reflect certain colors of light that these objects display certain colors.

Explanation:

Cells come from other cells.
A) False
B) Never
C) Sometimes

Answers

Answer:

C. sometimes

Explanation:

What is the rock’s velocity when it reaches the bottom? How do you know?

Answers

Thus the rock hits the surface after about 5.38 s. Thus the rock hits the surface with a velocity of about -10.01 m/s. If you want to know the velocity of the object at some point before it hits the ground, use the distance the object has fallen at that point in place of the distance to the ground in either equation.

Please help ASAP

Go around your house and hit (or tap) ten different objects. The objects should be different shapes and made of different material (choose things to hit that won’t break!). Each object is a different medium for sound. Try to hit each using the same amount of energy.

Describe each object that you hit and the sound it made.
Rank the ten objects from loudest to softest.

Make some conclusions based on your results from Steps 1 and 2. For example, are there a certain shapes or materials that are better or worse media for sound travel?

Answers

Stairs, wall, door, window, picture, floor, desk, backpack, paper, bed.

Stairs, wall, door, window, picture, floor, desk, backpack, paper, bed all of these produce different sound.

What is sound?

Sound is defined as an acoustic wave is a vibration that travels through a gas, liquid, or solid transmission medium. In terms of human physiology and psychology, sound is the brain's receipt of these waves and perception of them. A mechanical disturbance that causes an equilibrium condition to be disturbed and propagates through an elastic material medium.

The vibration of items creates sound, which travels from one place to another through a medium. Vibration is the phrase used to describe an object's to-and-fro or back-and-forth motion. Vibrations are generated by objects in motion.

Thus, stairs, wall, door, window, picture, floor, desk, backpack, paper, bed all of these produce different sound.

To learn more about sound, refer to the link below:

https://brainly.com/question/14595927

#SPJ2

Nitrogen has five valence electrons. For this reason, it often bonds to gain three electrons. Based on the arrangement of the elements in the periodic table, which other element most likely shows similar behavior ?

Select one :

A || carbon

B || oxygen

C || phosphorus

D || neon

Answers

The answer is C. Phosphorus

Answer:C phosphorus

After Michelle went on vacation for two weeks, she came home to find her potted plants had turned brown and died. The soil was very dry. While Michelle was away, she kept the curtains and windows closed and did not have a neighbor come by to water her plants. Michelle now realizes that she will have to do things differently the next time she is away for several days if she wants to keep her plants alive. Why is it important for Michelle to make sure her plants have their needs meet while she is away?

A.
She needs to make sure the plant receives water, sunlight, and air. Plants need all components to make their own food.

B.
She needs to be sure to put plant food in the pot. Plants need to be feed because they do not make their own food.

C.
She needs to add a lot of water to the pot before leaving. Plants only need moist soil to make their own food.

D.
She needs to keep the curtains open or set the plant outside. Plants only need sunlight to make their own food.

Answers

Answer:

Explanation:

The explanation lies in the answer. Plants need all components to make their own food.

Answer:

The answer is A

Explanation without one of the components life for the plants are not possible.

what is the relationship between the distance from an object and the strength of its gravity?

Answers

Answer:

the separation distance will weaken the gravitational force get weaker

Explanation:

separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

(btw sorry if this was kinda hard to understand but I hope I helped!)

please help me with this science question

Answers

Answer:

I think not 100% sure, I think its D uppermost mantle.

Answer:

Asthenpgere

Explanation:

Which of the following would have the MOST thermal energy
cup of hot soup
mug of warm coffee
bowl of cold soup
bathtub full of warm water

Answers

cup of hot soup would have the most thermal energy

Answer: Cup of Hot soup

Other Questions

Identify three things the government controls in a communist country, and give one example of a current communist country Predict the shape of the molecule..... Record the following transactions on the books of Sheridan Co. (Omit cost of goods sold entries.) (Credit account titles are automatically indented when amount is entered. Do not indent manually. Record journal entries in the order presented in the problem.) (a) On July 1, Sheridan Co. sold merchandise on account to Stacey Inc. for $21,540, terms 4/10, n/30. (b) On July 8, Stacey Inc. returned merchandise worth $2,540 to Sheridan Co. (c) On July 11, Stacey Inc. paid for the merchandise. WHO KNOWS FUNCTIONS AND ALL THAT PLZZZ HELP ME ASAP I REALLY NEED IT PLZZ General P.G.T. Beauregards biggest mistakeafter the first day of the Battle of Shiloh was...a.) failing to counterattackb.) ignoring valuable intelligencec.) rejecting reinforcementsd.) attacking the Union left flank Are the ratios 1:20 and 2:4 equivalent? essay about the role south African women play against the violation of human rights from 1950 to 1960 Calculate the area of a circle with radius 5.1cm ann and bill share an amount of money in ratio 7:n. Ann gets 28%of the money. workout value of n Robert takes out a loan for $7200 at a 4.3% rate for 2 years. What is the total paid amount at the end of the loan? A group of Washington residents has gathered petition signatures for a charter to establish a new city. What steps dothey need to take next?A. They must decide on a form of government and describe the boundaries.B. They must state the name of the city and get it approved in an election.C. They must get the petition approved in an election and by the legislature.D. They must describe the boundaries and give people a chance to opt out. If 6 pounds of grapes costs $1.89, how much would 15 pounds of grapes cost? Identify each sentence below as a independent clause or a dependent clause after months of research? what's an expression that represents 5 less than the product of 7 and a number? Someone read this and just tell me in short words about what is says.Art can be made out of anything, including ordinary things we find around us.Everyday objects that we usually throw away, such as metal cans or bits ofnewspaper, can be reused to make sculpture, jewelry, or musical instruments, forexample. Their value depends on the artists ability to see how their shape, color,material, or design can be used in a new way. Some artists even recycle images andmaterials from other peoples art, adding personal touches or altering the originalartwork to make their own statement.A patchwork quilt is sewn together from scraps, remnants, and rags. Quilters,often working together, combine these irregular bits and pieces of cloth into a newpattern. In rural America, the traditional quilting bee gave friends and neighbors achance to get together and exchange news and gossip.Public places can become art spaces. Artists on New Yorks Lower East Sidehave transformed an old gas station into a gallery, sculpture garden, and performancespace. They turn abandoned cars and other urban debris into a community work ofart that continues to grow. . . .The German artist Kurt Schwitters (18871948) used discarded objects to createa style of art he called Rubbish. Schwitters walked the streets collecting torn piecesof paper, ticket stubs, and bits of stringanything someone had thrown awayandused glue to combine them on a plain background. That kind of picture is called acollage, from the French word for paste. . . .With a little imagination, any object can be used for art. During World War II, rawmaterials of all kinds were in short supply. The famous Spanish artist Pablo Picasso(18811973) hoarded junk such as bicycle frames, mattress springs, and gardeningtools, which he made into sculptures. Bulls Head, created in 1942, is made from abicycle seat and handlebars cast in bronze.Musical instruments can be made from recyclables. American composer HarryPartch (19011974) turned large glass bottles called carboys into an enormous setof hanging gongs. Partch named his instrument the Cloud-Chamber Bowls in 1950,when he found the tops and bottoms of carboys that had been cut in a laboratory . . . .Doing some experimenting of his own, he discovered ways of striking the bowls toproduce beautiful and complex tones.Have you ever stacked stones in a huge pile or built a fort out of sticks? Thenyoure an Earth Artist. You dont need paint or paper to make art: in fact, Earth ArtistAndy Goldsworthy started out with a simple rule: he would work outside and only usematerials he could find nearby. That meant using thorns to pin dried stalks togetherand spit to paste leaves to rocks! I splashed in water, covered myself in mud, wentbarefoot, and woke with the dawn, Goldsworthy says in the book Hand to Earth. Healso got rained and snowed on a lot, sometimes on purpose! To make a rain shadow,Goldsworthy lies down on the ground when its just beginning to rain, then gets uponce hes soaked and takes a picture of the man-shaped dry spot he left behind.Home is in Scotland, but Goldsworthy has worked in the United States, France,Australia, Japan, and even at the North Pole. His finished works made of stones,sticks, leaves, ice, sand, or mud look astoundingly simple and beautiful, but theprocess can be filthy and even frustrating. The purpose isnt just to make a nice pieceof artits a way of learning about the world. In his book A Collaboration with Nature,Goldsworthy says, I stop at a place or pick up a material because I feel there issomething to be discovered. Here is where I can learn.Gluing IciclesA man with white hair, a white beard, and a Scottish accent rubs his freezinghands together before picking up a piece of icicle, dipping it in snow and then inwater, and holding it against another bit of ice. Then he waits patiently until the twopieces freeze together.Andy Goldsworthy is being filmed in action for the documentary Rivers and Tides.The curving line of ice hes working on looks as if it weaves through and around apoint of stone. If a piece of icicle doesnt fit quite right, he chews the end until it does.His hands are cold and dirty, but he cant feel the ice properly with gloves on. Itshard going and its hard on the hands. . . . All effort is going into trying to makesomething that is effortless, he says.Finally, the Sun rises and shines through the curving ice; it seems to glow. I neverhad any idea that would happen! Goldsworthy says with delight, going on to pointout that the very thing that brings the work to life is the thing that will cause itsdeath. The ice will melt in the sunlight, and the sculpture will be gone.Balancing Stones Students in George's sixth-grade class avoid him because they know his father is in prison for autotheft. This is an example of 7th grade math , not sure if I set this up correctly! For Ascomycota, what structure's function is most similar to the function of a mushroom?aAscus.bAscocarp.cAntheridium.dArchegonium.eAscospore. What is 0.5 (0.1)(1/2) need help geometry question central angles and arcs pls???