Nancy dumps a mixture of salt, iron filings, and wood shavings into a beaker of water and stirs for 60 seconds. Predict the appearance after she stops stirring and allows the mixture to settle.

Answers

Answer 1

Answer:

When the mixture settles, there will be no visible salt, but she will see the iron shavings at the bottom of the beaker and the woodchips floating.

Explanation:

The salt will dissolve, the iron shavings will sink and the wood chips will float because they're less dense.

Answer 2
The iron filings, and wood shavings will still be visible, and settled at the bottom; and the salt will not be able to be seen anymore, because it would have already dissolved into the water. Please mark if its correct :)

Related Questions

Which of the following is NOT true about analog signals?

A) Continuous stream of information and the wave looks like this:
B) Carries noise which creates a lower quality signal.
C) Information is converted to numbers (digits) which is a code for on and off. More reliable and stored easily.
D) Can degrade over time and distance.

Answers

Answer:   Noise is more easily filtered from digital signals.

Explanation:

Answer: A) Continuous stream of information and the wave looks like this, is incorrect.

Explanation:

A, B, and C are all correct, which leaves A.

what is the relationship between convince and suspect?

Answers

The relationship between "convince" and "suspect" is that they are opposites.
To convince someone means to persuade them to believe or do something. This involves gaining their trust and making them feel confident in your argument or proposal.
On the other hand, to suspect someone means to have doubts or distrust about their motives or actions. This involves questioning their credibility and being cautious about their intentions.
So, while convincing involves building trust and confidence, suspecting involves the opposite - doubting and being cautious.
convince is to make someone believe, or feel sure about something, especially by using logic, argument or evidence while suspect is to imagine or suppose (something) to be true, or to exist, without proof.

Which statement about the movement of the sun and stars is correct?(1 point)
Responses

They move from east to west across the sky each day.
They move from east to west across the sky each day.

They move from south to north across the sky each day.
They move from south to north across the sky each day.

They move from north to south across the sky each day.
They move from north to south across the sky each day.

They move from west to east across the sky each day.
They move from west to east across the sky each day. this is science btw

Answers

Answer: East to West

Explanation:

they move from east to west across the sky each day.

The following exothermic reaction is allowed to reach equilibrium. What
happens when the reaction temperature is decreased? (think about what
side heat would be on in an exothermic reaction)
2 H, + 02 → 2H2O
O Favors the forward reaction
O Favors the reverse reaction
O The reaction is still at equilibrium

Answers

The answer is gonna be the last one :)

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

Answers

Answer:

39

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

If a metal object and a plastic object are both at the same cold temperature and you pick them up which one will feel colder in your hand? In one or two sentences, explain why.

Answers

Explanation:

Even though metals conduct heat faster than plastics, experiments suggest that liquids in metal containers stay cold about as long as they do in opaque or semi-transparent plastic ones.

Metal because metal is a good thermal conductor

Can somebody help me with this, please? Please Asap

Can somebody help me with this, please? Please Asap

Answers

Answer:

im not sure what exactly you want? if its answering the questions then search up each one and rephrase the answers you get, for instance for mitochondria is the powerhouse of the cell. just write something simple thats what i did when i had to do something like this it took only a couple of minutes

Explanation:

The Organelles help the cell to function efficiently.

What are the organelles in the cell?

I can see that your question has to do with the organelles in the cell but I don't quite get the analogies that you intend to use. However, I would explain the organelles one after the other.

Endoplasmic reticulum: The endoplasmic reticulum (ER) is a network of membranous tubes and sacs within the cytoplasm of eukaryotic cells. It serves as a transport system for proteins and lipids, as well as a site for folding and modification of newly synthesized proteins.

Ribosomes: Ribosomes are complex molecular machines that are found in the cytoplasm of all living cells. They are responsible for synthesizing proteins from amino acids, which are the building blocks of proteins.

Mitochondria: These are organelles found in the cytoplasm of eukaryotic cells. They are often referred to as the "powerhouses" of the cell because they are responsible for producing most of the cell's energy in the form of ATP (adenosine triphosphate).

Vacuole: Vacuoles are membrane-bound organelles found in eukaryotic cells. They are large, fluid-filled compartments that serve several important functions within the cell, including storage of nutrients and waste, regulation of the cell's water balance, and maintenance of cell shape.

Cytoplasm: Cytoplasm is the gel-like substance that fills the interior of eukaryotic cells, excluding the nucleus. It is a complex mixture of water, ions, organic molecules, and a variety of cellular structures, including organelles such as mitochondria, ribosomes, endoplasmic reticulum, and lysosomes.

Lysosomes :Lysosomes are membrane-bound organelles found in eukaryotic cells. They are referred to as the "garbage trucks" of the cell because they are responsible for breaking down and recycling cellular waste and unwanted material.

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Explain the correlation between chemical properties and chemical changes. (plz i not sure on the answer so it would mean a lot if you could help me.)

Answers

Answer:

Explanation:

A chemical property describes the ability of a substance to undergo a specific chemical change.

A chemical reaction is a process that occurs when one or more substances are changed into one or more new substances.

Differences

Chemical properties are properties that can be observed or measured when a substance undergoes a chemical change.

Physical properties are properties that can be observed without bringing a chemical change.

Another one

chemical properties; can be used to predict how substances react.

chemical changes; It is mostly used in identifying or describing the substance.

A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.[1] Simply speaking, chemical properties cannot be determined just by viewing or touching the substance; the substance's internal structure must be affected greatly for its chemical properties to be investigated. When a substance goes under a chemical reaction, the properties will change drastically, resulting in chemical change.


Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

hope this helps!

Which of sully's traits are

Answers

yes, their traits are

and

sometimes

Need more information

Explain how the design of a two-tier ditch helps control farm pollution.

Answers

Answer:

Plants and soil microbes at that level help trap soils and catch nutrients, such as phosphorus and nitrate. The design also slows water flow under most conditions Compared to a trapezoidal ditch upstream, the two-stage ditch has clearer water flowing out. That means less soil is flowing away.

Explanation:

brainliest pls

Plants and soil microbes at that level help trap soils and catch nutrients, such as phosphorus and nitrate. The design also slows water flow under most conditions. ... Compared to a trapezoidal ditch upstream, the two-stage ditch has clearer water flowing out. That means less soil is flowing away.

Candice did an experiment where wondered if temperature affects how cheese molds. She put a piece of cheese next to a different heat lamp and then measured how much mold was on each cheese. What is the DEPENDENT variable?

Answers

How much the cheese molds. Since it depends on the heat lamp.

please help me I would apprecitated

please help me I would apprecitated

Answers

Answer
1.5 miles per hour

hope this helps and have a wonderful day :)
1.5 miles per hour. please give me the brainliest. have a great day!! :)

The general formula for
Compound + Compound
----->
Compound + Compound
A. Synthesis Reactions
B .Double Replacement Reactions

Answers

Answer:

single replacement

Explanation:

If it has one plus sign it is decomposition or synthesis

however if it has two plus signs then it is single or double replacement

it is a synthesis reactions

True or False: Organic substances are always made from the same four elements including carbon, hydrogen, oxygen, and nitrogen.
FALSE
TRUE

Answers

Answer:

Four elements, hydrogen, carbon, oxygen and nitrogen, are the major components of most organic compounds.

Answer:

true

Explanation:

True or False

Low, gray, layered clouds that cover the sky and bring steady rain are nimbostratus clouds.

Answers

Answer:

true

Explanation:

it indicates a steady rain therefore true

true because no other cloud has that kind of experience

Describe the chemical reaction based on the chemical equation below. Also, explain whether the equation is balanced.

Answers

I don't see any chemical Equation

(Mark as Brainiest)

Answer:u dont have no picture ofbit u need to show us whst it is

Explanation:

Ong ohoje is glitch ant type hate when it do thsi

Oil is a powerful source of energy used for cars, machines, and many other purposes. While studying sources of energy that could replace the use of oil, a student thinks about solar power, wind power, nuclear power, and electric batteries. The students asks,"Which type of source will waste the least energy and provide the most energy in all situations?"

Which best describes why a scientist would ask a different question than this one?

O The question asks about subjective personal preferences regarding energy.
O The question focuses on the objective measurements of amounts of energy.
O The question has too wide of a focus, as though all situations can be studied at once.
O The question is focused on the future and finding new answers about changing needs.

Answers

Answer:

C

Explanation:

scientists usually focus on one specific problem, rather than a whole range. so the answer would be that it's too wide a focus.

btw this is where the crown is on the bottom of the question

Oil is a powerful source of energy used for cars, machines, and many other purposes. While studying sources

Answer:

c

Explanation:

In 3 paragraphs, describe how weathering changes the earth's surface. Please do not copy and paste.

Answers

Answer:

Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time.

The effects of weathering disintegrate and alter mineral and rocks near or at the earth's surface. This shapes the earth's surface through such processes as wind and rain erosion or cracks caused by freezing and thawing. Each process has a distinct effect on rocks and minerals. Mechanical weathering increases the rate of chemical weathering. As rock breaks into smaller pieces, the surface area of the pieces increases Figure below. With more surfaces exposed, there are more surfaces on which chemical weathering can occur. Mechanical weathering may increase the rate of chemical weathering.

Weathering, erosion, and deposition are processes that act together to wear down and build up the Earth's surface. These processes have occurred over billions of years. Weathering is any process that breaks down rocks and creates sediments. Weathering causes the disintegration of rock near the surface of the earth. Plant and animal life, atmosphere and water are the major causes of weathering. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice.

What is an ellipse please help)

Answers

normal oval shape traced by a point moving in a plane so that the sum of the distance from the other points is constant.

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.

if i have 17 apples and i eat 17 apples how many pears do i have?

Answers

Answer:

If you eat all 17 apples, you will not have any apples left. However, the number of pears you have is not related to the number of apples you ate. So, the number of pears you have is unknown and not affected by the number of apples you ate.

The number of pears is irrelevant for the information given. Therefore, there is not enough information to tell and the number of pears remain unknown.

How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)

a. The atom’s volume increases.

b. The atom’s mass increases.

c. The atom becomes positively charged.

d. The atom becomes negatively charged.

Answers

c. The atom becomes positively charged

if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom

C the atom becomes positively charged

What might happen if there is excessive water removal from the Central Valley Aquifer in California?(1 point) Responses
A. It can cause severe weather changes in California.
B. It can cause severe weather changes in California.
C. It can transform California completely to a desert.
D. It can transform California completely to a desert.

Answers

Answer:

A

Explanation:

California is surrounded by the sea so it would never run out.

Water Poisoning A new report indicates that the over-pumping of aquifers during the Central California water crisis increases the risk of arsenic being released into the water. This dangerous chemical can significantly increase the risk of cancer, diabetes, and heart disease if it is present in high enough levels.

(pls help)

Guadalupé’s Argument:

Christchurch’s air temperature is cooler than usual during El Niño years because the prevailing winds are disrupted and the currents change. Therefore, the change in air temperature is caused by changing winds and currents.


Anthony’s Argument:

Christchurch’s air temperature is cooler than usual during El Niño years because the prevailing winds are disrupted. This evidence matters because prevailing winds push the warm currents that pass Christchurch. These currents carry energy, and that energy is transferred to the air, which makes the air warmer. When prevailing winds are disrupted, they do not push the currents toward Christchurch, so the energy transfer does not happen. This makes the air temperature cooler. Therefore, the change in air temperature is caused by changing winds and changing currents.


Who's argument is more convincing?


Guadalupé’s or Anthony's

Answers

Anthony’s because it explains way more

Which group of elements is not usually reactive with any other elements?
A. metaloids
B. plastics
C. noble gases
D. metals

Answers

Answer:

Noble gases

Explanation:

Noble gases are usallly unreactive.

Answer:

Nobel gases

Explanation:

Choose all the answers that apply.

Argon (Ar) is in group 18. Argon _____.

forms a salt when combined with a metal
has 18 electron shells
has properties similar to other elements in group 18
does not react readily with other elements
is part of the noble gas group

NEEDS TO BE ANSWERED ASAP

Answers

Argon (Ar) is in group 18. Argon is part of the noble gas group. Therefore, option D is correct.

What do you mean by noble gas ?

The term noble gas is defined as any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. They are also called as inert gas element.

Noble gases, which are most commonly found as monatomic gases, have completely filled outer electron shells and thus have no desire to react with other elements, resulting in very few compounds.

Helium, neon, argon, krypton, xenon, and sometimes radon are examples of rare gases with high stability and extremely low reaction rates. Also known as inert gas.

Argon is called as noble gas element because they have completely filled their outermost shell.

Thus, option C is correct.

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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

Answers

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.

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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

n a covalent bond: A. Both atoms share their electrons. B. One atom accepts electrons from another. C. The atoms attract each other but their electrons do not interact. D. None of these.

Answers

Answer:

Hey there!

In a covalent bond, both atoms share their electrons.

Hope this helps :)

The correct statement is that in a covalent bond, both atoms share their electrons. The correct answer is A. Both atoms share their electrons.

In a covalent bond, both atoms share their electrons to achieve a more stable electron configuration. Covalent bonds occur between nonmetal atoms, and they involve the sharing of electron pairs between the participating atoms. This sharing allows both atoms to achieve a more complete octet (or duet for hydrogen) in their outermost energy level.

Unlike ionic bonds, where one atom transfers electrons to another, covalent bonds involve a mutual sharing of electrons. This sharing can be equal (nonpolar covalent) or unequal (polar covalent) depending on the electronegativity difference between the atoms involved.

Option B, "One atom accepts electrons from another," is not characteristic of a covalent bond. That description aligns more with an ionic bond, where one atom donates electrons to another, resulting in the formation of charged ions.

Option C, "The atoms attract each other but their electrons do not interact," does not accurately describe a covalent bond. In a covalent bond, the sharing of electrons is the basis of the interaction between atoms, and the electrons of both atoms do interact and participate in the bond formation.

Therefore, the correct statement is that in a covalent bond, both atoms share their electrons.

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help me on this question please need answer today.


How do you think plants would grow in space? Which tropism(s) would be affected and why?

Answers

Answer: Mainly gravitropism because of the lack of gravity. The other two tropisms depend on the circumstance that it is in.

Explanation:

Answer: Plants use other environmental factors, such as light, to orient and guide growth

Explanation: In the absence of gravity, plants use other environmental factors, such as light, to orient and guide growth. A bank of light-emitting diodes (LEDs) above the plants produces a spectrum of light suited for the plants' growth.

Research gestation and mating. Find out three other mammals' gestation periods and mating rituals. How long is the gestation period, how do the mates court each other, and do they mate for life? What are some other interesting facts? Choose any three mammals you are interested in and use any sources you like. Write a three-paragraph essay comparing the gestation period of the three animals.

For an extra challenge, see if you can find out if any mammal has a shorter gestation period than mice or a longer one than Asian elephants.

Answers

Answer:

hold on i will help you soon

The period of time when sexual intercourse takes place between two organisms is called mating. However, all the matings need not end in fertilization.

The gestation period is a time when the embryo develops completely into a fetus. This is usually from the time of fertilization to the time of giving birth.

Let us take the comparison of the gestation period of 3 mammals.

The gestation period of a cow varies from 279- 287 days. The mating between the bull and cow occurs during the heat or oestrus period of the cow. At that time the bull mounts on the cow or vice-versa may happen during the mating period. This is termed bulling.

In the case of horses, the gestation period is 320-380days. The mating ritual in a horse is a bit different than in a cow. It usually has three phases of sexual behavior which includes: courtship, mating, and post mating behavior. During courtship, the stallion which is the male horse will approach the mare, prance, sniff her, nuzzle her, and groom her. The mare which is the female horse may squeal, kick, or move away to show the stallion that she is not ready. When the mare is receptive to breeding, she may stand still, deviate her tail, and urinate, leading the stallion to mount her. It usually breeds well in pastures than in controlled environmental breeding conditions.

Whereas in camels, the gestation period is far longer than in cows and horses. It is about 360-440days. The male camel displays its organ called a dulla to show out is ready for mating. The male camel Urinates on its own tail and swishes it over its back so that the Urine contains female-attracting pheromones. It shows distinct violent behavior towards other male camels. The female camel undergoes an estrous cycle in the breeding season which lasts receptive for 3-4 days, and non-receptive following the other 10 days. In the receptive period, the camel sits down and exposes its genitalia for the male camel to copulate. The whole mating takes about 20 minutes and is accompanied by gurgling and frothing by the male and bleating by the females.

It should be noted that African elephants have longer gestation periods like Asian elephants whereas no other animal has a longer gestation period than an elephant or a shorter gestation period than mice.

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You're using a dictionary to look up unfamiliar words. Which of these words is least likely to be an entry word?A. SoberlyB. FrigateC. ExpediteD. Streamer the name of the building above? Its very easy to see whether your subtraction is correct. Simply add the difference and the subtrahend. It should equal the minuend. For example, to check the preceding subtraction problem (208 135 = 73), add as follows: 73 + 135 = 208. Since the answer here equals the minuend of the subtraction problem, you know your answer is correct. If the numbers are not equal, something is wrong. You must then check your subtraction to find the mistake if the length of a is 16 centimeters, the length of b is 10 centimeters, and the measure of /C is 22, what is the length of c ? What is eco-tourism? Discuss the arguments presented at the council meeting in Hawaii to vote on a state-wide ban of GMOs. An orthogonal basis for the column space of matrix A is {V1, V2, V3} Use this orthogonal basis to find a QR factorization of matrix A. Q=0.R=D (Type exact answers, using radicals as needed.) 25 - 2 Find the measurements What two figurative language devices is the following sentence? Tiny turtles swam toward the sunshine while singing softly. a hyperbole b personification c metaphor d alliteration The neuroconstructivist view emphasizes the importance of interactions between biological processes and? Drivers of tractor trailers have four blind spots that make it difficult for them to see you. A blind spot is also known as a(n So if any of ya got like, screenshots of all the answers for Edge, 2020. Lab-Kinetic Energy-student guide, That would be really helpful. If you could help me, then I will mark you brainliest. And for you trollers out there who just want the points, could you not steal them for this one? Anyways, thanks ya'll! written one please answer Following the recent events between Russia and Ukraine, theRussian yield curve has become inverted. There are two reasons forthis situation: (1) the central bank raises interest rates tooffset shor Thomas has 19 playing cards. He gives 6 playing cards to his brother.How many playing cards does Thomas have now? Dream job essay ??????? The OutsidersWhat literary device does the author use to describe Johnny's beating by the Socs?A. foreshadowing B. flashbackC. figurative languageD. rhyme In the exchange principles in the theory of Georg Simmel, the more social actors perceive one anothers respective resources as valuable, the more likely an exchange relationship is to develop among them. This is the principle of _____________.A. AttractionB. ValueC. PowerD. Tension Which of the following options describes the phases of business cycle, in order of occurrence?Peak, recession, trough, recovery. What is the weight of 7 bags, each weighing 7 kg?