Chemistry Middle School

Help RRLY EASY I JUST DONT UNDERSTAND

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Answer 1

Answer:

boomer

Explanation:

Related Questions

Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)

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Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

the length of a piece of metal that has a melting point of 400 °C. At 20 °C, the metal is 2.3 cm long. The scientist heats the metal to 125 °C. Which of the following is the most likely length of the metal at 125 °C plz answer soon. i really need help :(

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It will be 8in good luck

Which of these phrases would go in the overlap? Select two options.

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I think it’s found in the nucleus and has a mass of one amu

Yes they are correct

Can some one help? And also explain it? The question is how titan in Saturn evaporated I’m just confused by this question I just don’t know what to write as a response…. Help?!?

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they evaporated by coming to close to the inner pole of our integrated solar system

Certainly! I can help you with that question and explain it.

The process of how Titan's atmosphere evaporated is an interesting one. Titan is the largest moon of Saturn and has a thick atmosphere primarily composed of nitrogen, similar to Earth's atmosphere. The evaporation of Titan's atmosphere is related to its surface temperature, atmospheric pressure, and the composition of its atmosphere.

Here's a simplified explanation of how Titan's atmosphere can evaporate:

1. Surface Temperature: Titan is a very cold moon with surface temperatures averaging around -290 degrees Fahrenheit (-179 degrees Celsius). At such low temperatures, some of the gases in the atmosphere, like methane and ethane, exist in liquid form on the surface.

2. Atmospheric Pressure: Despite being cold, Titan's atmosphere is relatively dense, with a surface pressure about 50% higher than Earth's. This atmospheric pressure helps keep the gases in the atmosphere from escaping into space easily.

3. Evaporation: Even at such low temperatures, some of the liquid hydrocarbons on Titan's surface can evaporate and become gases in the atmosphere. This process is similar to how water evaporates from Earth's oceans and lakes, despite not reaching boiling temperatures.

4. Condensation: Conversely, when the gases in Titan's atmosphere lose energy, they can condense and return to the surface as liquid. This is similar to how water vapor in Earth's atmosphere condenses to form clouds and eventually falls as rain.

Overall, the balance between evaporation and condensation in Titan's atmosphere is influenced by its temperature, atmospheric pressure, and the composition of its atmosphere. The low temperatures and high atmospheric pressure allow for the existence of liquid hydrocarbons on the surface and their occasional evaporation into the atmosphere.

I hope this explanation helps you understand how Titan's atmosphere can evaporate despite being a cold moon. If you have any further questions or need more clarification, feel free to ask!

what is the compound of p2o5

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Answer:

Phosphorus pentoxide is a chemical compound with molecular formula P4O5 (with its common name derived from its empirical formula, P4O5). This white crystalline solid is the anhydride of phosphoric acid. It is a powerful dessicant and dehydrating agent.

Explanation:

it would be phosphoric acid.

Chemical Weathering Rocks are changed by chemical and physical weathering. During chemical weathering, the composition of the rock is changed. Extreme heat and pressure within Earth can also cause rocks to change chemically. Physical weathering is the breaking down of rock by wind, water, ice, temperature change, and plants. It changes the shape and size of rocks, but it does not change their properties.

circle each example of chemical weathering

•Shale is worn into small pieces by the wind.
• Sandstone experiences heat and pressure and becomes quartzite.
• Calcium carbonate dissolves.
• Rocks break into pieces as they tumble down a mountain.

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An example of chemical weathering are;

Sandstone experiences heat and pressure and becomes quartzite. Calcium carbonate dissolves.

What is Chemical Weathering ?

Chemical Weathering can be described as the type of weathering that do take place due to the breaking down of the rock particles into smaller pieces which is usually as a result of chemical process.

It should be noted that when the process is taking place it scould be due to the Extreme heat and pressure which can affect the composition of the particles and as a result of this there could be formation of products from the break down.

Learn more about Chemical Weathering at:

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The two examples of chemical weathering in these 4 options are
Sandstone experiences heat and pressure and becomes quartzite
Calcium carbonate dissolves
These are both examples of chemical weathering because the composition of these things changed. When shale is worn into small pieces, it is still shale, and rocks breaking into pieces as they tumble down a mountain are both examples of physical weathering because the weathering is not changing the composition of the rock.

1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL

Answers

To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

the correct answer is A 4.8 mL

Using PEP or PrEP can reduce the chances of becoming infected for a person exposed to HIV.
TRUE OR FALSE

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Answer:

trueeee

Explanation:

True i hope this helps

The image shows the gravitational effects of the moon (not shown) on the Earth (depicted here) and the resulting tides that form. Which statements are true about the gravitational force between the Earth and the moon? Select ALL that apply.
Responses
A The moon exerts equal gravitational force on all locations of the Earth
B The moon exerts a smaller gravitational force on Earth locations that are farther away
C The moon must be to the right of the Earth because gravity is an attractive force.
D The moon must be to the left of the Earth because gravity is a repulsive force.
E The moon exerts a greater gravitational force on the Earth than the sun does.

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Answer: B

Explanation:

Brainliest please! (if im right)

The answer is B The moon exerts a smaller gravitational force on Earth locations that are farther away

What is necessary for a metallic bond to form?

A) The atoms should be in close proximity.

B) The atoms should be far apart.

C) The electrons must be attracted to each other.

D) The nuclei must contain neutrons.

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C thats the answer yes

Is this statement true or false?
The word planet comes from the Greek word planetai, which means wanderer because the ancient Greeks thought of the planets as wandering through the stars.

True

False
btw this is a science question

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True.
I’m at k12 student

Answer: True

Explanation:

Asteres planetoid, or 'wandering stars,' was the term used by Greek astronomers to describe star-like objects that appeared to move across the sky.

The term has been applied to a wide range of objects, including the moon, satellites, the sun, and asteroids.

A planet, according to the International Astronomical Union (IAU), is a body that orbits the Sun, is massive enough for its own gravity to keep it around, and has 'cleared its neighborhood' of smaller objects approaching its orbit.

no link need right answer

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Answer:

cutting down the rainforest destroys the habitat for a number of species

Explanation:

please mark this answer as brainlest

D. no guaranteed....

Which of the following shows the correct sequence of the Cell Cycle?

Prophase, Metaphase, Telophase, Cytokinesis, Interphase, Anaphase

Interphase, Cytokinesis, Prophase, Metaphase, Anaphase, Telophase

Cytokinesis, Interphase, Prophase, Telophase, Metaphase, Interphase

Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

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Interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis are the proper phases of the cell cycle. The series of actions that take place between the development of a mother cell and the production of two daughter cells is known as the cell cycle.

Interphase and cell division are the two main stages. The phase of the cell cycle known as interphase is when the cell develops and gets ready to divide. The initial stage of cell division, known as prophase, occurs when the nuclear envelope separates and the chromosomes condense.

The second stage of cell division, known as metaphase, is when the chromosomes align in the centre of the cell. The third stage of cell division, known as anaphase, is when the chromosomes split and migrate to the opposing poles of the cell.

Learn more about chromosomes at:

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Please Help will mark brainliest
1._____ rocks contain a variety of different rock particles that are cemented together.
2._____ rocks are formed when rocks are changed by heat and pressure.
3. When volcanoes erupt,_____ rocks are typically formed.

Answer choices
1. igneous, sedimentary, metamorphic
2. igneous, sedimentary, metamorphic
3. igneous, sedimentary, metamorphic

Answers

Answer
1. sedimentary
2. metamorphic
3. igneous

hope this helps and have a wonderful day :)

Answer:

igneous

Explanation:

Michael wants to know how different temperatures affect the growth rate of a bean plant. To make sure he has accurate and valid results he uses the same species of plants, amount of water, soil and pots. He observes the growth over a period of five days.

What is the test/independent variable in this investigation?

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Answer:

This is the biology Study Island Scientific Investigations with all of the ... Tap again to see term ... She is planning on exposing frogs of the same species to different amounts of the ... Tyler wants to know how the growth of tomato plants is affected by the ... He hypothesizes that the plants will grow best in sandy soils.

Explanation:

Answer:

Explanation:

you always need all of them to be equal for it to ACTUALLY make sense.

hope this helped!!!

Can you please help me

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answer:

The first in the row is correct

The correct answer is c I hope this helped you

Identify which of the following descriptions of a tree is quantitative?

Question 1 options:

(A) has greenish-gray leaves

(B)has leaves that are 8-10 cm long

(C)has rough, scaly bark

(D)grows well in damp soil

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Answer:

b) has leaves that are 8 -10 cm long

b-has leaves that are 8-10 cm long

Award is 100 Points for the First Correct Answer!

Question:
which has more calories : table sugar or aspartame ?

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Table sugar has more calories than aspartame.

Table sugar, also known as sucrose, contains 4 calories per gram, whereas aspartame contains only 0.2 calories per gram. This makes table sugar much higher in calories than aspartame.

Answer:

Table sugar has more calories than aspartame. A teaspoon of table sugar (4 grams) contains approximately 16 calories, while a teaspoon of aspartame (0.5 grams) contains only 0.4 calories. This is because table sugar is a carbohydrate and contains four calories per gram, while aspartame is a non-nutritive sweetener and is virtually calorie-free.

Which process is most responsible for leaving salt molecules in ocean water?

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desalination is the answer

What was one was one important impact of Supreme Court's ruling in Bush v. Gore

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Answer: the answer is b or c

Explanation:

I took it

The answer is C, i took that test before and got it right

Which statement best describes properties of elements? A) All elements have a similar structure and hardness. B) All elements are either metals or gases. C) All elements are solid and magnetic. D) All elements have mass and occupy space

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Answer:

Explanation:

That is the right answer

What is the average thermal energy of ice?

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Answer:Ice doesn’t have a thermal energy.

Explanation:

The struggle for existence against other members of an organisms species is
gene flow

genetic drift

Natural Selection

Competition

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It is Natural selection

It is a natural selection

Do you think a moving skateboard has energy? Why or why not?
PLEASEEEEEE HURRY

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Answer:

"Yes," a moving skateboard has energy.

When the skater seems to be in motion or throughout a movement, the potential energy converts itself into the kinetic form of energy, and then it becomes potential energy again.

Furthermore, somewhere after every movement, the same skateboarder was around a similar height, — in other words thus every time it is equally powerful.

The response is thus the right one.

Explanation:

Yes, every object in motion has energy.

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

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Answer:

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

HELP DUE TODAYYYYYYYYYYYYYYYY

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what he did wrong was he put the plant in the closet, plants need sun

Plant in the closet is bad for the plant as what spongebob did. It need energy from the sun. The plant needs to be outside.

describe the role of oceans in the water cycle?

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Answer: The ocean plays a key role in this vital cycle of water. The ocean holds 97% of the total water on the planet; 78% of global precipitation occurs over the ocean, and it is the source of 86% of global evaporation. ... Water evaporates from the surface of the ocean, mostly in warm, cloud-free subtropical seas.

Explanation:

Hope this helps!

They are basically a heat sink for our planet, will soon to be a place for commercial grade mining, literally absorbs most of our carbon.
Those are some of the thing I can just think of from my aice marine class I’m sure there’s more I hope this helps.

What does an increase or decrease in temperature tell you about the thermal energy of an object?

im not the best at science, need some help on this question.

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Answer:

When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.

Explanation:

I hope this helps

Please help with questions 11-13! I’ll give brainliest

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Answer:
11- 3
12- 4
13- 2

Answer:
11- 3
12- 4
13- 2 hope this helps

Drag the tiles to the correct boxes to complete the pairs.
Match the descriptions to the processes.

Answers

Answer:

put up a picture

Explanation:

so someone can see it and solve it

Other Questions

A football team must move the ball forward at least 10 yards from its starting point to make a first down if the team has 2 losses of 2 yards each and a gain of 12 yards does the tean make a first touchdown justify your answer Please help me understand how to do this Thanks for the helpReally appreciate it Find the missing side length PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!!The function f(x) = 1,250(1 + )4t models the balance in a savings account. Which statement accurately describes the account?A. The account had an initial balance of $1,250 and compounds monthly at an interest rate of 0.1%.B. The account had an initial balance of $1,250 and compounds quarterly at an interest rate of 12%.C. The account had an initial balance of $1,250 and compounds monthly at an interest rate of 4%.D. The account had an initial balance of $1,250 and compounds quarterly at an interest rate of 1.2%. What are the motives of Animal Farm? A circle has a diameter of 24 in what is the circumference pi is 3.14 If you wanted to know the symbol for a mountain, where on a map would you look?A scaleB compassC legendD title Does Buddhism support democracy? In the 1950s, social scientists contributed to the redesign of prisons and also _____. suggested that hypnosis be used on prisoners Created prisons without walls began providing therapy and counseling to reform inmates became prison guards Which of the following are challenges facing direct marketers in global markets today?1. Countries with less reliable and secure mail systems.2. Countries with mandatory "opt-in" requirements.3. Lack of credit and credit cards in different parts of the world. Is being persistent a beneficial for a person? Explain The difference between accuracy and precision is precision reflects how close a measurement is to a the accepted value while accuracy reflects how reproducible measurements are precision reflects range of measurements relative to the accepted value while accuracy reflects the true value accuracy reflects how close a measurement is to a the accepted value while precision reflects how reproducible measurements are accuracy reflects range of measurements relative to the accepted value while precision shows outliers relative to the true value What are the disadvantages of human capital approach in impactvaluation in CBA ? Explain ONE possible non-financial aim an entrepreneur may have when starting asmall business What value of X is alwaysan outlier?A) X> Q1 + 1.5 IQRB) X>03 - 1.5 IQRC)XD) X > 1.5 IQR - Q1E) X > Q3 +1.5 IQR Digital photography replacing film photography would be an example of a(n) _____. Group of answer choices radical innovation regressive innovation disruptive innovation architectural innovation Following are selected accounts for Green Corporation and Vega Company as of December 31, 2023. Several of Green's accounts have been omitted. Green Vega Revenues $ 900,000 $ 500,000 Cost of goods sold 360,000 200,000 Depreciation expense 140,000 40,000 Other expenses 100,000 60,000 Equity in Vegas income ? Retained earnings, 1/1/2023 1,350,000 1,200,000 Dividends 195,000 80,000 Current assets 300,000 1,380,000 Land 450,000 180,000 Building (net) 750,000 280,000 Equipment (net) 300,000 500,000 Liabilities 600,000 620,000 Common stock 450,000 80,000 Additional paid-in capital 75,000 320,000 Green acquired 100% of Vega on January 1, 2019, by issuing 10,500 shares of its $10 par value common stock with a fair value of $95 per share. On January 1, 2019, Vega's land was undervalued by $40,000, its buildings were overvalued by $30,000, and equipment was undervalued by $80,000. The buildings have a 20-year life and the equipment has a 10-year life. $50,000 was attributed to an unrecorded trademark with a 16-year remaining life. There was no goodwill associated with this investment. Compute the December 31, 2023, consolidated common stock. 135 rational or irrational Question 20Which one of the following principles is consistent with the Universal Declaration of Human Rights?Different sets of fundamental rights and privileges apply in different culturesPeople do not have a right to join trade unions for the protection of their interestsIt is ethical to treat people as means to the ends of othersCitizens of a nation have no duties to their communityIt is unethical to employ child labor sweatshops even if that happens to be common in some countries