HELPPP

12. A researcher uses several procedures to separate a rock sample into different
chemicals. A mass of 50 grams of one chemical is produced. If this chemical cannot be
separated into other chemicals, then it is best described as
A. a compound.
B. a mixture.
C. a solution.
D. an element.

Answers

Answer 1

If a chemical can no longer be separated into other chemicals, it can be said that it is d. an element. This is because elements are the purest substances out there. Rocks are mixtures that are made of inerts and various minerals which are compounds. Compounds are then composed of elements.


Related Questions

The slope of exponential growth plot of an organism (with time on the x-axis andnumber of organisms on the y-axis) _____________.a) is always decreasingb) remains constantc) is always increasingd) increases until it reaches a critical value and then levels off

Answers

Answer:

The answer is "Option c".

Explanation:

In this question, the above choice is right, because the exponentially growing plot of even an individual is increasing steadily (to time mostly on the x-axis as well as the number of organisms mostly on the y-axis).

Which combination of a wire coil and a core would make the strongest
electromagnet?
A. 90 coils of bare wire around a hollow cardboard core
B. 50 coils of bare wire around a steel bolt
C. 50 coils of insulated wire around a hollow cardboard core
D. 90 coils of insulated wire around a steel bolt

Answers

90 coils of insulated wire around a steel bolt combination would make the strongest electromagnet.

Which would make the strongest electromagnet?

An electromagnet is stronger if there are more turns in the coil of wire or there is more current flowing through it.

How did the increase in the number of coils affect the strength of the electromagnet?

The strength of the magnetic field increases when the number of turns in the coil increases .

Hence, D is correct option

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Which of the following is NOT a part of Darwin’s theory of natural selection?
a. individuals in a population vary
b. organisms tend to over-reproduce themselves
c. there are limited resources for which individuals compete
e. variations possessed by individuals of a population are inherited
d. modifications an organism acquires during its lifetime are passed to its offspring

Answers

Answer:

B

Explanation:

Darwin's theory is all about the Origins Of Species

The statement seen in B is not part of that theory due to it's irrelevance.

How are fish more complex than other organisms?

Answers

Answer:

Fish know how to breathe, eat,  sleep underwater they evolved swimming and only knowing how to swim. Some fish can temporally fly while others can see and live deep into the ocean. There are fish that know how to hunt while some know how to hide in plain sight. While in bodies of water there are fish that can be good for the environment and some that are bad. Some have scales some don't some have spikes and some have multicolored scales.

Explanation:

What is the cell cycle?

A. repeating process of DNA synthesis


B. repeating series of stages a dividing cell goes through


C. the time a cell spends actively dividing


D. process of duplication of genetic material

Answers

Answer:

A cell cycle is a series of events that take place in a cell as it grows and divided. ... The cell then leaves interphase, undergoes mitosis, and complete its division. The resulting cells, known as daughter cells, each enter their own interphase and begin a new round of the cell cycle. so the awnser is b as in bee

Explanation:

Okay First lets take a dee breath now Step-By-Step

first we think about what the cell cycle is good question!

come up with a good explaining and why is that the awnser" then write facts down and you should have your awnser

Answer:

It's B

Explanation:

I took the quiz :D

Hope this helps

To pump and circulate blood is the work of which organ? *
0Brain
O Heart
O Lungs
O Small intestine

Answers

Answer:

heart i hope its right

Explanation:

..

Which Two process is it Giving brainliest i need help bad

Answers

Answer:

Boiling and Freeezing

Explanation:

Losing thermal energy means losing heat.

The outer part of DNA is comprised of




nucleotides.


oxyribose and phosphene backbone.


deoxyribose and phosphate backbone.


RNA.

Answers

Answer:

deoxyribose and phosphate backbone

Explanation:

The outer part of the DNA double helix contains an alternating sugar (deoxyribose) and phosphate backbone.

The outer part of the DNA double helix contains deoxyribose and phosphate backbone. So, the correct option is (C).

What is DNA?

DNA stands for Deoxyribonucleic Acid. It is defined as a polymer that is made up of two polynucleotide chains that are coiled around each other to form a double helix. Polymers contain the genetic instructions for the growth, function, development, and reproduction of all known organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids.

It contains the biological instructions which make each species unique. DNA with the instructions it contains that is passed from adult organisms to their offspring during reproduction.

One important function of DNA is that it is responsible for a process called protein synthesis, which is the process in which cells make proteins.

Thus, the outer part of the DNA double helix contains deoxyribose and phosphate backbone. So, the correct option is (C).

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What is the first division of animals based upon?
A) if they have backbones or not
B) if they have brains or not
C) if they walk or fly
D) if they have feathers or fur

Answers

I think if they have feathers or fur

what is the lehman’s term for mouth

Answers

Answer:

Oral Cavity or buccal cavity

Explanation:

Procedure:
The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sure to identify the test variable (independent variable), outcome variable (dependent variable).
Reminder: Test variable = the item you are changing or manipulating; Outcome variable = the item you are measuring
Test variable (independent variable):
Outcome variable (dependent variable):

Data:
Record the data from each location below.
Location Name
Boundary Type
(C=Convergent, D=Divergent, or T=Transform)
Year Observed
(5, 10, or 20 million years)
Geologic Events Observed
(earthquakes, faults, ocean formation, mountains, volcanoes, island chains, seafloor spreading)
Location One
Himalayas

5
Event 1-
20
Event 2-
Location Two
East Africa

5
Event 1-
10
Event 2-
20
Event 3-
Location Three
San Andreas fault zone

5
Event 1-
10
Event 2-
20
Event 3-
Location Four
Aleutian Islands

5
Event 1-
20
Event 2-
Location Five
Mid-Atlantic Ridge

5
Event 1-
10
Event 2-
20
Event 3-
Location Six
Alpine Fault

5
Event 1-
20
Event 2-

Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please write in complete sentences.
What types of geological events or changes occur at divergent plate boundaries?
What types of geological events or changes occur at convergent plate boundaries?
What types of geological events or changes occur at transform plate boundaries?
Explain how these geological processes and interactions have changed Earth's surface through the years. Be sure to use evidence to support your answer.

Answers

:)

Explanation:

Some types of geological events and changes that occurred at divergent plate boundaries are seafloor spreading, volcanoes, earthquakes, and ocean formation. ... Some types of geological events and changes that occurred at transform plate boundaries are island chains, earthquakes, faults, and volcanoes.

Answer:

Location Name

Boundary Type

(C=Convergent, D=Divergent, or T=Transform) Year Observed

(5, 10, or 20 million years) Geologic Events Observed

(earthquakes, faults, ocean formation, mountains, volcanoes, island chains, seafloor spreading)

Location One

Himalayas Convergent boundary  5 earthquakes

 10 mountain range

Location Two

East Africa Divergent Boundary 5 Island chains

 10 earthquake

 20 ocean formation

Location Three

San Andreas fault zone Transform Boundary 5 Earthquakes

 10 faults

 20 mountain range

Location Four

Aleutian Islands Convergent Boundary 5 volcano

 20 island chains

Location Five

Mid-Atlantic Ridge  Divergent Boundary 5 earthquakes

 10 volcano

 20 Sea floor

Location Six

Alpine Fault Transform Boundary 5 volcano

 20 sea floor

Explanation:

Hope this helps :)

Observă şi identifică!

Recunoaște țesuturile din imagini, utilizônd datele din tabel.

1.

5

A Tesuturi

embrionare

Localizare in special la varful Func

radacinii tulan

grosimea acestor argane-in plante

plantelor care tre mai mult de

prenel

mo

Answers

Answer:

a

Explanation:

i am right made a 100 good

the process in which a molecule of DNA is copied into a corresponding strand of mRNA is called a

Answers

Write down the whole question

I can't figure out this question please help. Science question (attached below)

Answers

Answer:That is an hurricane

Explanation:The reason why I said a hurricane because if you look at it the is an eye in the middle plus that's what a hurricane looks like.

Which is released during the formation of a peptide bond?
a five-carbon sugar
an amino group
O an amino acid
a water molecule

Answers

Answer:
a water molecule

Explanation:
Formation of peptide bond is a condensation process.
Water molecule is removed from this process

Answer:

d

Explanation:

Oxygen consumption can be used as a measure of metabolic rate because oxygen is

A necessary for ATP synthesis by oxidative phosphorylation
B necessary to replenish glycogen levels
C necessary for fermentation to take place
D required by all living organisms
E required to break down the ethanol that is produced in muscles

Answers

Answer:

the answer is B necessary to replenish glycogen levels

The measurement of metabolic rate can be done by Oxygen consumption because B:necessary to replenish glycogen levels.

The rate of metabolism can be regarded as the amount of energy that us been utilized in certain period, it can be with the rate of ATP production which is been measured through oxygen consumption.

Measurements by alcoholic fermentation can be done by the production of CO2.

Therefore, option B is correct.

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3 Consider this representation of an original DNA sequence: THE TALL MAN WAS SAD. Now consider the mutated sequence: THE TALL MAN WAR SAW. What type of mutation occurred?


Answer: substitution

Answers

Answer:

Substitution

Sorry this is late

Answer:

Consider this representation of an original DNA sequence: THE TALL MAN WAS SAD.

Now consider the mutated sequence: THE TALL MAN WAR SAW.

What type of mutation occurred?

ans substitution

Explanation:

got it on edge

The laws of superposition and original horizontality are best applied to?

sedimentary rocks
metamorphic rocks
all rock types
igneous rocks

Answers

Answer:

Your answer is sedimentary rocks

Explanation:

Hope this helped :)

I can be single celled or multicelled. I can reproduce sexually or asexually. I can be heterotrophic or autotrophic. I am Eukaryotic. What am I? A. Kingdom Protista B. Kingdom Monera C. Kingdom Animalia D. Kingdom Plantae

Answers

Answer:

A. Kingdom Protista

Explanation:

Kingdom Protista contains mostly unicellular eukaryotes. However, a few are multicellular.

Some protists reproduce sexually using gametes, while others reproduce asexually by binary fission.

Some protists are autotrophic, while others are heterotrophic.

Protists are eukaryotic, as their cells have a nucleus and other membrane-bound organelles.

Hope that helps! Please mark as brainliest!

In the five kingdom classification system, the kingdom Protista contains both unicellular and multicellular organism that exhibits both modes of reproduction. Thus, option A is correct.

What are the characteristics of the kingdom Protista?

Kingdom Protista is one of the kingdoms that has been constituted of the organisms that have single-celled and multicellular bodies and are classified under the eukaryotes.

They can show both the modes of reproduction as it includes alternation of generations, conjugation, and binary fission as seen in amoebas and Euglena.

They are autotrophic as they can produce food using chemosynthesis and photosynthesis as seen in Spirogyra. They also are heterotrophic and include sporozoans, paramecia, molds, etc.

Therefore, option A. kingdom Protista is correct.

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Terrestrial plants have a waxy covering produced by the dermal tissues called the cuticle. If this waxy covering was overproduced so that the stomata became clogged, what would happen to
the plant?

A) The plant would not be able to exchange oxygen for carbon dioxide, and the plant's ability to perform photosynthesis would be limited.

B) Sunlight would not be able to reach the plant's ground tissue cells through the thick dermal tissue, and the plant's ability to perform photosynthesis would be damaged.

Answers

A is the correct answer

What molecule forms the cell membrane? proteins carbohydrates phospholipids nucleic acids

Answers

Answer:

phospholipids

Explanation:

The human population on Earth is currently growing
O A. exponentially
B. slowly
O C. linearly

Answers

Answer: Exponentially

Explanation:

The human population on Earth is currently growing exponentially. Therefore option A is correct.

Exponential growth refers to a pattern where the population increases at an ever-accelerating rate, proportionate to its current size.

This growth is driven by factors like technological advancements, improved healthcare, and higher birth rates.

Over the past few centuries, the human population has experienced significant exponential growth due to advancements in agriculture, medicine, and industrialization, which have allowed for better living conditions and longer life expectancy.

While the rate of growth may fluctuate over time, the overall trend remains exponential.

However, it's essential to consider sustainability and the impact of such growth on resources, the environment, and societal challenges in the future.

Therefore option A exponentially is correct.

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During interphase, homologous chromosomes are
a Fragmented
b) Separated
c) Elongated
d) Replicated

Answers

The answer is D i think

During interphase, homologous chromosomes are: d) Replicated.

What is mitosis?

Mitosis refers to a cell division (duplication) through which a single parent cell produces two (2) genetically identical daughter cells.

The phases of mitosis.

Basically, there are five (5) distinct phases that takes place during mitosis and these include:

InterphaseProphaseMetaphaseAnaphaseTelophase

During interphase, homologous chromosomes are replicated through duplication division so as to form sister chromatids.

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Hurry! Worth 25 points, will mark brianlest if correct. After ______, following meiosis 1, each cell has half the original number of chromosome.
Interphase
Cytokines
Metaphase II
Anaphase II

Answers

Answer:

Cytokinesis

Explanation:

After meiosis I finishes, the cell splits in a period called cytokinesis. Each cell then has half the original number of chromosomes.

Can someone pls help me with this pls I’ll mark the brainliest

Answers

Answer:

B is correct

Explanation:

B for Barry B Benson

Sedimentary rocks are formed from:

eroded land
metamorphic rocks
magma
heat and pressure

Answers

i think the answer is eroded land

Answer:

Eroded land

Explanation:

Sedimentary rocks are formed from other rocks and minerals.

Hope this helps, Let me know if I am wrong ( pretty sure I am right), OH! and GOOD LUCK :D ;P!

can some plants can be grown from stem cuttings

Answers

Answer:

Yes. Only if the conditions are suitable.

Explanation:

Stem cutting produces new roots and new stems.

Having a difficult time with this question please help .

What is the purpose of the Punnett Square as it relates to the study of
Heredity?

A. It can accurately measure the number of genes on each chromosome.

B. It can accurately count the number of different genes in a person's DNA.

C. It can predict from 0 to 100 percent the probability of the different combinations
and frequencies of genotypes a child can inherit from their parents.

D. It can predict how intelligent a person will be based on the number of recessive
genes in the genotype.

Answers

C
Punnett squares are only used for predictions, as they can’t accurately measure/county anything.
Can help us predict the certain outcome of traits in an organism; shows the probability of a trait happening as well as all of the possibilities.

What property of water allows water to move through materials with pores and cling to the fibers of materials ​

Answers

Answer:

Capillary action

Capillary action is the combined force of attraction among water molecules and with the molecules of surrounding materials causing a liquid to climb upward against the force of gravity. It allows water to move through materials with pores inside.

Explanation:

Hope I helped you!!

Which best describes the law of independent assortment?
A. The F2 generation will be identical to the F1 generation.
B. Traits can only be controlled by a single gene.
C. Alleles of a trait separate independently when gametes form.
D. The traits of an offspring are independent from the parents.
S

Answers

Answer:

Alleles of a trait separate independently when gametes form.

Explanation:

just answered it

The statement best describes the law of independent assortment is Alleles of a trait separate independently when gametes form.

What is the law of independent assortment?

The law of independent assortment says that there are different alleles present for different genes. The allele received by one gene does not affect the allele received by another gene.

Thus, the correct option is C.

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When there are faster vibrations are more or less waves formed?Please answer as soon as possible its due really soon When an author describes a characters personality, likes, and dislikes, the author is using Which of the following is an example of plagiarism? A. You create a new idea of your own, concluded and synthesized from the research. B. You cite your sources properly, but you present your ideas mostly as your own. C. You include a works cited page containing all sources used at the end of your paper. D. You internally/parenthetically cite direct quotes and information paraphrased. MORE HELP PLZWhich group of organisms evolved first?amphibiansfishreptilesmammals Who led the Protestant Reformation?a.Martin Lawrenceb.Martin Luther IIc.Martin Luthleyd.Martin Luther In ancient mythology and modern media, there is a humorous character archetype, the comic relief, that can also bring great change. This archetype is:The Shape-ShifterThe JokerThe TricksterThe Clown details about george chesters point of view Which of the following is a type of input device?SpeakersTouchscreenMonitorHard drive Find the value of c so that the polynomial p(x) is divisible by (x 3).p(x) = -x3 + cx2 - 4x + 3= How will a decrease in personal income affect the market?It will make goods cheaper to produce.It will make stores attempt to sell more goods.It will make consumers want to buy goods rather than save.It will make consumers buy fewer goods and demand lower prices. According to the lecture, what aspect of American culture inspired the pop art movementa. The influence of mass production 10. What was one important achievement of the Maurya Empire inIndia? Please Help Which steps should be used to compare the fractions StartFraction 2 Over 9 EndFraction and StartFraction 5 Over 6 EndFraction??Find a common numerator.Add the numerators and denominators to determine which sum is larger.Use the greater than symbol to show which denominator is larger.Multiply the first fraction by StartFraction 2 Over 2 EndFraction and the second fraction by StartFraction 3 Over 3 EndFraction Which one is not a symbol?A. Object, event, person, or animalB. Icon that stands for a bigger meaningC. metaphor or simileD. Has extraordinary meaning and significanceE. Symbolizes moodF. Symbolizes a groupG. Symbolizes a greater thought Which is correct please hurry Create your own thesis statement with supporting claims. Write atleast 5 thesis statement why is recycling important? (how is it affecting our living?) Select three numbers that are between -0.55 and -0.54.-0.548-0.058-0.5469-0.5420.551 What were some of Pericless achievements? Choose four correct answers.He defeated Sparta in a major war.He helped the spread of democracy.He ordered the building of the Parthenon.He helped form the Peloponnesian League.He rebuilt Athens after it had been ruined by war.He made Athens a center for learning and the arts. Arnold is planning on painting a mural. Before painting the mural, Arnold painted the picture on a paper that is 5 inches wide and 11 inches tall. Arnold is using a scale in which 12 inch represents 1 foot to paint the mural.How wide and tall will the actual mural be?Drag and drop the height and width of the actual mural into the boxes.Mural Height Mural Width2.5 ft5.5 ft10 ft22 ft