Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder.
Which statement correctly describes these broken pieces of the sample?
The fine powder pieces are individual atoms broken from the solid.
The larger pieces are still compounds and the smaller pieces are elements.
Each piece contains the same number of atoms.
Each piece contains the same proportion of different elements.

Answers

Answer 1

Answer:

D - Each piece contains the same proportion of different elements

Explanation:

just took the quiz on edge 2021

Answer 2

D, I did the test just now and got 100% :)


Related Questions

Select the correct answer.
Which food component is indigestible by the body?
A.
complex carbohydrate
B.
fiber
C.
protein
D.
unsaturated fat
E.
trans fat
Reset Next

Answers

Answer:

Fiber

Explanation:

Fiber is one kind of carbohydrate which is indigestible by the body. Fiber is a part of plant foods which is not digestible for our body.

Fiber is the food component that is indigestible by the body. Therefore, option (B) is correct.


What is a Fiber?

Fiber is a type of carbohydrate found in plant-based foods that the human body cannot digest or absorb. It passes through the digestive system relatively intact and provides several health benefits. There are two types of dietary fiber: soluble and insoluble.

Soluble fiber dissolves in water to form a gel-like substance in the digestive system, which can help lower cholesterol levels, regulate blood sugar, and promote feelings of fullness. Examples of foods that are high in soluble fiber include oat bran, beans, apples, and citrus fruits.

Insoluble fiber, on the other hand, does not dissolve in water and helps to add bulk to stool, promoting regular bowel movements and preventing constipation. It also helps to keep the digestive system healthy by feeding beneficial gut bacteria. Examples of foods that are high in insoluble fiber include whole grains, nuts, seeds, and dark leafy greens.

Including a variety of high-fiber foods in the diet can have numerous health benefits, including improved digestion, lowered risk of heart disease, and better weight management.

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What is a reflex action??
How is it produced???

Answers

Answer:

Automatic response that does not receive or need conscious thought.

Explanation:

Andrea wants to make tomato sauce from the freshly grown tomatoes in her backyard. However, she notices that the tomatoes are covered with dirt and fears that there might be some organisms on their surface. She also wants to brighten their color to reduce the dependency on artificial food colors. Which food preservation technique should Andrea use?

A) Irradiation
B) Blanching
C) Dehydration
D) VAcuuum Packing

Answers

D is the correct answer trust me

Answer:B) blanching

Explanation:

Lawmakers discuss methods of preventing pollutants that could directly start
a positive feedback loop in the area shown in the picture.
Which
of these
actions
should
they
take?
Total Ozone (Dobson units)
A. Ban the use of
chlorofluorocarbons
in rigeration
systems
B. Increase funding for coal technology
C. Lower allowed concentrations of particulate matter released from
factory smokestacks.
D. Increase the number of jets flying in the upper troposphere.

Answers

Answer:

A.

Explanation:

A P E X

Lawmakers discuss methods of preventing pollutants that could directly start a positive feedback loop in the area shown in the picture, and this happens due to the ban on the use of chlorofluorocarbons in refrigeration systems that is in Option A.

What are the negative impacts of chlorofluorocarbons on the ecosystem?

The ozone layer is an important component of the atmosphere that protects life on Earth from harmful ultraviolet radiation from the sun, and one of the major threats to the ozone layer is the release of man-made chemicals such as CFCs, which can react with ozone and deplete it, so if the ozone layer is depleted, more ultraviolet radiation can reach the Earth's surface, causing skin cancer, cataracts, and crop damage.

Hence, this happens due to the ban on the use of chlorofluorocarbons in refrigeration systems that is in Option A.

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en que unidad de longitud se miden las celulas

Answers

Answer:

La unidad para medir las células es la micra (m ) la cual equivale a la milésima parte de un milímetro (1m = 0,001mm).

Explanation:

Provide Three reasons why Nguni cows are referred to as excellent mother's​

Answers

Explanation:

They are termed as "Excellent Mother" because of the following reasons:

They have long productive lives, cows will produce 10 or more calves calving regularly.

The cows show great efficiency and often wean calves that weigh 45-50% of their body mass.

The application of evolutionary principles to the study of human variation Group of answer choices allowed scientists to divide the human species precisely into well-defined races helped replace earlier views based solely on observed phenotypes; brings the focus to geographic ancestry reinforced traditional views of races as fixed biological entities that do not change supports the idea that ethnicity and race are categories that can be used interchangeably (they are the same thing) when describing groups of modern humans.

Answers

Answer:

helped replace earlier views based solely on observed phenotypes

Explanation:

The study of human variation has shown that individuals from different populations (previously erroneously considered as geographic races) are often genetically more similar than individuals from the same population. In consequence, the evolutionary approach for understanding human variation has enabled us to discard the biological race concept based solely on observed phenotypes in order to provide a more realistic variation concept associated with evolutionary human development. From this perspective, it has been possible to confirm that 1-there are no human subspecies and 2- the concept of human races is not scientifically suitable to describe human variation.

What part of the body is not working as it should when you have asthma

Answers

Answer:

The Lungs

Explanation:

Asthma is a lung disease that affects your airways. With asthma, the lining of your airways is constantly hypersensitive, resulting in redness and swelling (inflammation). It's similar to how sunburned skin turns red, irritated, and sensitive. The airways become hypersensitive to things you are exposed to on a daily basis, or asthma "triggers." a trigger could be a common cold, stress, changes in the weather, or environmental factors like dust, chemicals, smoke, or pet dander.

Airway remodeling can occur as a result of poor asthma management. When asthma is untreated or poorly managed, it can lead to airway remodeling, which is a serious condition. The lungs become scarred, asthma medications become less effective, and less air can pass through your airways. It is not necessary to remodel the airways.

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Part B Which shape of molecules do scientists think may be important for the development of life and why?

Answers

Answer:

Molecular shape (the shape that a single molecule has) is important in determining how the molecule interacts and reacts with other molecules. The Molecular shape also influences the boiling point and melting point of molecules. If all molecules were linear then life as we know it would not exist.

Answer:

Scientists think that branched molecules may be important for the development of life. That’s because amino acids have branched molecules, and they are the building blocks of proteins

Explanation:

plato

I’ll give brianlist pls.
1.Why can air be
compressed?

Answers

Answer:Air Can be compressed because particles in air have alot of space between them

Explanation:

Air particles are not squished together like solid compressing air squishes the particles hence the reason air can be compressed

How can scientists use the fossil record to find evidence of relationships between different species?

Answers

Answer:

Species can be classified using the fossil record based on analogous or homologous structures.

Explanation:

By comparing the anatomy of both modern and extinct species, paleontologists can infer the lineage of those species, scientists use the fossil record.

What is Fossil?

A fossil is defined as the preserved remains, imprint or trace of a once living thing from a past geological age. Some examples of fossils are bones, shells, exoskeletons, stone marks of animals or microbes, objects preserved in amber, hair, petrified wood, and DNA residues. The totality of fossils is known as the fossil record.

Fossils form the morphological, or anatomical record, through comparing the anatomy of both modern and extinct species with the comparative anatomy of present-day organisms, paleontologists can infer the lineage of those species.

Thus, by comparing the anatomy of both modern and extinct species, paleontologists can infer the lineage of those species, scientists use the fossil record.

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help me plezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

10.. arteries and veins

11..they take in nutrients from the soil

12..cell membrane and cell wall

deficiency symptoms of molybdenum in photosynthesis​

Answers

Answer:

Molybdenum deficiency symptoms in most plants are associated with a build-up of nitrate in the affected plant part. This is a result of poor nitrate reductase activity. Symptoms include: pale leaves with interveinal and marginal chlorosis (yellowing) and necrosis (scald);

A student set up an experiment to show that carbon dioxide is consumed by Elodea plants during photosynthesis. She filled two test tubes with distilled water and placed a piece of Elodea in one of the tubes. She added a drop of phenol red which is a pH indicator to both tubes. She blew in each tube to add carbon dioxide, which caused the distilled water to become more acidic. She exposed both tubes to the light and recorded any color changes in the liquid in the tubes. What is the negative control in this experiment

Answers

Answer: The NEGATIVE CONTROl is the test tube that is filled with ONLY distilled water.

Explanation:

A negative control of an experiment is carried out alongside the main primary experiment except that the treatment is changed to something that is predicted to have no result. In the negative control, the student does not expect any response. This would help the student compare the result of a new experiment against an already known existing results.

Analysing the experiment carried out by the student, She filled two test tubes with distilled water and placed a piece of Elodea in one of the tubes, leaving the other without a plant. The other test tube that contains only distilled water is the negative control because she wasn't expecting any result from it. It's also served as a control sample to the primary experiment. This is observed as she blew in each tube to add carbon dioxide, which caused the distilled water to become more acidic. This would help the student know that the that experimental results are valid and to ensure that time is saved.

In 2011 and 2012, scientists working on the Banana River in Florida recorded a dramatic increase in the number of manatee deaths. Over the past 50 years, this area has also seen the human population increase by more than 500,000 people. It is believed that pollution from numerous sewage tanks leaked into the water, eliminating the manatees' food source, replacing it with an alga that is toxic to the manatee. This is an example of A) a natural cycle in an ecosystem B) the effect of increased biodiversity on an ecosystem C) human actions altering ecosystems with serious consequences D) direct harvesting in an ecosystem

Answers

Answer:

C) human actions altering ecosystems with serious consequences

Explanation:

The increase in the manatee´s death during 2011-2012 might be directly related to human actions.

The increase in the number of people during the last 50 years to more than 500,000 individuals, and probably the lack of policies and regulation, lead to an enhance in water pollution by sewage tank leaks.

Pollution probably caused a gradual decrease in the manatee´s principal source of food, which also caused an increase in the toxic algae population.

Algae caused the death of manatees as a consequence of human action that altered the natural ecosystem by polluting water.

Why might a scientist rerun an experiment if the experiment is shown to support a hypothesis?

Answers

A scientist might redo an experiment to make sure it is correct.

Which description best defines blastocyst? ОА. a fertilized egg OB. an egg released from the ovary Ос. a mass of specialized cells OD an embryo with a notochord Reset Next​

Answers

Answer:

ob

Explanation:

Write a short note on broyophytes? ​

Answers

Answer:

Bryophytes are an informal group consisting of three divisions of non-vascular land plants: the liverworts, hornworts and mosses. They are characteristically limited in size and prefer moist habitats although they can survive in drier environments. The bryophytes consists of about 20, 000 plant species.

[tex]\underline{QUESTION:_}[/tex]

[tex]Write~ a ~short~ note ~on~ bryophytes?[/tex]

-----------------------------------------------

[tex]\underline{ANSWER:-}[/tex]

Bryophytes are a loose classification of three non-vascular land plant embryophytes: liverworts, hornworts, and mosses. They are typically small and prefer damp surroundings, however, they may thrive in drier ones. There are over 20,000 plant species in the bryophytes.

[tex]\underline{-----------}[/tex]

[tex]\textnormal{HOPE IT HELPS}[/tex]

[tex]\textnormal{HAVE A GREAT DAY!!}[/tex]

PLEASE ANSWER FAST I NEED IT

Answers

Answer:

the answer to this would be d

What is the relationship between climate change and greenhouse gases?

Answers

Answer:

Greenhouse gases build up in the atmosphere, trapping warmth in.

Help with this question ! :

Describe the difference between local and systemic side effects​

Answers

Answer:

Action may be topical (local), enteral (system-wide effect, but delivered through the gastrointestinal tract), or parenteral (systemic action, but delivered by routes other than the GI tract).

besides sugar, what other ingredients that can be used as the substrate for yeast fermentation?

can anyone help me w this question?​

Answers

Answer:

In addition to oxygen, they require a basic substrate such as sugar. Some yeasts can ferment sugars to alcohol and carbon dioxide in the absence of air ...

In addition to oxygen gas, for the fermentation the basic substrate such as sugar is required. Some yeasts are required that can ferment sugars to alcohol and carbon dioxide in the absence of air.

What is Fermentation?

Fermentation is the process in which a substance is broken down into a simpler substance. Fermentation is the metabolic process through which organic molecules such as carbohydrates, such as starch or a sugar are converted into acids, gases, or different types of alcohols in the absence of oxygen or any other type of electron transport chain.

Yeasts are the organisms which preferentially metabolize sugars that are converted principally to ethanol molecule and carbon dioxide gas, however they can utilize different carbon sources, such as amino acids, organic acids, polyols, alcohols, fatty acids, and other organic compounds, depending on the species which undergo metabolic reaction.

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This is the question I need help with.

Answers

Answer: Brown beetle

Explanation:

It's brown so it blends in with the ground better.

Answer:the answer would be D

Explanation: the brown beetle is SUPPOST to be the tan colored beetle and the the ENVIORNMENT they are asking for is the new desert, in which case the brown beetle (or tan beetle) will have better adapted to the new envionrment (the New desert)

Which of the following is not true about inflammation

a) it acts to creat a immune system memory

b) helps prevent the spread of an infection to surrounding tissues

c) if it becomes widespread, a fever may result

d) it acts disinfect and clean injured tissues

Answers

I’m pretty sure it’s d cause that’s not inflammation

A dependent variable is:
A. Changed to test a hypothesis.
B. Measured to show the effect of a change.
C. Kep the same to make an experiment a fair test.
C
D. Collected to draw conclusions.

Answers

Answer:

B. Measured to show the effect of a change.

Answer:

B

Explanation:

Measured to show the effect of a change

the movement of water from the roots through the plant and out of the leaves is known as the... what

Answers

Answer:

Transportation

Explanation:

It can also be referred to transpiration.

Jules does not like when Hayden spends time with family. Jules thinks Hayden
should want to spend all free time with him. Hayden has tried to explain how
important family is and asked him to understand. Jules still gets upset every time
Hayden does things with family. This should be a red flag; the relationship might
be abusive. *
True or false?

Answers

Answer:

True

Explanation:

Jules shouldn't get upset with Hayden, and should know boundaries.

the answer is True hope I helped!!

im not sure what the answer is please helpppp

Answers

The answer is B because the humoral immune response is mediated by antibody

Each of you will have to show your work for the following questions.
1. In rabbits, grey hair is dominant to white hair. Also in rabbits, black eyes are dominant to red eyes.
GG=gray hair
Gg= gray hair
gg= white hair
BB= black eyes
Bb=black eyes
bb= red eyes
What are the phenotypes of rabbits that have the following genotypes:
Ggbb
ggBB
GgBb
ggbb

Answers

Ggbb = gray hair and red eyes
ggBB = white hair and black eyes
GgBb = gray hair and Black eyes
ggbb = white hair and red eyes

classifique os eventos abaixo em APRENDIZADO ou INDTINTO.
a) joão de barro fábrica a própria casa.
b) uma ave aprende a abrir a própria gaiola.
c) uma tartaruga retorna à praia que nasceu para por deus ovos.
d) ler um livro.
e) uma criança chora ao nascer

Answers

Answer:

sorry I don't know this language

Other Questions
Can I get an awnser to both of these questions? Thank you! Ethanol blended with gasoline can be used to power a "flex-fueled" car. One particular blend that is gaining in popularity is E85, which is 85% ethanol and 15% gasoline. E85 is 80% cleaner burning than gasoline alone, and it reduces our dependency on foreign oil. But a flex-fueled car costs $ more than a conventional gasoline-fueled car. Additionally, E85 fuel gets % less miles per gallon than a conventional automobile. Consider a 100% gasoline-fueled car that averages miles per gallon. The E85-fueled car will average about miles per gallon. If either car will be driven miles before being traded in, how much will the E85 fuel have to cost (per gallon) to make the flex-fueled car as economically attractive as a conventional gasoline-fueled car? Gasoline costs $ per gallon. Work this problem without considering the time value of money. This holiday season, Ms. Bastarache organized to give each 9th grader a $10 Dunkin Donuts gift card. Because she bought a lot of cards, Ms. Bastarache tipped the Dunkin Donuts employee $20.This function represents the relationship between the number of gift cards, c, and T(c), the total cost of the cards.T(c) = 10c + 20Be sure to answer BOTH questions below.1. Determine the total cost, in dollars, for Ms. Bastarache to give out 93 gift cards.2. Last year, Ms. Bastarache spent $820, how many cards did she purchase?need help asap plzzzzzz can someone please explain core and valence electrons in periods for me please A landscaper buys 1 gallon of plant fertilizer. He uses 1/5 of the fertilizer, and then divides the rest into 3 smaller bottles. How much does he put in each bottle? Answer pleaseeeeee !!! Two uncharged metal spheres, spaced 25.0 cm apart, have a capacitance of 26.0 pF. How much work would it take to move 12.0 nC of charge from one sphere to the other? Answer in Joules. 2. How does a writer express a stated theme? What is the quantity ofheat required to raise thetemperature of 500 g ofiron by 2C?The specific heat capacityof iron is 500 J/(kg C) What are the mensure of 1 angle and 2 angle? Show ur work or explain parabolaGiven that tan= [tex]-\frac{9}{4}[/tex] and [tex]\frac{\pi }{2\\}[/tex] In at least 150 words, discuss how Jem's character develops over the course of Part II of the book. Use at least three specific examples. Aside from the president, who else has the authority to enact an executive order?A). state governorsB). law enforcement officialsC). no one elseD). senators People do not cut down trees for fuel these days. True or False factorize this equation . -y+y Based on its structure, which word most likely means "someone who takes advantage of circumstances?credulousdisdainfulproactiveopportunistic On May 1, the Chris Company borrowed $30,000 from the Third Street Bank on a 1-year, 6% note. If the company keeps its records on a calendar year, an adjustment is needed on December 31 to increase:_______.a. Interest Payable, $900.b. Interest Expense, $1,800.c. Interest Payable, $1,200.d. Interest Expense, $600. Racoons will almost eat anything. They are most accurately called...1. carnivores2. omnivores3. herbivores4. producers Tin hc lm thay i cng tc vn phng ngy nay nh th no? gii phng trnh y 7y + 6y = sin x.